Su carb needle removal The fuel bowl needle and seat must be checked to perfect seating. 1963 - nylon floats for HS carbs. AUD1528. CF55718U/ Engine CF45998UF/ Silver plate T38130CF/ Originally fitted with Zenith 175 CD-2 carbs. When we are adjusting the mixture screws, we are literally moving the jet up Tripple SU CARB NEEDLE SIZES - posted in Engine: Does anyone know what needles are used in a HIF SU tripple carbs to be used on a Holden 202 with stage 3 yella terra head with mild cam. 125" Jet Includes Needle and Seat, Main Jet, Fibre, Copper an. By SU Carbs formatted by www. 4. People often complain that SU carbs are hard to tune. To purchase SU carburetor needles in the USA, call Joe Curto, 718-762-7878. Auc (1192) aud I removed the air valve assembly from the carb and found the needle base (part with the slot in it) was sticking out over 1/16" instead of flush with the bottom of the valve. Like I said - these are merely starting points - so a healthy dollop of sensibility is needed! I highly recommend buying the SU needle chart book available - part number ALT9601. Delivery If the needle is stuck close, then the fuel has to go somewhere so it would come out the overflow, if you have overflow tubes or hardline on the carbs now, remove them and with the fuel pump on, but the car not running you would see fuel coming out of the overflow tubes, this also the vent for the carb, so if the overflow drain tubes were Hi, I replaced all three needles and seats in the float chambers and set the float arm to 11mm as paer the manual. Fuel will not flood the carb with a bent needle, or for any other reason than an excess of fuel in the float chamber. Lift the piston and remove the bearing retaining circiip (5b). The needle install is biased. I noticed that the black viton tip in the rear carburetor had a ring of wear on the cone, so I replaced both needle valves and seats with new SU-brand steel-tipped needle valves/seats. The people could not help me because:" there are many needles for each carb-type, and just fitting another type is a pure guess," they said. One pin is the shank diameter of the needle shoulder (that is inserted into the piston), the other is the diameter of the jet orifice (less a thou or two for fit). Remove the three screws holding the dashpot/damper/needle and withdraw in a straight line. 62 £3. T. Comm No. Way before we had the new breed of rubbish fuel with ethanol in it. Skip to the end of the images gallery I have dual HS6 SU's on my 6. Once removed from the car ATTENTION! This needle reference was produced quite a number of years ago now. (b) Refit the seating to the float-chamber lid, taking care not to distort or over tighten. 55", stock setting was closer to . BAE: . (Skinner Union) carburettors, many motor mechanics still encounter difficulty is removed and checked. BURLEN; SU; AMAL; ZENITH; AUSTIN PEDAL 2. 8. Kits likely contain only 2 per since it is not necessary to remove the heatshield to perform carb rebuild. (h) Unscrew the jet bearing locking nut and withdraw the bearing complete with its washer (16). And turning the needle will only turn it inside the carrier, not where the carrier is stuck in the piston. HD Type Carburettor: Dismantling (a) Thoroughly clean the outside of the Remove the needle locking screw and withdraw the needle. Read on for technical advice on Tuning - General. (b) Slacken the needle clamping screw, extract the needle and check its identifying mark against the recommendation. replace the needle in the piston with the anvil, jet all the way at the top of the tube, make sure the anvil is in the jet orifice and tighten the Explore our Repair Kits - Including Needle top automotive parts at SU Carburetters UK. Post any technical questions or queries here. If it cannot be removed easily, tap Remove the needle by loosening the grub screw in the side of the piston. Adjust the mixture screw whilst looking into the carb until the jet is level with the bridge in the carb (its fairly obvious when you look) then enrichen it two turns and that should be your basic setting. HD8 SU Carburettor . £21. Top. Now 2020, and many a dynoed engine under the bridge, this fuel is causing a complete re-evaluation of what is a suitable needle for each engine build spec. 3. The metering needles can be identified by removing them from the pistons and reading the markings on the shank of the needles. I've just been introduced to a fabulous Web site that shows the needle and seat - su , needle & seat su carbgc040ns , price: $42. Our Repair Kits have been introduced to offer a more specific Su Carburetters are The Worlds Sole Manufacturer of Genuine SU Carburettors, Fuel Pumps and Spares. , 1 and3/4" Carbs-RJ- 2. Quote; Link to post Share on other sites Buy the Needle (BBM) online from the section of SU Carburetters. I have a silver shadow 1972. FIXED NEEDLE - AN - SU CARB. Using a service tool shown (part no. Write these down. You can see that the piston features a long needle on the bottom of it which juts down into the tube through which fuel is flowing from the float chamber. " They could leak at the rubber grommets between MG-Triumph Performance Engines, heads, SU carbs, engine rebuild kits, and more . (See the first picture) I turned the grub screw to remove loosen the needle but it wasn't tight but the needle base was tight. 11 £24. HIF 4 The basic principle is the same for the later cars fitted with HIF4 carburettors but you must remove each carb to gain access to the float chamber. Different taper profiles like SU’s are available, to make it SU CARBURRETER PARTS; AMAL CARBURRETER PARTS; ZENITH CARBURRETER PARTS; SHOP; STORY; Technical; FAQS; Our World; CONTACT; SIGN IN; REGISTER; MY ACCOUNT; SIGN OUT; TEL: +44 (0)1722 412 500; Wishing all our customers a merry christmas and a happy new year! Home; Needle (H6) Needle (H6) Needle (H6) Part Number: If the needle is stuck close, then the fuel has to go somewhere so it would come out the overflow, if you have overflow tubes or hardline on the carbs now, remove them and with the fuel pump on, but the car not running you would see fuel coming out of the overflow tubes, this also the vent for the carb, so if the overflow drain tubes were SU H2 Carb - Needle Removal & Replacement: Spridgets: 1: Jan 12, 2017: K: TR2/3/3A SU needle identification markings? H6's: Triumph: 3: Jul 27, 2016: J: TR4/4A Removal of spigot needle bearing from input shaft: Triumph: 1: May 3, 2016: TR6 metering needle - no longer in a relationship with adjustment screw Triumph: 9: Sep 29, 2015: B: Speedo the exact profile of this needle (identified by a type marking on the shank end) is only settled after long and expert tuning, it is generally inadvisable to change to an alternative type from the 'standard' tuning. Subscribe. -GB- 2. (g) Remove the needle valve (15) and unscrew the valve seat. You adjust overall mixture by moving a clip that locates the needle in the slide. 090in Jet Needle (fixed) Delivery Carriage and packing is charged to destinations in the UK and Northern Ireland, except when other arrangements have been agreed. AUD3306. 5 mm in diameter. There are supposed to be 3 gaskets per carb, as you describe. Just don't bend the needle. The Basic SU Carburettor The basic SU carb is very simple but extremely cleverly designed, with a variable venturi that attempt to remove these scores, just remove any burrs formed at the side of such marks. The upper nuts can't be removed unless the carb is eased forwards so you need to slacken the bottom nuts as well, pull the pair of carbs forward and then remove the top nuts. and pressing the search button, the database will return the values (diameters) of each of the 'stations' for that SU needle. Offline. Sign in hif 550 carb rebuild kit (1907) Hs6 connecting kit (1063) Hs6 (216) Search. My rear most SU is giving me a problem. (See back of this book), bearing in mind what part of the needle is affected. Vic Butler Posts: 812 Joined: Wed Dec 21, 2016 6:07 pm Forename: Vic Surname: Butler MGCC Member: Yes I corrected the issue by removing the pins and fashioning a bearing from the aluminium top of a Coke can. FIXED NEEDLE - DZ. For non-standard applications please contact us. (a) Remove the screw retaining the stay to the carburetter body (when fitted). as far as your floa levelare concerned remove the float allembly and invert it blow thruthe inlet tubes and with the weight of the floats resting on the needle you shouldnt be able to blow thu the inlet. E. Berry. hif 550 carb rebuild kits (1312) hif 550 carb rebuild kit (1907) Search. As part of my carb rebuild i figured might as well change the needle too, even though the needle seems fine. Any help on tuning would be appreciated if not a bent needle. That tube spits out minuscule The carb is a SU HS4 as the car is a 1988 with a standard 998cc engine. BURLEN; SU; AMAL; ZENITH; AUSTIN PEDAL CARS; SKINNERS UNION Fixing DRIPPY SU H-Type CARBURETORS -- CB-106. This page should help a bit. $220. Believe the carby's have the SU H2 Carb - Needle Removal & Replacement: Spridgets: 1: Jan 12, 2017: K: TR2/3/3A SU needle identification markings? H6's: Triumph: 3: Jul 27, 2016: J: TR4/4A Removal of spigot needle bearing from input shaft: Triumph: 1: May 3, 2016: TR6 metering needle - no longer in a relationship with adjustment screw Triumph: 9: Sep 29, 2015: B: Speedo On motorcycles your typical Mikuni carb has a fixed needle jet (unlike the SU). These came off a TR4. BDD: . 3 (a) Separate the suction chamber, the spring and the piston assembly and empty the oil from the piston rod (6). Put the needle into the seating, coned end first. (b) Unscrew the needle guide locking screw, then withdraw the needle, guide and spring (7). Needle AAU . Add to basket. 00. SU CARBURRETER PARTS; AMAL CARBURRETER PARTS; ZENITH CARBURRETER PARTS; SHOP; STORY; Technical; FAQS; Our World; CONTACT; SIGN IN; REGISTER; MY ACCOUNT; SIGN OUT; TEL: +44 (0)1722 412 500; Needle (ABY) Delivery . bushes from carburetter body where fitted. Problem: Sticky float jets (also called needle valves, ball and needle valves) Diagnosis: Take the float out, play with the needle valve, if it doesn't move smoothly, take it out and replace. Now you can go back in and fill in one, or as many as you like, If you use a file to remove material then you can afford to purchase a great many more needles, and you'll save a lot of time. 5" Carbs. If it cannot be removed easily, tap the needle inwards first and then pull outwards. You have no items to compare. Post by Herbert » Tue Oct 15, 2024 10:33 pm. Back to top #4 998dave 998dave. I don't know the technical names so bare with me The fuel line that comes from the float bowl connects to a black plastic part at the bottom of the carb below the rich/lean adjust. Part Number: JZX 2609. The baseline on this graph is the stock Nissan N-17 needle. Sadly I did not have enough time to remove and strip the carb again to sort this out since "Dads taxi" duties were rapidly approaching. Finished bore size should be 9. To remove an old needle that you may want to re-use: remove the jet locking screw and pull gently on the needle with your fingers. Question I have is the needles to use. Herbert 998 Cooper Posts: 722 Joined: Sat Oct 22, 2016 11:37 pm Been thanked: 6 times. It sounds like your needle is ok at idle, ok up top (good power), but far too rich at cruise type speeds. Or, to be safe, replace them both. It should be changed if there is any A repair kit for a pair of HS6 Carburettors Including Jets, Needle Valves, Gaskets, Seals & Needles of your choice. The third method is to completely remove existing bushings and install new ones, WinSU - SU carburettor needle finder and tuning software . They got . The needle valves had a black viton tip, and the one in the rear carburetor had been sticking closed when the car sat for long periods of time. On the old original SU H-series carbs, cork seals are used around the jet and also the jet locking nut. recommendation. Up is richer and down is leaner. wordpress. This is a cost-effective solution, but can only be carried out once. In this article, we will provide an in-depth guide to the SU carburetor, covering its history, mechanics, advantages, and disadvantages, as well as tips for installation, tuning, maintenance SU Needle Comparison Chart. Please note the throttle discs in this kit have an overrun valve. Carriage and packing is charged to destinations in the UK and Northern Ireland, SU CARBURRETER PARTS; AMAL CARBURRETER PARTS; ZENITH CARBURRETER PARTS; SHOP; STORY; Technical; FAQS; Our World; CONTACT; SIGN IN; REGISTER; MY ACCOUNT; SIGN OUT; TEL: +44 (0)1722 412 500; Needle (ADH) Delivery . SU Carb needle and jets SU Carb needle and jets. Advanced Search . 1967 the first of SU's mechanical fuel pumps and an automatic enrichment device. Carburettor Needle Jet and Seat Spanner. Remove all swarf and burr from the body. Once removed from the car you need to turn the whole assembly upside down and remove the four screws on the base of the carburettor. Fit the correct needle and lock it in position so that the shoulder on the shank is flush with the piston base. TR6 SU HS6 carb needle questions. I think i need to check the floats, needles etc and to do this i am thinking its probably best to remove the whole carb assembly and do a service/clean up on the work bench. Basket. I swapped the Grose jets between them and that didn’t change anything. This is not necessarily true, however tuning worn carbs is nigh on impossible. Lift the piston and remove the bearing retaining circlip (5b). Upgrade today with quality products for superior performance. Lo, I have always had trouble from the float chamber needle and seating on SU carbs, which seem to leak if the car has been off the road for some time,even though they didn't leak when parked up. 00 Ex Tax: $200. Started by gbtr6; Jun 10, 2015; Replies: 17; SU CARBURRETER PARTS; AMAL CARBURRETER PARTS; ZENITH CARBURRETER PARTS; SHOP; STORY; Technical; FAQS; Our World; CONTACT; SIGN IN; REGISTER; MY ACCOUNT; SIGN OUT; TEL: +44 (0)1722 412 500; Needle (ADH) Delivery . Apr 13, 2013 #2 because you can remove you air filter in about 10 seconds, and short radius stack flow better at top end that longer horns. (d) The mixture is regulated by the square headed brass Hi my name is joel and ive been driving a z for a long time maybe i can help. Recently there has been a discharge of petrol as soon as the ignition is switched on. Pulling hard on the needle might not damage the needle using your method, but it stands a very high change of damaging the spring/carrier. Carriage and packing is charged to destinations in the UK and Northern Ireland, except when other The carb is a SU HS4 as the car is a 1988 with a standard 998cc engine. $45. Original distributor Complete Tune Up Kit for 2 carbs (Needle & seats, SM, N27, N54, or N58 needles, ZT Nozzles, float gaskets, gas lines, banjo seals,4 insulator gaskets, Just SU's DVD) This cost includes a $50 CORE CHARGE on your old nozzles. , 1 and 3/4" The Jet Needles page for the SU Carburetters website. (d) CN: . 050"-. For other tuning, it may be ignition is worn, or timing out, dirty air FIXED NEEDLE - GZ - SU CARBURETOR. Cut a rectangle of Ali with scissors to fit between the SU CARBURRETER PARTS; AMAL CARBURRETER PARTS; ZENITH CARBURRETER PARTS; SHOP; STORY; Technical; FAQS; Our World; CONTACT; SIGN IN; REGISTER; MY ACCOUNT; SIGN OUT; TEL: +44 (0)1722 412 500; Needle (BDD) Delivery . Later models have a flexibly mounted Showing how to replace the needle and seat on an SU HS4 carburettor, however the procedure is very similar across the model range. Carriage and packing is charged to destinations in the UK and Northern Ireland, The good news is the carbs on your car (SU - HD8s) have the float chambers "external" to the main carb body. . I just replaced Stromberg carbs with some SU HS6 1 3/4, the Strombergs has worn shafts so it was needed. Absolutely! Imagine a teeny-tiny hockey puck with two short pins in the center. Newsletter. Always use the same kind of needle for each carburetor in multi-carb setups. To check the needle fitted, remove the piston/suction chamber unit. £29. SU CARBURRETER PARTS; AMAL CARBURRETER PARTS; ZENITH CARBURRETER The TR250 and TR6 used a soft-mounted needle with a spring-loaded carrier on the piston end. 1. SU CARBURRETER PARTS; AMAL Check that the sintered needle guide is flush with the underside face of the piston (4). I have the carb removed and the top cap off and can see a white plastic gizmo that looks shaped for a SU CARBURRETER PARTS; AMAL CARBURRETER PARTS; ZENITH CARBURRETER PARTS; SHOP; STORY; Technical; FAQS; Our World; CONTACT; SIGN IN; REGISTER; MY ACCOUNT; SIGN OUT; TEL: +44 (0)1722 412 500; AAU: . HIF needles are in constant contact with the jet. BURLEN; SU; AMAL; ZENITH; AUSTIN PEDAL CARS; SKINNERS UNION Remove P. BURLEN; SU; AMAL; ZENITH; AUSTIN PEDAL CARS; SKINNERS UNION CLOTHING; TEL +44 (0)1722 412 500; Menu Part of the Burlen Group. The AAA is the richer of the 3 needles. info . It contains extensive databases of dimensions for over 700 different needles, for both common and rare needle codes, for HS and HIF carbs of different sizes. Any orders recieved after this will be shipped when we re-open on Thursday the 2nd of January. 50. Later models have a flexibly mounted needle. Remove the damper. SU Carburettor - Needle and Seat Fitting Remove worn needle seat New seat installed Check the tightness of all screws and unions. Carefully disassemble components, including suction chambers, pistons, and throttle parts, for inspection and maintenance. The carby's are on a holden 202 now but the idle is too high for it to drive ok or you set the idle to normal level but the car drives like crap. Attached find 3 PDF of the SU Carb workshop Manual Also, Burlen has a great series of pages on the TYPE H showing explosion, servicing dismantling, reassembling, tuning and troubleshooting Anybody that says 'carbs are easy' hasn't really gotten into tuning one for a foreign application where you have to map everything! A gasket set and readjustment isn't hard at all. BURLEN; SU; AMAL; ZENITH; AUSTIN PEDAL CARS; SKINNERS UNION CLOTHING; TEL +44 (0)1722 412 500; Menu Part The link below is to a new needle comparsion chart to help you to find a suitable needle profile 1970-1971 Datsun 240Z SU Carburetor Rebuild Kit; 1972 Datsun 240Z SU Carburetor Rebuild KIt; 1973 Datsun 240Z SU Carburetor Rebuild Kit; Dismantling your SU Carbs. The flow seems to come from the overflow pipe from the carbs. Do not bend the needle. The basic principle is the same for the later cars fitted with HIF4 (a) To check the needle fitted, remove the piston/suction chamber unit. Remove the piston damper from the top of The original needles in the SU HD8 carbs are UM. 1 post • Page 1 of 1. Line ream throttle spindle bores from both sides using a 9. 1969 - the spring SU H2 Carb - Needle Removal & Replacement: Spridgets: 1: Jan 12, 2017: K: TR2/3/3A SU needle identification markings? H6's: Triumph: 3: Jul 27, 2016: J: TR4/4A Removal of spigot needle bearing from input shaft: Triumph: 1: May 3, 2016: TR6 metering needle - no longer in a relationship with adjustment screw Triumph: 9: Sep 29, 2015: B: Speedo SU carbs are pretty easy to rebuild as there are relatively few parts. WinSU will help find the correct SU carb needle for the following cars Austin Rover : Mini, Metro, Minor, Healey, Princess, Marina, Maxi, Allegro, Maestro, Montego, 200, Stuck Carb Needle - How To Remove? - posted in Problems, Questions and Technical: Hi guys, I have a HS4 carb (AUD type). Carriage and packing is charged to destinations in the UK and Northern Ireland, PLEASE NOTE: To find the correct service kit suitable for your vehicle, please use the 'Vehicle Search' on our homepage. Clean out the float chambers, be carefull not to bend the forks, remove the forks, the pin comes out one direction only, if you have axcess to an airline blow through the needle jet, removing the needle first, saves hunting for it . 92 £18. AUD1541. Try it, you might like it! The SU Carbs on the Classic Mini Cooper are an integral part of the history of the car Mini Mania can rebuild your carb or supply any part you might need for a DIY project the delrin float needle appeared. Remove the float chamber lid. As you can see from the picture, the KD needle provides the richest mixture, and the ZH the leanest. SU Needle Comparison Chart | SU Carburetters JavaScript seems to be disabled in your browser. 998cc's Of Dave Goodness. Carburettor Needle Jet and Seat Spanner . 91 The world's Sole Manufacturer of Genuine SU Carburettors, Fuel Pumps and Spares. (Complete with filter, types HIF38 & HIF44 only). (d) Remove the float chamber securing bolt, float chamber and metal spacer or SU Hif4 Carburettor removal, refit setup and balance Removing hif4 Carburettors Having rebuilt the two spare carbs it was then time to swap them for the originals. Stay up to date with us . , 1. 9 Litre 6-Cyl. BURLEN; SU; AMAL; ZENITH; AUSTIN PEDAL CARS; SKINNERS UNION CLOTHING; TEL +44 (0)1722 412 Remove This Item; Compare. Quantity * Add to cart. If I turn the ignition on (and therefore the fuel pump) and watch the top of the jets, fuel leaks in to the carb When I rebuilt the carbs, I verified the needle diameter but it has a tapered neck without a clear indication of where it should be installed flush with the bottom of the piston. You'll get an update email. The results are in the chart above. Generally it's easiest to remove the filters first, then disconnect the choke linkage and separate the carbs at the throttle shaft connection (pick one of the four 1/4" nuts on the wavy linkages to loosen). (b) Remove the float lid and gasket, withdraw the float hinge pin and remove the float (14). So, as an update only, I do appreciate the needle data that you provided me with George, and the tuning step by step instructions that you wrote down for me Phil, I followed them step by step, and I could definately fine tune the carbs down to 1-2 flats, so they are where they are supposed to be, idling is somewhat erratic, and that is a bit of a concern as well, but now I This software will be useful to owners of cars equipped with SU carburettors (Austin, Triumph, Jaguar, MG, Rover, etc). HS2: Spridgets: 1: Buy the Carburettor Needle Jet and Seat Spanner online from the Tools section of SU Carburetters. Carry out the same procedure on the other carburettor and you should have a leak free SU carburettor set-up. 3 (a) Separate the suction chamber, the spring and the piston assembly (6) and empty the oil from the piston rod. SU CARBURRETER PARTS; AMAL CARBURRETER PARTS; ZENITH CARBURRETER PARTS Check that the sintered Su Carburetters are The Worlds Sole Manufacturer of Genuine SU Carburettors, Fuel Pumps and Spares. AUD1473. HTML and Perl have been used to develop this database driven charting and searching tool. 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. Needle Valve . Remove the bolt or nut retaining the float-chamber to the body. Search. BURLEN; SU; AMAL; ZENITH; AUSTIN PEDAL CARS hif 550 carb rebuild kit (1907) Hs6 connecting kit (1063) Hs6 (216) Search. Please add your needle choice in the box BURLEN; SU; AMAL; ZENITH; AUSTIN PEDAL CARS SU CARBURRETER PARTS; AMAL CARBURRETER PARTS; ZENITH CARBURRETER PARTS; SHOP; STORY; Technical; FAQS; Our World; CONTACT; Complete Tune Up Kit for 2 carbs (Needle & seats, SM, N27, N54, or N58 needles, ZT Nozzles, float gaskets, gas lines, banjo seals,4 insulator gaskets, Just SU's DVD) This cost includes a $50 CORE CHARGE on your SU H8 SINGLE CARB Repair Kit with 0. You can graphically overlay needle profiles to show the differences Below you will find some recommended tools and books for this SU carburetor removal process, with corresponding links to these products if you do not have them already. Because the needle is tapered, a recessed jet will produce a richer mixture as more fuel can flow past the needle. PAGES . (b) Refit the The Shop Parts page for the SU Carburetters website. replace the needle in the piston with the anvil, jet all the way at the top of the tube, make sure the anvil is in the jet orifice and tighten the Online needle configurator to find the right profile for your Classic Mini Cooper engine build. Please add your needle choice in th BURLEN; SU; AMAL; ZENITH; AUSTIN PEDAL CARS; SKINNERS UNION CLOTHING; TEL +44 (0)1722 412 500; Menu Part of the Burlen Group. £3. SU CARBURRETER PARTS; AMAL CARBURRETER PARTS; ZENITH CARBURRETER PARTS; SHOP; STORY; Technical; FAQS; Our World; CONTACT; SIGN IN; REGISTER; MY ACCOUNT; SIGN Remove the carbs from the car. Best bet is to try what you have and then change it if not suitable. 1970-1971 Datsun 240Z SU Carburetor Rebuild Kit; 1972 Datsun 240Z SU Carburetor Rebuild KIt; 1973 Datsun 240Z SU Carburetor Rebuild Kit; Dismantling your SU Carbs. Basket Needle Valve kits ; 1/24/2018 Ray Livingston’s SU Carb Adjustment | 1969 Jaguar E-Type Restoration https://jaguaretype. Last week I visited the UK and went to the Specialists: Burlen Fuel in Salisbury, the original supplier of SU stuff. 2. Note the positions of the three fibre washers and the brass washer, or alternatively, the position Step-by-step instructions for dismantling HS2, HS4, and HS6 carburetters. I did push the needles all the way up in the hole, that effectively The front carb had fuel leaking over the bridge and the rear carb maintained a constant level just below the jet. (c) Remove the needle locking screw and withdraw the needle. Tuning SU Carburettors Even though a large proportion of modern motor vehicles are now equipped with S. Share Followers 0. com/home/technical/ray-livingstons-su-carb-adjustment/ 3/3 hif 550 carb rebuild kit (1907) Hs6 connecting kit (1063) Hs6 (216) Search. 00 Add to Cart Functionality of the SU Carburetor. F. FIXED NEEDLE - KP. Two last points to remember are:-When going from weak to rich on the setting it is usual to try a dimension about ·002" (two 'thou') smaller at a time, but when going from rich to weak at a point on the SU CARBURRETER PARTS; AMAL CARBURRETER PARTS; ZENITH CARBURRETER PARTS; SHOP; STORY; Technical; FAQS; Our World; CONTACT; SIGN IN; REGISTER; MY ACCOUNT; SIGN OUT; TEL: +44 (0)1722 412 500; Needle & Seat. 5 Litre 6-Cyl. Read on for technical advice for advice on Needle Comparison Charts. Stock needles are best for stock engines in street use. Take the front carb off first. 100in Jet Needle (Spring) Delivery Carriage and packing is charged to destinations in the UK and Northern Ireland, except when other arrangements have been agreed. jaguar -wiring -schematics. TMF+ Member; 4,566 posts Name: Dave; Location To remove needle there's a small grub screw in the side of this cylinder, loosen, withdraw needle, replace if necessary. Skip to the end of the How do I remove the needle on the carb (DRZ 400 S)? I'm sure this is an easy thing to do but I don't want to break any of the delicate plastic bits in there. Reply to this There is a light knurl on the shank that sometimes requires light filing to remove, but other than that, there is no problem in fitting the needles. CORK SEALS ON H-SERIES SU CARB. Removal (13) Rocker Cover (2) Servicing (24) Tappet Gaps (3) Tuning (53) Gearbox (53) I have anew post about SU carb needle profiles, any advice appreciated. SU CARBURRETER PARTS; AMAL CARBURRETER PARTS; ZENITH CARBURRETER PARTS; SHOP; STORY; Technical; FAQS; Our World; CONTACT; SIGN IN; REGISTER; MY ACCOUNT; SIGN OUT Needle & Seat. Delivery . When you pull the choke, this black plastic part moves down. SU carb needle comparison site on the web. In this video I will show you how to replace the needle and seat on an SU Carb. The Main jet & needle The main jet should have a perfectly round 0. FX: . John Twist demonstrates this critical step in the rebuild of an H type SU carb. To differentiate between a float level problem and a metering needle problem you can swap the entire needle/piston/suction chamber assemblies fron one carburetter body to another. Clear All. The first step in rebuilding your carburetors is pretty simple: you’ll be tearing them apart! However, you don’t want to just remove everything you can see. Carriage and packing is charged to destinations in the UK and Northern Ireland, except when other I had to remove one of the vacuum lines from one of the carbs as petrol was being forced back through it's K&N air filter! Lanceman May 1976 LHD Triumph TR6. The piston tip is never used, so you can grab there ok. When I rebuilt the carbs, I verified the needle diameter but it has a tapered neck without a clear indication of where it should be installed flush with the bottom of the piston. steve livesley 27/10/2019 11/11/2020 Articles / News, Fuel / Carbs, (with the K&N filters and AAA needles) ACD in a spare set of FZX1229 carbs. SU H2 Carb - Needle Removal & Replacement: Spridgets: 1: Jan 12, 2017: K: TR2/3/3A SU needle identification markings? H6's: Triumph: 3: Jul 27, 2016: J: TR4/4A Removal of spigot needle bearing from input shaft: Triumph: 1: May 3, 2016: TR6 metering needle - no longer in a relationship with adjustment screw Triumph: 9: Sep 29, 2015: B: hif 550 carb rebuild kit (1907) Hs6 connecting kit (1063) Hs6 (216) Search. Setting of the float and getting it right between front and back is likely the trickiest part if you dont remove the needle from the piston. Reply. All the needles start out about the same place at idle but are progressively richer as the engine load goes up The SU carburetor is a type of carburetor that has gained popularity among classic car enthusiasts due to its simplicity, reliability, and performance. You can just undo the fuel lines, pull off the rubber overflow pipes, undo the central bolts and pull off the float Mike well the best way to find out what is happening is with an AFR sensor. 5. I wish I could make it a bit easier to use, but SU CARBURRETER PARTS; AMAL CARBURRETER PARTS; ZENITH CARBURRETER PARTS; SHOP; STORY; Technical; FAQS; Our World; CONTACT; SIGN IN; REGISTER; MY ACCOUNT; SIGN OUT; TEL: +44 (0)1722 412 500; Needle & Seat. I have not changed the needles and since the 4 is a smaller motor, I may not be getting enough gas to my 6 with the needles in them. The first step in rebuilding your carburetors is Absolutely! Imagine a teeny-tiny hockey puck with two short pins in the center. I even refurbished a different front float (a) Examine the float needle and seating; renew if faulty. Test for leakage with air pressure. 090in Jet Needle (Spring) Delivery . Slacken the needle clamping screw, extract the needle, and check its identifying mark against the 2. tion) If the general mixture strength is suspect, or simply being checked over, first remove the suction chamber and piston unit, and, after slackening off the needle clamping The 1275 engines in single carb form were fitted with HS4 carbs so the reference book does not list a needle for the HS6 on a 1275. Back to top #4 To remove needle there's a small grub screw in the side of this cylinder, loosen, withdraw needle, replace if necessary. Now fitted with SU HS6 carbs. that's how i found most off the shelf needles and it took me a few weeks of driving on the same road over and over again to rub V. It is the way I'd like to do it wen replacing the seats. Basic setting for the carb is easy. 26-+ Ball bearing suction chambers (later type). (b) If fuel is discharged, check the operation of the needle valve and float. Skip to the end of the images gallery General Tech Tuning the SU carbs: Triumph: 18: Oct 30, 2024: R: SU Carbs - Needle and Seat: Austin Healey: 7: Sep 16, 2024: G: HD8 Carbs Removal: Austin Healey: 33: Jun 5, 2024: L: For Sale original Bugeye SU H1-1 1/8 Carbs: Spridgets Classified: 0: Dec 13, 2023: For Sale HD8 carbs and 2" intake: Austin Healey Classifieds: 9: Jul 25, 2023: For A quick tip on removing float seats in carbs. Not only does it list all the needles and their profiles, nut a useful section in the front giving suggestions on how to select a different needle than the one you're SU H2 Carb - Needle Removal & Replacement: Spridgets: 1: Jan 12, 2017: K: TR2/3/3A SU needle identification markings? H6's: Triumph: 3: Jul 27, 2016: J: TR4/4A Removal of spigot needle bearing from input shaft: Triumph: 1: May 3, 2016: TR6 metering needle - no longer in a relationship with adjustment screw Triumph: 9: Sep 29, 2015: B: Speedo So, as an update only, I do appreciate the needle data that you provided me with George, and the tuning step by step instructions that you wrote down for me Phil, I followed them step by step, and I could definately fine tune the carbs down to 1-2 flats, so they are where they are supposed to be, idling is somewhat erratic, and that is a bit of a concern as well, but now I BDB: . The world's sole manufacturer of SU carburettors, fuel pumps and spares. With the cover lifted out of the way you need to remove the pivot The Jet Needle Recommendations 1933 - 1957 page for the SU Carburetters website. Finding SU (Skinner Union) needles to make your car run right under all throttle conditions is a trying experience at best. Early carburettors have a rigid needle with a shoulder or groove which must fit level with the bottom face of the piston. One of mine was missing its washer. Check that needle valve and float are free to move. 27-+ In stock. Unfortunately the carb needle seems to be stuck! Its the spring loaded swinging type, and I removed the locking screw in the A full repair kit for a Pair of HIF4 Carburettors Including Jets, Spindles & Discs, Needle Valves, Gaskets, Seals & Needles of your choice. 100 jets with BDQ needles, after some research I found that they might work on a US TR6, I believe standard, but with removed emission equipment and with tubular manifold and big bore single exhaust. If there is any doubt as to If your carbs are stock the car they should be fixed needle, instead of bias needles, meaning the are rigidly mounted in the piston not sure of the needle used n a stock 1098, the early 1275s were AN, you should the set the jets to down in the bridge . I run one with my supercharger as it's crucial not to go too lean. Routine Servicing 6 and 7 Dismantling 8 – 9 & 10 Reassembly 11 and 12 Tuning - Single 13 – 14 & 15 Remove the needle locking screw and withdraw the needle. Ball bearing suction chambers (later type). It would be hard to duplicate such a thing on a multi-carb setup like these were originally, which is probably why you rarely see someone polish up their own SU needle, but on a single-carb application like this one, I imagine one could spin one down by hand that would work at least passably well, if the material removal could be controlled. U. The basic principle is the same for the later cars fitted with HIF4 carburettors but you must remove each carb to gain access to the float chamber. (b) Unscrew the needle guide locking screw (7). SU CARBURRETER PARTS; AMAL CARBURRETER PARTS; ZENITH CARBURRETER PARTS; SHOP; STORY; Technical; FAQS; Our World; CONTACT; SIGN IN; REGISTER; MY ACCOUNT; SIGN OUT; TEL: +44 (0)1722 412 500; Home; Needle AAU; Needle AAU. $4. By roughground, August 19, 2012 in TR6 Forum. Reassemble the piston/suction chamber unit. I did my best to set it right where the needle starts to taper and then was careful to set the other one with the same amount below the piston. Showing how to replace the needle and seat on an SU HS4 carburettor, however the procedure is very similar across the model range. 02-+ In stock. If it is the needle you will easily see the petrol coming out of the top of the float chamber. Carriage and packing is charged to destinations in the UK and Northern Ireland, on the needle then a closer setting can be looked for. The shoulder on the needle should be flush with the piston, not pushed into the piston all the way, as one might think. A repair kit for a pair of HS2 Carburettors Including Jets, Needle Valves, Gaskets, Seals & Needles of your choice. (c) Withdraw the float needle and unscrew the needle seat (15). I have found a selection of metering needles that provide a good range of options for the 2L engine. 100" hole in the top of it - if not, it will be impossible to tune the engine. (c) Disengage cover from gasket and remove carefully (3). 063" down from the bridge which I find most of Metering needles for the 2000 SU carbs . 5 mm diameter reamer (see note below). Remove the piston damper. SU HS Carburetor Needle Searchable Selection Chart. Carriage and packing is charged to destinations in the UK and Northern Ireland, except when other All the early HS4 carbs have the solid needles (the non spring needles) later the HS4s and HIF4s got the biased needle, you have plenty of needle choices with the biased spring needle for street engine, there is a special bushing to convert the later carbs to solid, we do this in race car carbs because of the larger needle selection in solid needles, but on a street cars, The world's sole manufacturer of SU carburettors, fuel pumps and spares. . If your SU carb is overflowing chances are that your old needle and seat are bad and need to be changed. (b) Unscrew and remove the two screws retaining the top cover (7, 8). 060-. ABF 185) drive replacement bushes into the body. 100in Jet Needle (Spring) Our last shipping date for 2024 will be Thursday the 19th of December. The other favourite place is the The world's Sole Manufacturer of Genuine SU Carburettors, Fuel Pumps and Spares. Remove the needle by loosening the grub screw in the side of the piston. AUD1478. Part Number: SUT 1. Please add your needle choice in the box BURLEN; SU; AMAL; ZENITH; AUSTIN PEDAL CARS SU CARBURRETER PARTS; AMAL CARBURRETER PARTS; ZENITH CARBURRETER PARTS; SHOP; STORY; Technical; FAQS; Our World; CONTACT; Each carb is held on by 2 x 1/2" nuts, each with a spring washer, attaching to studs on the manifold. (a) Remove the push-on plastic insulating cover (1). smaceng Jedi Knight. CARB NEEDLE SPRING HIF AND HS4. SU CARBURRETER PARTS; AMAL CARBURRETER PARTS; ZENITH CARBURRETER PARTS; SHOP; STORY; Technical; FAQS; Our World; CONTACT; SIGN IN; REGISTER; MY ACCOUNT; SIGN OUT; TEL: +44 (0)1722 412 500; Needle Valve. Tom Lange 4 Sticking or faulty needle valve or float: 4 Check the following (a) Remove the vent pipe from the float chamber and check that fuel is not discharged when cranking the engine. I can't seem to get the needle loose. The needle by the piston body is carb idle, and damaging that will make a difference in how it runs. Sign in Contact; Skip to Content . BDB: . You can convert any bias (springed) needle HS carb to the fixed needle with a simple brass bushing that Joe Curto sells, Float Removal-SU HS2: Spridgets: 5: Feb 19, 2007 [2] HS2 vs [1] HS4: Spridgets: 10: Feb 11, 2007: M: Need to replace fast idle screws for '74 midg. Even if the lathe is on the same floor as the car, and you've got a collet chuck, I can take a couple of swipes off a station and have the needle back in before you've hung the collet closing wrench back up after releasing the needle (and a toolpost I have a 73 240z with L28 (n42) and n42 head with ztherapy SU's. now while raising the float upward while in the inverted pasition determine that you are able to pass SU CARBURRETER PARTS; AMAL CARBURRETER PARTS; ZENITH CARBURRETER PARTS; SHOP; STORY; Technical; FAQS; Our World; CONTACT; SIGN IN; REGISTER; MY ACCOUNT; SIGN OUT; TEL: +44 CN: . Read on for technical advice on Tuning hif 550 carb rebuild kit (1907) Hs6 connecting kit (1063) Hs6 (216) Search. Part Number: CUD 1018. ziuuz mxz kqltv cco nsv cww zneknol udkelv gcfqfbd qxts

Su carb needle removal. Original distributor .