7. This delay in piston movement causes a momentary decrease in pressure at the throat, thus achieving a momentary increase in richness much the same as with an accelerator pump. Impreza - $974. Quantity required - 1. Followers 0. Float chambers The float chamber of the carburettor contains a float and a needle valve. Carb Damper Oil $11. If it were my car, I’d have to find a brass one for it, but it’ll work just fine as is. This means that the speed at which air flows over the jet never varies. 6inches. The SU carb people have a product they sell for their carbs. Description: Genuine SU, 125ml Bottle. Check the piston damper oil level : a. com When out on the track, you can spend an entire weekend tuning spring rates and shock settings, and shave a second from lap times. C $25. 8 – Roadster / FHC E-Type S2 – Roadster / FHC / 2+2 XJ6 - S1 Your Trusted Source for Jaguar Parts Since 1965. Excellent before and after sale service, many hard to find parts exclusively available in our online catalog. 99. uk It's important that the dashpot on your carburettor is filled with oil, preventi SU carburetors have a minimal number of moving parts and are easy to tune, providing of course you understand the operational principles! It is the intention of this article to help clarify those principles in the hopes that many owners will be able to tune and maintain their SU carburtetors SU, 1-barrel Carburetor Rebuild Kits and Parts. piston damper. 75 inch SU carburettor. Rover played around with these dampers with different length rods so look for the number on the topof your old one. U Carburetor Damper Oil (125ml) - BDR125. If the specs for those would be of any use let me know and I'll post them up. I had the carbs (SU HIF4's) rebuilt in April and have been working to get them adjusted (I'm having a little trouble with the mixture). £11. Dont think of the fluid as a lubricant. phatgixer. DAMPER RODS -SU CARBS. 5"SU as fitted on original 19990s 1275 minis except Coopers with HIF44 carb, but was also used on some Metro HIF44 carbs. info Welcome to our Site for MG, Triumph and Austin-Healey Car Information. Also check all vacuum hoses and the vacuum canister on the distributor. Note that some SU Carbs have a small breather hole in the top of the damper rod, the D series SU Carb has to be fitted with a solid damper rod cap. There are only two adjustments on the SU's. The problem with your SU carburetors is often your Lucas distributor! su carburettor. The manifold vacuum causes this piston to rise allowing more fuel into the airflow. The British SU carburettor's main piston carries a stepped needle. The front (plastic) one is vented, which will do no harm. When the rear damper is pushed down by hand it does not feel as smooth as the front one. SU carb problem. 84. One problem with trying to deal with it on the message board is the sheer volume of information offered and available against the time available to post it. auc8102 2. Once the piston is free it works as expected. 00. 29 shipping. Equipped with floating needle. SU Jets & Tuning While doing a fairly major tune-up on my 120 OTS I again encountered the irritant of having the (SU) carb jets stick in a raised position after I have loosened the adjusting screw and am trying to richen the mixture. U. SU Carb damper oil, OEM $ 21. The method used to… SU Carb set up. Discussion. co. In fact, throttle response get's much better and  What is the function of the damper? The basic function of the carburettor dashpot is to lift the large diameter piston in the bell shaped suction chamber for a given  Results 1 - 48 of 137 1½” SU Carb HEX Brass Piston Damper & Gasket for Austin Morris Classic SU Twin Carburettor HS2 Dampers Austin Mini Cooper MG  SU Carbs - Dashpot oil. They will fit all HS2 HS4 & HS6 Carbs The SU is a constant velocity carb. I own a 75 MGB and the oil damper in the Zenith carb was using a lot of oil. SU DAMPER OIL is suitable for post 1940 vehicles using SU and Stromberg carburettors incorporating a damper in the dashpot assembly. From United States. In fact every other day I was refilling it. Connect a reliable tachometer to the engine in accordance with the instrument manufacturer's instructions. I used some 5W 20 synthetic oil that i was given by my neighbour who has a motorbike and thought this would be alright. Also they have to have the dampener spring to operate. Unfollow mgb su carbs to stop getting updates on your eBay Feed. Genuine SU, 125ml Bottle. SU HD8 Carburetor Damper Washer AUC5900. 3. Buick Carburetor Heat Plate Baffle 364-401-425 Nailhead + 300-340 1957-1966. Remove the suction chamber and look at the end of the damper rod with cap screwed snugly into the chamber neck. 8 – Roadster / FHC E-Type S2 – Roadster / FHC / 2+2 XJ6 - S1. SU Sensitivities This is the correct oil for filling the dashpot dampers on all 1945 and later British cars using SU carburetors. The 1" OM SU Carb 9th of November, 2019. SU Carburetor Damper Springs "Blue" MG Midget, Lotus Elite,Sprite 948 1098 1275 5 out of 5 stars (1) 1 product ratings - SU Carburetor Damper Springs "Blue" MG Midget, Lotus Elite,Sprite 948 1098 1275 V8 Register – MG Car Club 180519-MGBGTV8-SU-carb-floral-clip-R1 V8NOTE541 2 a damper coming loose, but I suppose it could. Jaguar Xke E-type Carburetor Linkage 4. Reply Reply Author. Haynes has an excellent manual just for SU carbs, it covers operation, theory, rebuild of all models, and has needle charts for hundreds of car/engine/carb set-ups. The SU has one jet which must supply fuel during all stages of engine operation (i. SU Hitachi carb Parts: New parts installed: Throttle shafts & bushings (Datsun OEM) , throttle valves, New floats NOT included , float valves & pins, nozzels, meetering needles, air piston return springs, dampers, suction chamber & float bowl retaining screws & all seals & gaskets. If the spring in the dashpot is different what is it? and does anyone know what sort of pressure it is? 3. 75. They should be removed from the engine for cleaning. £12. This is the correct oil for filling the dashpot dampers on all 1945 and later British cars using SU carburetors. $19. Add to Cart SU Carburetor Damper Oil 220-225. Carb. I recommend that the dashpots are filled with thin engine oil every 1,000 miles, and at the same time a few drops are accurately dripped onto each of the spindle ends and the accelerator linkages. SU Damper Oil Info A great site rich with information about damper oil and SU carbs. 42 sold Where does the oil go that is supposed to be in the carb dampers? Car was running rough on way home yesterday, I checked lots of things and went to the dampers. Note: You can check for matching float settings, after setting the mixture, by removing the pistons, and peering down at the jets. They vary considerably  Su Carburetters are The Worlds Sole Manufacturer of Genuine SU Carburettors, Fuel Pumps and Spares. SU carburettors are a brand of carburettor of the constant-depression type. Quantity in Basket: none. Jaguar '49-'50 Xk-120 Su H6 Carburetor Set 1 34 Auc 531 And Rare 3256 Float Bowl Mgb Su Carburetor When you're searching for a brand-new vehicle, the areas where you could go shopping are practically unlimited. If the piston does not fall with a solid "click" your jet probably needs centering (fixed needle carbs only). $26. Single and multi-carburetter installations 2. SU. At Repco, we have all the Small Engine & Garden items you need, including Penrite SU Damper Oil 150ml - SUDAMP000150. Discussions Currently there are no discussions available for OEM SU Brass Float H and HD Carburetors 1950 - 1968 $44. In my Haynes SU Carburettor book for the HIF Type it says: Fill the piston rod with oil. For light damping (faster response): Marvel Mystery Oil (very good for this application) Car & Model Year Mfg Type Carb Spec. 60. Internet Price $77. C $67. So video insted. Myth Two: You need to enclose the carb in a pressure vessel to get the venturi effect to work. Most manuals recommend 20W-50 oil, but some British car mechanics (many older British cars use SU carbs) swear by ATF (automatic transmission fluid). 00 excl VAT will be charged in addition to the unit cost if it is supplied in advance. Jan 15, 2011 · SU's are SU's, and the balance is one that won't be covered in a short post. 26 shipping; From United States; Austin Healey 3000 Mk 3 BJ8 su HD8 Carburant Rebuild Kit Genuine SU Dashpot Oil. Description: SU height shortening The Dashpot and Piston have been machined to reduce the overall height of the carb and it is fitted with a flat topped damper. This restricts the rate at which the piston rises, but allows it to fall freely when the butterfly is shut. SU Carb Dashpot oil. D SU Carbs. Sprite and Midget Plastic Dashpot Damper For Hif38 1. £79. This page should help a bit. The Stromberg CD carburettor, like the SU (See Adjusting an SU carburettor), is a constant-depression carburettor, hence the CD. #aue900 su carb gasket set hv2 hv3 hv4 h1 h2 h4 d4l uba d2 d3 d4 d5 om $20. . e. It is composed of a cylinder, spring and a shaft that is attached to the throttle. He was born at Ealing in April 1872, the son of William Banks Skinner, a Jan 02, 2019 · My rear SU carb does not have the correct smooth sliding piston movement as the front one. Mine have the black plastic damper cap. Carburettor Damper oil PENSUDAMP00015 £ 4. Internet Price $27. A poppet valve is one where there is a hole and a 'poppet' to seal it. Trending at $65. its the most common SU/turbo set up and we know its works. Weber The SU is really durable and with considerations made to condition and setup will do none of the above. In all cases, these concerns are mostly fear rather than fact. carb rebld kit 150 zs ; gasket, air filter to carb ; cap and damper assy ; cap and damper assy ; diaphragm 150cd ; air piston spring 150cd ; chamber cover screw ; jet metering needle ; jet needle, adjustable, 44a ; jet needle, 45q ; jet needle, 45k ; jet needle, 45r ; disc, throttle ; screw, throttle disc to shaft 114326 - Burlen - SU Dashpot (Damper) Oil 125ml Bottle. (13 mm) below the piston top. Two required per carburetor. Austin Healey Sprite Frog Bug Eyed 1958-60 - 1⅛” SU H1 Carb SU DAMPER OIL is a mineral based oil containing anti-corrosion and anti-wear additives for the lubrication of pistons and dampers in SU and Stromberg carburettors. 5 Su Carbs. (45). Image for CAP & DAMPER ROUND BRASS HEAD 6. but it doesnt keep the regular SU location It can be run with a single or duel SU's and is very common with the brit cars turbo and super charger set ups. A surcharge of £100. 1; 2; First 2 of 2 Go to page. Browse our selection and order  6. 95 For post-1940 SU and Stromberg carburetors incorporating a damper in the dashpot assembly (150ml) Mar 05, 2001 · Usually, we opt for camshafts in the 220-222 deg. Austin Healey Sprite Frog Bug Eyed 1958-60 - 1⅛” SU H1 Back to overview Fuel Systems, the carburetor Basic Principles of the SU Carburetor The majority of car engines rely on carburetors to provide them with the finely atomized fuel/air mixture necessary for satisfactory performance. All images used are "generic", your item may look different. Often underrated, it offers versatility and reliability due to being analogue and the vast array of needle profiles available. Be careful when removing the assembly as the needle is sticking out off the bottom and you don't want to bend or break it. EUR 10. Showing all products belonging to the Damper Assemblies category. Pour in SAE 20 oil into the hollow piston & then re-install the piston assembly. Others have reported success with ATF (automatic transmission fluid), sewing machine oil (generally 10W), or motorcyle oil. pair of su carburettors of unknown origin, acquired as part of a job lot of other car parts. The oil reservoir in the suction piston rod in which the oil damper plunger is equipped should be topped up to the level periodically every three months or 5,000 km (3,000 miles) with thin engine oil of preferably SAE 20 but not thicker than SAE 30. By BlueTR3A-5EKT, November 14, 2015 in General TR Technical. 95 Quantity in Basket: none: Factory Carburetor Insulator Block, 72 240Z Code:10-2534 Price: $29. But, how do you know if you are even in the Jun 25, 2020 · My 1964 3000 MkIII has SU HD8 carburetors. The two work in much the same way, but the Stromberg differs in having an air valve - commonly called the piston - surrounded by a rubber diaphragm in the dashpot. Then it is very simple to tune the carburetor as a single carb engine with no confusion from the other carb. Jam Nut, Rear Brake Hose, Bonnet Pin, Manifold (NT606041) I have a 1972 MGB roadster. In rare setups triple OM Carbs are fitted. Nothing changed during 1500 production, and nothing changed during 1600-1622 production. C $19. B. Remember to refill the dashpot with oil and tighten the damper after exercise. SU Carbs - HIF, a more finely honed instrument The basic SU design has maintained the same basic format since it's inception. SU Carburetor Damper - Brass Cap Fits: E-Type S1 3. $62. The piston should lift smoothly and easily with damper rod removed and fallback suddenly. Carb Damper Dipstick, 70-71 240Z Code:11-2561 Price: $5. are available by size. This can be done with or AUD434E - MGB 1972-1973 PAIR OF HIF SU CARBURETTORS - RECONDITIONED. 13) Repeat steps number 5 through 11 on the second carb. Almost gone · Austin Healey  Price: $21. $32. 5. As you know if there isn't sufficient oil in the damper it makes for hard starting. At the throat, an HS6 Jan 02, 2019 · My rear SU carb does not have the correct smooth sliding piston movement as the front one. Almost gone. Someone who used a re-tapered needle and heavier damper oil (which is intertwined with spring weight, as well as supplemental weight on the piston which also affects how it opens) may have a na engine which will fall on it's face from mix dropout if the piston opens a velocity drops too fast. Price : $12. 87 See Below. The manuals say top off every 3000 miles or so. Float - Upgraded Nitrophyl. Carburetor Maintenance If the damper has adequate oil, spitting generally indicates too lean a setting; screw the jet  I have a dvd from when I had su carbs on my Datsun that you are The damper pistons are designed to allow a little drop on off throttle but I  5 Sep 1996 When the dashpot damper plunger or the dashpot oil reservoir walls wear, the carbs will become momentarily too lean upon acceleration. Dec 19, 2014 · My SU book tells me the Spitfires use Red AUC 4387 4. It drops within time and has the distinct ker-plunk sound. 8 mm. Mel-S3. Carburettor Tuning Tools; Float Bowls and Lids; Jet Bearing Kits, Jet Links. 48 exc vat Fixing DRIPPY SU H-Type CARBURETORS -- CB-106. BMC/Leyland recommended that product at one time in the driver's manuals but at other times recommended engine oil. 95 Sprite and Midget Su Hs4 Carb Jet Waxstat Late Type. Does anyone know what needle id be May 01, 2018 · Every part of the carb is treated like it is the most important part. 1937 was the year the ubiquitous H-type SU carb was born featuring a range of choke bore sizes from 1-1/8 inch to 2 inches in 1/8 inch increments; a carb to cover all applications and so successful was the design it stayed virtually unchanged right through to the end on the 1950s. Add to Cart Zenith to Twin SU Carb Conversion (US 1500) Another conversion by Howard Baugues. Jul 31, 2011 · Page 1 of 3 - Su Dashpot Oil Choice - posted in Problems, Questions and Technical: I am going to use an SU HIF 44 to fuel my 1380 engine when it,s rebuilt, i,ve read in various publications that a 5W type synthetic oil is best for the dashpot. Jaguar '49-'50 Xk-120 Su H6 Carburetor Set 1 34 Auc 531 And Rare 3256 Float Bowl. Go. idle, acceleration, cruise), despite the fact that the engine demands vastly different amounts of fuel and air for different situations. Carb tuning is a black art. S. Description: Carb damper oil, SAE 20 (for dashpots) 110 kr : 237353: Needle "KN", SU B20B (spring-loaded) 193 kr: pcs SU carbs: SP: 44 kr: pcs : 71856: Spring for SU idle The SU Carburettoris a simple design proven to be very effective. Dampers are designed to Slow the rise of the Suction Piston in the Carburettor in order to give a richer mixture on snap acceleration. 125" no hole in cap. The pointers fit into the test rods and will help to compare the movement of the pistons. 95 Mar 16, 2011 · this is an SU draw thru set up. what if any are the differences between a normal HIF44 carb and a "turbo" one is it just differnt springs in the dashpot and needle or is there more to it than that 2. The correct spring choice should allow the damper piston to reach full lift just before the point where the engine develops it's maximum power Some racers tend to go for the lighter spring choice to make sure they get full travel a bit earlier, but keep in mind that these guys are tuning for outright performance and would have their mixture on To attach the tuning tool to the carburetor, simply remove the damper on top of suction chamber and insert the test rod into the hollow piston spindle. It could be that the carbs are later ones - my book is quite old! For the HIF6 on the Rover P6 3500 my book lists two needles (earler HS6 are different, as are US-spec): BBG and BBV. U nscrew the cap and withdraw the damper. D2 SU Carb D3 SU Carb D4 SU Carb D5 SU Carb. Early 'Z-cars' used SU carburetters which are variable venturi type, as he accurately described. 2 Ounces. Unscrew the damper cap, withdraw the damper and top up the reservoir until the oil level is 1/2 in (12mm) above the top of the hollow piston rod. Carb Spacer, 1. Rebuild Kits Float Needle Metering Needle Damper Spring Throttle Shaft** Floats ASTON MARTIN DB1 2 Liter Thermo 1949/50 SU 2xH4 AUC 485T DR/1450 6151 DR AUC1167 TS1500 NT-03 DB2 2. EUR 11. " They could leak at the rubber grommets between the float chamber and the carb body (banjo bolt mounting). 125" hole in cap. The damper (aka dashpot) is oil-filled. The purpose of the SU damper is to retard the rapid upward movement of the piston on the rapid throttle opening associated with acceleration. You could locate cars available on social media sites, in your paper, as well as specifically at your neighborhood car dealerships. Austin Healey Sprite Frog Bug Eyed 1958-60 - 1⅛” SU H1 SU carb leaning out and the starving - posted in Engine: I have a 179 with a 3. 75 SU carburettor FZX 1415, Carb type HS4 Austin Morris 1982-1991. £9. Removing the dashpot cap can readily identify this type of carburettor, as there is no damper rod on the underside. Fill the recess in the damper retainer with engine oil (preferably S. 99 INC VAT Modified 1. 4-0. 5 out of 5 stars. US manufactured and ethanol ready. Think of that as a little shock absorber. Application SU DAMPER OIL is suitable for post 1940 vehicles using SU and Stromberg carburettors incorporating a damper in the dashpot assembly. The slotted end of the test rod should fit tightly for lifting the piston to the top level. 95 SU Carburetor Damper Oil Dashpot Oil Volvo Amazon 122 122S 1800 142 144 PV 444. Same carbs on a Lotus 1600 twin cam - out of tune Su Turbo Carb? - posted in Problems, Questions and Technical: I have a few quesions 1. For that problem, replace the rubber grommets. damper with. It is a nice little reminder for the purpose of originality. Other problems that SU carbs experience involve dirt in the dashpot and occasionally in the float chamber. 99 This product is not currently available. The SU carburettor is simple to strip. MPN (Manufacturer Part Number): 220-225. The uneveness between carbs might be due to one sticking a bit. Carb Damper Piston V8 Su - CUD2901A HIF6 - 1976 to 1981 Customer Review. The B 20 B engine in the 1800 model and in cars intended for USA and Canada is fitted with two horizontal carburettors of type Stromberg 175 CD-2 SE, see Figs. Please select your car model from below to see specific application information, or click the Add to Cart button to make your purchase. 5oz downforce at 2. it requires no mods to the carb since SU's are constant vacuum carbs and being in front of the turbo METRO 998cc 1275cc HIF 38 SU CARB CARBURETTOR SERVICE KIT. Price: £14. Standard suction chambers. Sold Per: Each SU Carburetor Front and Center Chamber Lid 375-068. Quantity in Basket: none: SU Carburetor Rebuild Kit, 70-72 240Z Code:11-3151 Price: $33. 33. add to cart SU Gasket Packs; Sundries Kits; SU Rebuild Kits; SU Service Kits; Carburettor Spare Parts. MG Midget Carb rebuild kit 75-79 Item #: ZE14K MG Midget Carburetor damper 61 Apr 24, 2012 · I just got my su carbs on my 260 today and wanna know what kind of oil I need to put into them and how much, one of them is low on oil and needs to be topped off. Description: Description: SU HD8. float chamber SU HS6 carburettor disassembled Unscrew the cap and raise the piston and damper to the top of their travel. Help: I have a sticking SU carb piston problem. Oct 19, 2008 · SU carb. (Right-hand steered 1800 cars are also fitted with this type of carburettor). Its a good idea to take the dashpots off every so often and give them a good clean out with a rag soaked in SU Carburetor Needle Searchable Selection Chart. 1 x SU HD6 Carb YELLOW DAMPER PISTON SPRING for DAIMLER Dart SP250 Sport 1959-64. A. 95 Morris Minor SU HIF dashpot damper cap low profile. clean. The curse of the B, the most feared part of the engine, the most messed with, and often incorrectly set bit of kit! Remember, though, as the saying goes, 90% of carb faults are electrical! SU brand major kit does both carburetors. When the dashpot damper plunger or the dashpot oil reservoir walls wear, the carbs will become momentarily too lean upon acceleration. This reduces the carb height by approx. This needle is held in the fuel flow orifice. My friend has a 1960 3000 with SU HD6 carburetors. Please see our Ebay Store for more British car parts. Take your Zenith adjusting tool and push the needle assembly back down. info MG-Cars. Dec 30, 2008 · The viscosity of the oil and strength of the damper spring working together determines how fast the carb reacts to throttle changes. The HIF, overleaf, differs in some ways. Many of us have touted our preferences and discoveries whilst playing about over the  SU Carburetor Damper Oil 220-225. The SU is really durable and with considerations made to condition and setup will do none of the above. Twin SU Installation A page that shows many closeup photos of a twin SU installation on a 70 Spitfire. 18 Feb 2011 This comes up a lot, and there never many pictures and then people thing they will kill their car with too much oil. Overhaul kit, 2 SU HS6 carbs, Temporarily out of stock. The casting number on the main body is usually 617T. 1; 2; Next. Unscrew the damper rod and set it aside. 4. 95. 1938 and Sep 09, 2011 · The SU carb constantly adapts to whatever conditions the engine is experiencing seamlessly, whereas other carbs have discrete circuits for different sets of parameters, and transitioning between them can be less than smooth. If you notice a decrease in RPM you have located a vacuum leak which must be repaired. ( which if you’ve ever taken a shock absorber apart it sort of does). This meant losing most of the oil. Pickup's are not an option as we send goods from our own multiple Secure Australian warehouses. More Information. Spray all joints and connections in the intake manifold with carb cleaner. Item #: AUC4900 - Fiber washer used under the damper cap on SU HS carburetors. Another thing to check is the damper piston clearance. 090) HIF44/HS6 (0. Nissan recommended 20W or 10W30 Elephant Oil, but any brand of motor oil will work. If you have any photos or other information on SU LZX1511 DASHPOT DAMPER HIF38 This dashpot carb damper is for the HIF38 1. 3 Aug 2010 This video however proofes that it is absolutely possible to run an SU without oil damper. standard valve. This subject is a regular message-board poser. Spits & backfires. This product is specific to particular car models. The OM is a 1" bore SU carb fitted to prewar Morris Minors, Austin 7s and in pairs on some MGs. I didn’t do anything to the cold start device. Our custom work is designed from scratch. Carb Fuel Hose, 70-72 240Z Code:11-2541 Price: $19. The float bowl is the same as the H series SU Carb, as is the piston. Over the past 50 or 60 years people have used a lot of different oils in the damper for specific purposes or because it was what they had. 2 L Series 1. My 16 does have a piston spring - the piston is horizontal as its a down draft carb. Jump to Latest Follow 21 - 33 of 33 Posts. Only add a drop or 2 of oil to the damper chamber in the piston, just enough to keep stuff from rusting. Remanufactured SU and Zenith Stromberg carburetors for: MG – MGA, MGA Twin Cam, MGB, and Midget; Triumph – Spitfire, TR3, TR4, TR6 and TR7; Austin Healey Sprite – 100-4, 100-6, 100M conversions, 3000, and Sprite including Bugeye MG TD TF 1500 SU Carb damper brass slide guide BBS discussion at MG-Cars. don't over fill. A carburetor dashpot prevents the engine from decelerating too quickly. 125) Chart Annulus area (mm2) Diameter (mm) Needle 1 Needle 2 Needle 3 SU Carburetor Topping Off the Damper Unscrew the piston cap and remove the piston assembly. Back off the idle screw to close one carb completely, and set the idle with the second carb only. Description: SU HD8. SU DAMPER OIL is a mineral based oil containing anti-corrosion and anti-wear additives for the lubrication of pistons and dampers in SU and Stromberg carburettors. Classic Mini . 1976 Corniche SU Carburetor Jet Dampers. The S. So whatever demands are puts on the engine, the SU accommodates them perfectly and delivers just the right amount of fuel. The design was in quantity production for much of the twentieth century. 3 product ratings 3 product ratings - SU Carburetor Damper Oil (2736) Jaguar SU HD8 Carburetor Dampers. it takes significant pressure with your finger to start it moving. Internet Price $29. The back piston stick at the very bottom. This fits all SU carburetors including but not limited to MGA, MGB, MGC, MG Midget, Triumph Spitfire, Sprite, TR3, TR4, TR6, Austin Healey. Jaguar Xke - $50. Prev. When I had a 1970s Alfa Spider with that lovely two litre twin cam and two Dellorto 40s, it never went out of tune. 5"SU as fitted on original 1990s 1275 Minis except Coopers with HIF44 carb, but was also used on some Metro HIF44 carbs. Impreza 2019 Door Assembly, Front 1821822. 25 Inch Hs2 Su Carburetor Spindle Kit With O-rings. Austin Healey . 04. Add to cart Details. We offer manufacturing of OEM parts for a number of different classic bikes. the throttle adjusting screws which adjust the idle speed and the jet adjusting Jun 11, 2019 · Restore lost performance with a new SU HS2 (1. insure the damper hole has a couple of squirts of oil in the pistons. 28 Order your Triumph Spitfire HS4 (1 1/2 inch) Carburettor Components - Dashpot, Piston, Spring and Damper - 1500 Engines only ⛽ Fast, worldwide delivery British car experts ♚ PayPal & other payment options ⚑ This type of carb is not easy to modify relative to a Weber-type which can me modified in ten-thousand different ways. With these hydraulic dampers speed in push-in and  Remanufactured SU and Zenith Stromberg carburetors for: MG – MGA, MGA Twin Cam, MGB, and Midget; Triumph – Spitfire, TR3, TR4, TR6 and TR7; Austin   Island Automotion Ltd. Jaguar 240 2483 2. 1 211 kr, More info · Dashpot lid (damper)  Penrite Carburettor Damper Oil is for SU and Stromberg carburetors incorporating a damper in the dashpot assembly. Make sure the fast idle screws are clear of the fast idle cam Haynes has an excellent manual just for SU carbs, it covers operation, theory, rebuild of all models, and has needle charts for hundreds of car/engine/carb set-ups. 87 Quantity in Basket: none S. Please Click For More Information · S. For example, the spring ensures that the piston is pushed downwards against the upward force on the piston of atmospheric pressure. Dump the old oil out of the damper if you haven't already spilled it. Wrong again, these carbs can be sealed to make the system work without going to Welcome to CVI Automotive AB, Sweden - Quality parts for Volvo Spare parts for Volvo classics The SU is really durable and with considerations made to condition and setup will do none of the above. For the Chamber And Piston Assembly and Cap And Damper Assembly, the 1500 and 1600 parts have different numbers, and the numbers changed with the model change. Jump to Latest Follow 1 - 20 of 33 Posts. 10. Sold Per: Each Estimated Quantity Available: 58. How many SU "rebuilders" engrave serial numbers on the throttle shafts? SU carb dashpots, plus general carb blathering. They also have a manual for Zenith-Strombergs, which, while similar, are a whole 'nother beast. 4 1967-69 - BRASS Non-Vented HEX HD DAMPER for HS6 1¾” SU Carb. Monday 21st March 2011. This item is supplied on an exchange basis. 42 $32. see Fig. Apr 29, 2009 · been running SUs on my scooters sence 1969,much more forgiving and easier to tune then a weber as was said riveara sells a very good carb thier KING CARB as they call it,love em instant h/p over most other carbs and u can modify them if so inclined spring very important along with oil in dampner,there r 3 main jets avail for the su with float * This is for HS4 SU’s- (1/8-3/16″) if you are dealing with 1″, H’s, HS2’s HS6’s, HIF’s, etc. Recent SU Carb Damper threads. , which has some resistance 1/4" before fully home and continues smoothly. Damper oil Top up each of the piston dampers with carburettor damper oil. The History of the SU Carburetter Origins The SU carburetter was the brainchild of the late George Herbert Skinner. Feb 15, 2007 · These are (were) available to tune the SU carb to the vacuum on a given motor, just as heads are rated for stage, 1, 2 or 3 for moderate, modified or race conditions. Nov 14, 2015 · Recent SU Carb Damper threads Sign in to follow this . Classic Mini Su Hif44 Hif6 Dashpot Damper Cap. giaraffa@optimumg. 62 and 63 Fig. 1936 and the company became SU Carburetters Limited. Factory recommendations may be motor oil, or special damper oil. Registered Office: Burlen Ltd, Spitfire House, Castle Road, Salisbury, Wiltshire, SP1 3SB Registered in England and Wales Registration Number: 2005550 VAT Number: GB 423 5232 84 Su Carburetters are The Worlds Sole Manufacturer of Genuine SU Carburettors, Fuel Pumps and Spares. 204 months. £39. 74 $10. 2. 95 Sprite and Midget Su Hif38 / Hif44 Wire Ring Circlip. Turn the carb over so the "needle holder" is up. 3 crank, it has a eaton m90 blower running at 7psi, it has one 2" HS8 SU with the highest flowing grose jet needle & seat valve, it has a KX needle wich is about as rich as i can get, very thin and fragile, i have just fitted a brand new needle and main jet becuase the last one was slightly bent. 'Triumph TR8 and SD1 V8 Carburettors and Carb Components' » SU Carb Specific Type Parts & Components Su PISTON/DAMPER Assembly Hex Polished Brass Cap Part# AUC8112HB More Details $33. About Us. duration range and carburetor changes, such as, substituting damper springs with P/N AUC1167 (yellow), Moss P/M 021-081 and installing richer metering needles (see previous text). Remove the 3 screws that hold the damper to the carb body. Always used 20/50 engine oil in them. A one-way valve runs in this, fitted to the end of the damper rod. 65. If not, check assembly again, make sure the piston isn't binding against the carb body, it should ride only on the damper shaft. 24 This product is not currently available. Nothing is listed for a spring in the Morris either - if its a side draft it may not have had one _____ Rover P2 Rover P4 Rover P5 & P5B SU HD8 Carburetor Damper Washer AUC5900. Many of us have touted our preferences and discoveries whilst playing about over the years. check the number on your old one. Float chamber levels in twin SU carb setups. Screwdriver; Spanner (adjustable); Spark plug spanner; Jet adjusting spanner ( early cars); Carburettor damper oil; Length of tube or hose; Carbalancer tool -  276278-292. This increases the partial vacuum at the fuel jet and so provides a temporary enrichment. The damper was slightly bent and I tried to straighten it up. The old SU’s had a little pot hung on the side, that being the fuel bowl. Even it's external appearance remained unchanged until the late seventies, early eighties - the classic illustration of a basic and simple concept that was very hard to improve on. auc8103 2. carb dashpot damper metro turbo hif44 Dashpot damper for the HIF6 METRO Turbo carb plus many other variants of the Metro. The SU carb is also sometimes referred to as a variable choke, constant SU carbs, enrichment of the mixture when accelerating is provided by a damper,  21 Jun 1983 The “Black Art” of S. Finding SU (Skinner Union) needles to make your car run right under all throttle conditions is a trying experience at best. SU website. A damper, in the mechanical engineering sense, is a device which exerts a force which varies with velocity (as opposed to a spring, which exerts a force which varies with distance). Internet Price $3. The piston has a hollow stem filled with oil and some carbs have a plunger (damper). The SU is a constant velocity carb. 60 Stromberg-carburettor on B2DA Hi welcome to my sale for a SU Carburetter HS2, HS4 HS6 Genuine Damper Cap Dashpot Washers AUC 4900. Wrong again, these carbs can be sealed to make the system work without going to The piston also has a hollow tube up the middle of it to hold an oil reservoir. Damper - Plastic Top 1965 - 1971* - Since 1976, Terry's Jaguar has been in the business of supplying a wide range of parts for Jaguars - everything from XK120, XK140, XK150 and all XKE / E-Type Parts models right through to the latest Jaguars on the road. Jun 08, 2011 · The SU carbs have been reconditioned (seals, needles, bushes) and adjusted (needle flush with piston rod face, jets centred, idle flow balanced, throttle opening synchronised, correct float hinge level, enough damper oil, etc). $28. May 25, 2018 · In this video, Ed D'Arata, Mini Mania's SU Carburetor genius, goes through the differences between the various SU Carbs found on classic Minis, Sprite & Midgets, and Morris Minors. Unscrew the black plastic cap at the top of each carburettor suction chamber and gently lift the piston and damper up to the top of their travel. 25") single carb to replace original one used on 850 and 998 Minis. Quantity in Classic SU Twin Carburettor CUD2952 Dashpot Damper HIF7 Jaguar XJ6 circa 1977. Weber Carburetor Soft Mount Kit. 30. This is intended to grow over time to become a very useful resource for all models of SU Carburettors, as fitted to many British classic cars such as Jaguar, MG, Morris, Austin, and more. This is due to the requirement to provide a richer mixture upon acceleration, which is satisfied by the restricted air opening created when the dashpot is struggling against the damper action. Reply The only part that need to be filled with oil is the central tube the damper (at the end of the part you unscrew) sits in and that's AFTER Aug 02, 2017 · · “Don’t use dashpot oil / no dampers / no piston springs” The SU carb is a precision instrument and every part of it is present for a specific and important reason. Jaguar '49-'50 Xk-120 Su H6 Carburetor Set 1 34 Auc 531 And Rare 3256 Float Bowl Classic Austin Mini Su Hs2 , Hs4 And Hs6 Dashpot Damper Cap. A heavier spring results in a richer mixture from off idle, lighter spring would be leaner, they’re color coded. Jaguar '49-'50 Xk-120 Su H6 Carburetor Set 1 34 Auc 531 And Rare 3256 Float Bowl Enthusiasts not familiar with SU carburettors may not be aware of the benefits of regular damper topping-up or what to do, so this note is a straightforward guide. Post by Freak » Sun Oct 19, 2008 3:00 pm. After much delay I have relaunched the Carb. carburetor-midget 1500. SU Dashpot Oil is suitable for use in pre 1940 SU carburettors, which do not incorporate a damper in the dashpot assembly. 95 Help: I have a sticking SU carb piston problem. The dashpot is a precision piece of machining that involves very close tolerances so that the piston doesn’t stick or bind when it rises and falls. Don't be fooled by the Haynes manual, the right clearance for the AUD331 carbs should be 0. 95 AH manual continued SU Butec manual continued 9. 21. The result was improved performance and economy. View. $50. This dashpot carb damper is for the HIF38 1. We have an extensive range of SU dampers available and below is just some that are available by size. The car has dual carbs and the front carb works well. The damper rods can occasionally get bent which will force the damper piston off center. skillshack. This product is not currently available. Jet Bearing Kits; Jets; Piston Springs; Return Springs; SU Carburettor Damper; Catalogues, Manuals & Books; Engine Components. This is for 125ML or around 4. SYNCHRONIZING THE CARBURETORS . Quantity in Basket: none S. If your Stromberg is over rich, runs poorly on closed throttle, or seems to consume damper oil faster than gasoline, then we can make it perform like new again. Carbs and parts are covered by a 3 year warranty. Take a soft drift and tap the holder in about 1/8" inch. HTML and Perl have been used to develop this database driven charting and searching tool. 52. The SU's dashpot has a fixed hydraulic piston, damping the main piston as it moves upward. Without needles, order needles below. Turn the piston back over, so you have it up like it's sits in the carb. EN 469-2 Carb idle screw springs, (2), Aftermarket $ 4. 12) Close the throttle on that carb and open the second carb’s throttle. In the right hands they can perform better than early versions of computer controlled systems. Please note : This item is supplied on an exchange basis. - check the spec for your carb. 1) After completing the second carb’s mixture adjustment, the carbs need to be synchronized. Twin SU Installation HIF means integral float, meaning the float chamber is made into the body of the carb. offers complete overhaul and rebuilding services for SU carburetors, and Zenith and Stromberg carburetors, as fitted to Volvo, MG, . Running rich, fouling plugs. Oil Pumps & Kits; Pistons & Rings; Ring Gears In the SU carburetor, the piston is guided by a bush fitted in the suction chamber and is a close fit, which is necessary to prevent excessive air leaking past the piston. Aug 09, 2017 · Genuine SU Service kit for minor rebuild of SU HIF44 carb as fitted to most 1300cc classic Minis and Metros, except Turbo. Sold Per: Each Results 1 - 48 of 1965 1 x SU HD6 Carb YELLOW DAMPER PISTON SPRING for DAIMLER Dart SP250 Sport 1959-64. If carb cleaner and silicone spray lube don't fix it, we will! Exchange and same day service standard (customer pays shipping). Both the spring and the oil damper directly affect throttle response, and should not affect the A/F mixture at any time if the carb is properly set up for the motor. 3 product ratings 3 product ratings - SU Carburetor Damper Oil Sep 16, 2018 · 11) That carburetor’s mixture adjustment is now complete. 211-345 . suction chamber. 2 Inch Carburetor Gasket, OEM $2. 95 Classic Mini Original Brass Type Dashpot Damper For Hs Su Carbs Fits single and twin HS2 carb dashpots but only single HS4 carbs. E. 3 in 1 is pretty similar to SU damper oil. To attach the tuning tool to the carburetor, simply remove the damper on top of suction chamber and insert the test rod into the hollow piston spindle. Perhaps for these reasons, British Leyland fitted late carburettor Mini Coopers and MG Metros with a single 1. We also offer custom work designed and manufactured specifically for your customization or restoration needs. Login The Stromberg 175CD (constant depression) carb is substantially different from the SU carb, although the operating principles are similar. ) Using the lifting pins check that the pis- Damper Gasket, SU HS Carbs (AUC4900) Price: $0. SU Carburetor Damper Oil Dashpot Oil Volvo Amazon 122 122S 1800 142 144 PV 444. 6 Liter Thermo 1950/53 SU 2xH4 AUC 556T GB/1450 6151 GB AUC1167 TS1500 NT-03 Classic SU Twin Carburettor CUD2952 Dashpot Damper HIF7 Jaguar XJ6 circa 1977. 20), lower the damper until the cap contacts the suction chamber, repeat this procedure until the oil level is just visible at the bottom of the retainer recess. The SU damper is not a poppet valve. Its purpose is to cause mixture enrichment needed for decent 'pick-up' when accelerating. The oil isn't going to get very warm in the dashpot, the carb is essentially refrigerated. A useful caution for fellow members is “make sure they keep the damper caps tight”. It is very reliable, but it can become dirty and choked — and some parts wear out. 15mm SU Carburetters The SU carburetter is a very simple device, but it does suffer from wear, and it benefits from regular attention. Regards. Do not strech the spring. Apr 18, 2016 · A quick snippet from our MGB service guide available at www. HB Damper. Rate and Review this Product. Only 2 left. It was often fitted to the Morris Cowley as a replacement for the Smiths 5 jet. 96. 24 new & refurbished from £39. Top up piston dampers with either special damper oil or SAE 20 engine oil to within 1/2” above the piston. Quite a few pre-war SU carbs as with Morris just had a plain cap and no damper as with my 1939 Rover 16. 60 results for mgb su carbs Save mgb su carbs to get e-mail alerts and updates on your eBay Feed. are used as safety and function elements in order to dampen speed and slow down masses. Tech Tip: Springs & Dampers, Part One The Phantom Knowledge By Matt Giaraffa matt. Brand: SU. On standard suction chambers (ie without a damper rod guide clip, or upper circlip on the piston rod), the level must be 0. Wrong again, these carbs can be sealed to make the system work without going to On older SU carburettors, which have a vent hole in the screw-in plastic top of the dashpot, the oil level should be i in. 1 of 2 Go to page. A/R This is a multi application product and fits most British Cars fitted with SU carburetor or SU fuel pump like Austin Healey 1953-1968 MG TC-TF 1945-1955, MGA 1955-1961, MGB 1962-1980, Triumph TR2-TR4 1953-1965 Jaguar '49-'50 - $1,099. At 07:10 PM 5/9/05 -0600, Earl Chilton wrote: "You mention that SU-H4 carbs with the side float will at times, have a minor leak. 61. $34. Use this handy guide to identify what carburetor is on your classic. If they are not level (by say, 4mm or so difficulty can increase as carbs become worn). Wonderful book for any British car owner wanting to _really_ tune their SU carbs. Kn Bolt . Jaguar '49-'50 - $1,099. You can measure it on kitchen scales - compress it inside the dome onto the scale pan. The lighter oils tend to run the carb on the lean side. SU Carb Dashpot Oil. Classic SU Twin Carburettors Carbs MG Magnette ZB . Brass Banjo Fitting for 3/8" BSF Banjo and 5/16 ID Bore Fuel Hose. Reassemble, check piston movement, raise it, then let go, it should fall freely. 370-745 CAP & DAMPER ASSEMBLY, brass|CAP & DAMPER ASSEMBLY, brass Book: SU Carburetor Tuning Manual. Joined Jan 19 HIF44 Carb Damper. So by going thinner on the fluid in an SU/Stromberg we would make the carb leaner on acceleration and by going thicker we’d make the carb richer. Sep 01, 2014 · The bottle shown in the test is labelled “SU Damper oil” so it should flow like any other SAE 20 at normal temperature – say 70 degrees Fahrenheit. Brand Jaguar '49-'50 - $1,099. Joined Feb This is the correct dashpot damper for the original HIF44 carbs fitted to 1990-92 1275cc Coopers Classic Mini Su Carburetor Dashpot Oil 125ml. Mar 03, 2018 · Notice that the dashpot dampers are mis-matched. The brass one on the rear carburetor is correct for the vehicle; it is unvented. 75" (MFA446) Price: $15. Carb Damper Dipstick, 72 240Z Code:11-2562 Price: $11. Jun 18, 2020 · Re: SU damper cap vented vs non-vented Sometimes : An owner would replace the plastic caps with the brass ones so when he polished his carbs he could also polish the caps , adds a bit of glitter under the bonnet . SU Carburetor Needle Searchable Selection Chart. 52 This product is not currently available. Image for DAMPER CARBURETTOR DASH POT Image for NUT LOCK IDLE SCREW SU CARBS. 12. Carburettor Tuning Tools · Float Bowls and Lids · Jet Bearing Kits, Jet Links · Jet Bearing Kits · Jets · Piston Springs · Return Springs · SU Carburettor Damper. Quality OEM SU Product. (13 mm) above the top of the piston tube. Another SU Carburetor Needle Selection Chart Zenith to Twin SU Carb Conversion (US 1500) More great info from Paul Tegler. The most common type of SU is the HS. Carburetor Jet Needle I have a few SU carbs under various old bonnets. It has a vent hole in the cap. 40 & 45 THIS PRICE IS FOR 1 (one) ONLY WHITE PLASTIC TOP DAMPER FOR CD150. Free shipping. Carb Needle Valve, Rear Carb, 72 240Z Code:11-2553 Price: $21. Original Poster. What you've done is put a gap between the needle holder and the star washer. But a friend who used to race 1 x SU HD6 Carb YELLOW DAMPER PISTON SPRING for DAIMLER Dart SP250 Sport 1959-64. May 14, 2009 · Hi, I think your car has the HIF6 carbie. I know its noob question but carbs are alien technology to me lol. This will create a drag or side force on the hollow piston rod and restrict normal piston movement. $13. Have your "Uni-Syn" type carb synchronizing tool handy. Apr 30, 2007 · su carbs are very forgiving, unlike a fixed jet carb going too big doesnt have much of a down side as given the correct springs they wil only open as far as needed so they wont suffer really low airspeed and poor performance compaireed to say a oversized weber or one with excessively big chokes in it The SU damper is intended to slow the piston rising, to enrich the mixture when you boot it, but should then drop easily back down with little or no damping. Used Twin SU Carburettors1 1/2" bore 3266 Number used su carburettor spring and damper in good used condition. SU > SU Carburettor photos and information Posts Welcome to the relaunched Carb. It has only one jet (except in a few special types) and very few moving parts. We also have a listing for most cars originally fitted with SU carburetors so please ask before buying to make sure we can supply what you need. AUD52E - MGB HS4 SU CARBURETTORS 1962-72 - PAIR - RECONDITIONED. THIS PRICE IS FOR 1 (one) ONLY PLASTIC TOP DAMPER. 176 posts. The only things that can be varied are the jet and needle valve, the idle mixture, and the damper oil! Of course, this means if you modify your engine, you probably will not need to modify your carb to compensate. 4b4023jaguar Nos Su Butec Mk10,420,xk150 Su Hd8 Auc8110 Carburetor Damper. Always worth having a spare, and sometimes only the best will do. --See AUC8103HB for the original brass type fitted to early single HS2" Sprite and Midget Plastic Dashpot Damper For Hif38 1. SU needle comparison chart - since 2003 Jet HIF38/HS2/HS4 (0. Austin Healey 3000 And Volvo 140 Su Hs6 Carburetor Kit Gaskets For 2 Carbs. 60; Buy It Now +C $20. Loosen one of the accordion clamps on the throttle shaft between the carbs so one carb can operate independently from the other. Now to synchronize the SU Carbs. 216 months Keep it up-right or all the damper oil will fall out and remove the grub screw holding the two horizontal carburettors of type SU-HS 6. If you click " Watch Product" you will recieve an. Zenith to Twin SU Carb Conversion (US 1500) Another conversion by Howard Baugues. an SU HIF44 (or HIF6) carburettor a suitable inlet manifold and studs a standard head/manifold gasket a heat shield to suit a HIF44 (make sure it has the clip for the choke cable) a ‘plastic’ spacer to fit between the heat shield and carb suitable SU manifold gaskets (3 off) » SU Carb Specific Type Parts & Components Su Suction Chamber Damper Piston Assemble, H, Hd, Hs, HIF4/6 Part# AUC8102 More Details $21. EN 472 Carb float, composite 1976 Corniche SU Carburetor Jet Dampers. Dave is correct. As for oil level, it should be 1/2" below the top of the damper tube. It took a bit of damper oil (8-10 drops each) to get the little plungers to momentarily stay up ½” or so before gravity slides them the rest of the way down into carb. No casting marks but is an SU HIF carburetor Took carb off & apart, cleaned it up, left most settings the same, added damper oil to the top of the carb. Sold Per: Each Estimated Quantity Available: 62. Quantity in Basket: none: S. i op up with engine 4-10 2NA09t Vehicles with emission control. When a driver depresses the gas pedal, the spring applies pressure to the shaft, causing it to close the throttle lever slowly. Last. ) Replace pistons and suction chambers making sure each piston and suction cham-ber are replaced on the original carb. Carburetter Company Limited also manufactured dual-choke updraught carburettors for aero-engines such as the Rolls-Royce Merlin and Rolls-Royce Griffon. In view of this, there is a good case for converting a Midget from twin small SUs to a single large SU. Solex Carb or SU Damper oil, available from some mail-order places. BentleyEight · Registered. The most common cause of fast idle is vacuum leaks. On dustproof SUs, which have a hole in the dashpot neck instead of the top, the oil should be i in. Invaluable rebuild procedures for different types of SUs. 4,988 posts. Top up the oil in the dashpot and see if you can feel the damping resistance when you try to lift the pistons; as long as that’s okay it’s no problem that the piston drops down. Genuine SU carburetter dash pot damper for the HIF44 carburetter fitted to the Rover Cooper 1275cc from 1990 to 1992. Wraithman · Registered. A FINAL WORD OF ADVICE. Top Rated Seller. So… it could be that the oil inside the bottle is not genuine SU Damper oil as supplied by SU Carb Co or maybe the ambient temperature was hot – say over 100 degrees F. Review of SU nomenclature: Recall that using the old imperial numbering system, the number after the HS is carb throat diameter, in 1/8" increments over 1 inch, so carb shown on left is actually an HS4 (1 1/2", and never used on B18 or later motors), also confirmed by the tall aspect ratio of the dome over its Dashpot. Please check fitment for your car before buying. In between efforts, I have found that the oil in the damper tubes is leaking down into the carb throats and fouling the pistons. Free postage. 5in (13mm) above the top of the hollow piston rod. If On some SU carbs, enrichment of the mixture when accelerating is provided by a damper, which slows the rate of rise of the piston when the throttle is opened. The carburetor must provide good atomization and the correct mixture strength under all operating conditions of the engine. Later models use SU copies made by Hitachi. 69. Carb Damper Dipstick, 72 240Z Code:11 -  Results 1 - 24 of 86 Get the best deal for SU Car & Truck Carburetors from the largest online selection at S. Take care not to bend the needles. 100) HS8 (0. Apr 14, 2011 · I've just looked through my SU needle charts and I can't find BDM listed. Carb Damper Piston V8 Su - CUD2901A This part may have multiple applications. Zenith Stromberg Genuine SU Carburetor Damper Oil Dashpot Oil MG, MGA, MGB, MGC, MG TD MG Midget. this price is for 1 (one) only brass top damper. su carb damper

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