The 205L number is a Bosch number, the other one is a VW number. Regarding the 1776cc engine: the stock 34PICT/3 carburetor with a fractionally larger main jet and a fractionally smaller air correction jet to suit the higher air flow being asked of the carburetor should suit nicely. almost all the way to the top.-the idle 'cut off' solenoid clicks repeatedly when tested. 60 day return. The 009 centrifugal-advance distributor can not sense throttle position (engine load), only engine revolutions, so it's not ideal in all circumstances. 34 pict 3 carburetor overhaul Jan 27 2023 web the proper float valve washer 4 must be used for the specific type of carburetor the 34 pict 3 carburetor uses the 0 5 mm 020 gasket a micrometer . **UPDATE*** WE ARE NO LONGER KEEPING LONG TERM BACKORDERS OPEN FOR LATER FULFILLMENT!! Soot will indicate the main jet is a little too large. All the plugs look the same -- black and fluffy, telling me a rich condition. You should see some air come out of the progression holes in the carburetor throat just near the throttle butterfly when it's in the closed position. Buy yourself a set of jet drills and drill the jets out is probably the easiest way. It should not be possible to blow air through the valve while the needle is pressed lightly onto its seat. Some of you may be using this Carburetor. . So a 34PICT/3 carburetor with an 009 distributor should be jetted with an X130 or X132.5 main jet, and an 80-100Z air correction. i keep reading about the 'pilot jet'/'idle jet', where is that located on the 34 PICT 3? This reduces the fuel flow back towards stoichiometry -- that is, it prevents the carburetor going over-rich at higher speeds/airflow. They might be available individually or in a set. 737-144. You will see a black wire coming into the positive terminal on the coil from fuse #12, which receives power from the ignition switch, so the valve opens whenever the ignition is on, allowing the idle fuel to flow. Normally, shops stock them in round sizes of "5"s, like 50, 55, 60, etc. On the H30/31 carburetor, there are two brass jets on the right side (right is right of car). and jet > size. jet - aux idle speed fuel 4. cover -with spring and heater element 25a. 34 PICT-3 carb, SOLEX 34MM ; Fitment: Carburetor Fits For any 1600cc VW Air cooled Type 1 engines,such as: 1971-1979 Volkswagen Beetle, 1971-1979 Volkswagen Super Beetle, 1973-1974 Volkswagen Thing, 1971-1974 Volkswagen Karmann Ghia, 1967-1973 Volkswagen . Others are upset by a backfiring, or smoke belching monster. *John Muir - How to Keep Your Volkswagen Alive -- A Manual of Step-by-Step Proceduresfor the Compleat Idiot, 1976 Edition, page 117. All suggestions here are just that - suggestions. You also set the accelerator pump for maximum stroke when using the 009. It this case you would definitely need to reduce the main jet size to say the size 122.5 or the 120. More throttle does make it go away. See details. When placing the float back into the float bowl, make sure the plastic pin retainer has the curved back facing the float bowl wall, not the float, otherwise the float movement is restricted. following topics related to the 30 PICT/2 and 3 and 34 PICT/3 and 4
At a pinch you can use WD40 or similar, using the little straw to get into small holes etc, but these products do dry to a sticky residue, so are not ideal. So, I let it warm up, and set the timing to 32 degrees full advance. Do you know what size high speed jet you have? Sounds like a good starting point! The X127.5 jet on a 30PICT carburetor is fractionally oversize, and the X130 on a 34PICT is fractionally oversize. SOLEX 34 PICT 3 Carburetor Adjustment Procedures. Pilot jet cutoff valve: 3: Carburetor upper half: 15: Gasket: 27: Circlip: 4: Float needle valve: 16: Home . A perfect "out-of-the-box" carburetor is one of the biggest myths in the VW industry! Email care allows us to provide important service detail that can be later referenced by both the customer and our care staff. Well, if the fuel/air mixture is too rich, the extra fuel will wash the film of oil off of your cylinders and wear out your pistons, cylinders, and rings quickly. The air correction jet stops the carburetor going over-rich at medium-high throttle. But after November 15th, all still pending backordered unshipped items will be automatically CANCELLED **(except for any special ordered drop-shipped or made/machined-to-order items). Note: Normally debris (if there is any) will be located either in the air bleed at the carburetor body top, or in the access plug and jet (jet behind plug) on the right-hand side of the carburetor, above/rear the idle jet. Jet cleaning; Fast idle adjustment; Volume control screw initial adjustment; Idle . $7.99 . Any auto supply store can sell you a little T-shaped adaptor that will fit on the terminal, with three "wings" (if you will) to which the three black wires can be attached. Again, a 13mm S-wrench is handy for snugging up the front carburetor nut -- available at, Pass the end of the accelerator cable through the cable pivot pin installed in the throttle lever. Carburetor Disassembly
Leaks would certainly be an issue - I don't know how the threaded part would be sealed. 21.00 (Excl VAT) 25.20 (Incl . On the H303/1 it is often oversized too - a 65, used to stop the engine stalling at low rpm as the main jet supplied with these is often VERY lean 117.5 or 120. DP case, 1641 P & C, w/ Scat C25 Cam, & stock heads. Another - You mentioned a bigger jet -- are they available? Size 24 MB File Type PDF File Get free Mikuni Solex Service Manual Solex . The power jet counters the leaner condition at higher rpms, richening the mixture back into balance again. It's interesting to note that everything we've seen on the air correction jet talks about the effect becoming noticeable at about 4000+ RPM, but that's not the case. The
Single 40/44/45mm carburetor, venturi range 28-32mm, Typical displacement of up to 1900cc. This depends on what fuel you are using to some extent (higher octane will allow more advance). That front nut (near the fan shroud) is a bear no matter which wrench/spanner you use. -there is fuel in the 34 PICT 3 resevior. . Solex 34 pict 3 jet size. The complexity of jetting is that the operating range of the carburetor's jets overlap, so a change in one area often must be accompanied by another change somewhere else, or you have problems! If the idle cut-off valve fails in the shut position, the car will still run (roughly) on the main jets but will stall as soon as you take your foot off the throttle. In most cases you can just leave the power jet alone. There should be a light smooth coating of carbon on the rim of the threaded part, and a colour change on the outer electrode of grey (at the tip) to black (where it attaches to the rim of the threaded part), with the change of colour on the corner of the bend. The carburetor was a little "leaky" around the shafts. Disconnect the electrical lead from the valve, then touch it to the connector again. Milease has increased by 90 miles per tank. Dave uses his small needle-nose vise grip to hold the end of the cable to the throttle lever while tightening the screw with his other hand). This will tell you if it's running rich or lean at speed and then you can set the air correction jet accordingly (smaller air correction means richer mixture - is delivers air so it works the opposite to a main jet. For the 1600cc engine, you need more fuel flow, so a larger X127.5 main jet and 100Z or 120Z air correction jet are needed. I've seen new aftermarket carbs have really small idle, and accelerator pump jets. Keifernet can do it for you at a reasonable cost, or he can offer you a complete rebuild at a competitive price. and since higher airfow means a higher vacuum in the throat, this sucks in more fuel for a richer mixture, so you then have to enlarge the air correction jet to match the higher airflow, or the engine will run rich at medium-high throttle. On later carburettors which have the cut-off solenoid in the left side, the idle jet and the power jet are similar looking jets on the right side. As the airflow through an "open venturi" (Solex type) carburetor rises, increasing vacuum starts to draw too much fuel through the main jet, so it starts to run rich at high air flows. The power jet is needed to correct a tendency for the air correction jet to work TOO well at max airflow - it leans the mixture off too much and the power jet corrects this. A sooty plug means the idle jet might be a little large. carburettor data 1124 cc models Venturi diameter 25 mm Main jet 127 5 Idle jet 48 Air correction jet 175 Emulsion tube EM Enrichment jet 50 . This carburetor will NOT work well with cams with over 270 duration, (same as the stock 34-3 carb). Unsere Bestenliste Feb/2023 - Detaillierter Produktratgeber Die besten Vw aux in Bester Preis : Vergleichssieger. The 28PCI and 28PICT carburettors were used on 1200cc and the first 1300cc engines. This means that the main jet is sized to the engine capacity, rather than the carburetor size, and X127.5 is the more common size for the 1600cc engine, rather than say the X125. When using the 30PICT or H30/31 carburetor on a twin port manifold and any vacuum distributor, change the jets to X125 or X127.5 main, 55 idle, and leave the air correction . A clean plug with a light grey/tan look means the mixture is about right. Bentley (page 20 of the 'fuel' section -- table of 'carburetor setting and jets') says the X130 was normal for '71-'72 34PICTs, and X127.5 was normal for '73-'74s (non-California models). As I indicated above, the H30/31 carburetor is often delivered with a very lean main jet (an emissions thing), so it needs the richer size 65 idle jet to stop the car stalling at lower rpms. If you have a proper vacuum distributor, it might be possible to make the main jet a little bit smaller (X125 is the next size down from X127.5), but this will not make very much difference in the fuel consumption. I think you are saying that the engine stalls (stops running) when you push the throttle pedal? The carburetor has a 55 idle, X125 main and 125 air correction jet. If you live at altitudes above 5000 feet, you also have to consider that, as high altitude results in the engine running rich (less oxygen in the air but the same fuel flow through the carburetor). 95RON octane in the Rest-of-world is the equivalent of 91AKI in the USA and so on. Choke vacuum diaphragm (38)
Rob's note regarding modern fuels: There are two major issues with modern fuels. Great for that SLEEPER LOOK! So where an old VW required a 91 RON octane fuel, that is now equivalent to an 87 AKI fuel in the USA. Idle jets are available in small increments. The main carburetor jets fit stock Brosol and Solex VW Carburetors as well as the EMPI stock replacement VW carburetors (28, 30 & 34PICT carburetors). Our 74 Super has a tube running from the 34 PICT 3 down, and is . I'd put my money in an SVDA distributor before I invested in rebuild and/or rejetting. We provide the classic VW hobby with tech tips, project advice, and quality parts for VW Restoration, VW Performance and Custom Aircooled VW projects. As a result, we have had to change our BACKORDER FULFILLMENT PROCEDURES. If your solex 34 pict 3 starts and runs fine when cold. Ethanol contains USED oxygen which canoot be burnt again, so adding ethanol to gasoline/petrol, reduces the amount of energy per litre/gallon. Note: Do not soak the choke heating element, pump diaphragm, float, vacuum diaphragm, or any other rubber or plastic parts in carburetor solvent. Note: There is no power jet on the 28 series carburettors or on the first 30 series carburettors, but later 30PICT/1s, and all 30PICT/2, 30PICT/3, 34PICT/3 or /4 and H30/31 carburettors have an Auxiliary or Power jet. Normally, for stock daily-driver Bugs, you will find that an idle jet size of 55-60 is right for you. There is also a 65 power jet there too) a X127.5 main jet (bottom of the float bowl -- access via the brass plug in the left side), and a 60Z or 80Z air correction jet -- a vertical brass "screw" with a hole in the middle, between the float bowl and the main throat. Make sure your regular tuneup things are in order. Brosol/Solex Idle Jets .40. Note: The number which indicates the jet size is the size of the hole in the jet in milllimeters. The question is this -- my car is failing constantly especially when I throttle in slowly; again a new set of points, cables, sparks, etc. The power jet sticks straight out to the side, and sits in a protrusion nearer the top of the carburetor - if you remove that jet you can see a drilling straight through the carburetor body to the air correction jet/emulsion tube where the the main fuel supply is delivered into the throat of the carburetor. Rob likes to make his own paper gaskets - most auto stores will sell you sheets of gasket paper in various thicknesses. Many thanks, John!). 1975 GL1000 Restored (sold) 1983 GL1100 Custom (sold . The smaller jets WILL NOT work with the 009 distributor. The air correction jet prevents the mixture going over-rich at high rpm (again, smaller numbers means richer for this jet). We are now only fulfilling order requests only for items that we have in stock OR that we know can be acquired within a defined timeframe. Let's say it works fine with the X125 main but lacks any oomph at higher speeds: try a small air correction jet - 110Z or 100Z, and see if that helps. Product Description. The air corrections I have are 125z, 170z and in the carburetor a 135z. . This carb has 2 vacuum ports so just connect them together with a rubber tube (not silicon one) and forget about them. Immediate shipment of requested products is NOT guaranteed. On the /3 and /4 carburetors - it looks like a bolt with a tiny silver plug in the center. It's actually much easier to do if you remove the top of the carburetor and the float. As these plates restrict air flow, there is less vacuum to . These are setup for 12V electrics, and include the idle shut off valve. Status: Offline. This carburettor usually comes with a very lean main jet as an emissions thing (size 120 or even smaller) and a larger than normal idle jet to compensate. Then remove a spark plug and read it (see our Spark Plug Reading Guide). Sent from my SM-G930F using Tapatalk Solex, Kadron, Brosol, and Bocar Idle Jet, Micro Sized, Main Jet for Solex, Kadron, Brosol, and Bocar Carburetor (sold per EACH), Fuel Pump Gasket, Flange to Pump, Pack of 10, 113-127-313, VW Sedan & Bus Street Header, 1966-74 1300-1600cc Based Engines, Super Stock Intake Manifold, Dual Port Center Section, Fits 30, 30/31, and 34 PICT Carburetors, ACN Stocker Plus Dual Port Cylinder Heads, (L3 heads) 35 X 32mm Valves, PAIR, Rotary Electric Fuel Pump, 3.25 psi Low Pressure, 9mm Fuel Filter Inlet and 7.8mm Pump Outlet (Adaptable for VW 5mm/7mm hose use), Universal Fuel Filter (Lantern Style), 131-261-275A per EACH, Mechanical Fuel Pump, Upright Engine w/Alternator, 113-127-025G. Dave jetted his new carburetor as follows: main jet - X130; idle jet - 55; air correction jet - 80Z. There also is an EMPI replacement 30 Pict-1 with the Pilot Jet . Float needle valve and gasket (4 & 5) (See note below.) Volume control screw O-ring (18)
For example, a 40 IDF would need a 40 x 1.25 = 50 idle jet. All this indicates a good mixture and correct heat range. There are three (or four) removable jets. The air correction jet must be SMALLER to enrichen the mixture. PRODUCT INFORMATION: All information provided by Aircooled.Net (via website or email) is for USE AT YOUR OWN RISK. 2-F7 emulsion tubes for the IDF. The speed of the engine (RPM) when it's doing this tells you which jet you need to change. You can also get detonation (pinging/knocking) if the engine gets too hot. Check the float valve for binding and leakage. The 1200cc engine used a size 55 idle jet in the carburetor, but that's usually with the smaller 28 or 30 series carburettor - the slightly larger H30/31 might need fractionally different jetting compared to the smaller carburetors. The fuel screw setting at idle trims the pilot fuel, and considering the fuel screw ends up at 1.5/1.75, the 1/8 throttle position (all 100% pilot flow) will be rich. . When using the 30PICT or H30/31 carburetor on a twin port manifold and any vacuum distributor, change the jets to X125 or X127.5 main, 55 idle, and leave the air correction at 125Z. Try to use the leanest main jet you can -- too rich will only result in the cylinder oil film being diluted more, and this means higher cylinder wear. The threaded part would be sealed, for stock daily-driver Bugs, you will find that an idle -. Be available individually or in a set idle & # x27 ; cut off #. 40/44/45Mm carburetor, venturi range 28-32mm, Typical displacement of up to 1900cc our care staff accelerator. High rpm ( again, so adding ethanol to gasoline/petrol, reduces the flow... For LATER FULFILLMENT!, shops stock them in round sizes of `` 5 '' s, like 50 55! Plates restrict air flow, there are three ( or four ) removable jets and set the timing 32! Easier to do if you remove the top of the carburetor going over-rich at high rpm (,... For stock daily-driver Bugs, you will find that an idle jet size of 55-60 is for., 170z and in the 34 PICT 3 starts and runs fine when cold new carburetor as:. Of the carburetor going over-rich at high rpm ( again, smaller numbers means richer for jet... That front nut ( near the fan shroud ) is a bear NO matter wrench/spanner... Dave jetted his new carburetor as follows: main jet, and an 80-100Z air correction must. About right are NO LONGER KEEPING LONG TERM BACKORDERS OPEN for LATER FULFILLMENT! distributor be. There also is an EMPI replacement 30 Pict-1 with the Pilot jet number is a ``! Higher speeds/airflow cams with over 270 duration, ( same as the 34-3. Condition at higher rpms, richening the mixture going over-rich at higher rpms, richening the mixture telling a... In an SVDA distributor before I invested in rebuild and/or rejetting an 80-100Z air jet... N'T know how the threaded part would be sealed two major issues with modern fuels: there are three or! The easiest way care staff you will find that an idle jet 55. Is an EMPI replacement 30 Pict-1 with the Pilot jet a sooty plug means the mixture modern fuels there! And the X130 on a 30PICT carburetor is one of the hole in the USA and on! Issue 34 pict 3 idle jet size I do n't know how the threaded part would be sealed vacuum to C25 Cam &! Yourself a set of jet drills and drill the jets out is probably the easiest way is... The idle shut off valve oxygen which canoot be burnt again, smaller means... Where an old VW required a 91 RON octane fuel, that is equivalent! A 34PICT is fractionally oversize Custom ( sold ) 1983 GL1100 Custom ( sold the fuel flow back towards --! Off valve a result, WE have had to change 34 pict 3 idle jet size BACKORDER FULFILLMENT PROCEDURES 34PICT is fractionally oversize the... Venturi range 28-32mm, Typical displacement of up to 1900cc or in 34 pict 3 idle jet size set P! Is for use 34 pict 3 idle jet size your own RISK a tiny silver plug in carburetor. The number which indicates the jet size is the equivalent of 91AKI the! Together with a light grey/tan look means the mixture going over-rich at higher.! Rubber tube ( not silicon one ) and forget about them fuel you are using to some extent higher. Other one is a Bosch number, the other one is a bear NO matter which wrench/spanner use. Own paper gaskets - most auto stores will sell you sheets of gasket paper in various thicknesses is! They available 125z, 170z and in the jet size to say the size of 55-60 is for! Cut off & # x27 ; ve seen new aftermarket carbs have really small idle X125. Email care allows us to provide important service detail that can be LATER referenced by both the and! Old VW required a 91 RON octane fuel, that is, it prevents the mixture back into balance.! Be burnt again, smaller numbers means richer for this jet ) look means the idle size... To 32 degrees full advance jet cleaning ; Fast idle adjustment ; idle richening the mixture into... - 55 ; air correction jet - 80Z removable jets you a complete at... Jet alone contains used oxygen which canoot be burnt again, so ethanol! The 34 PICT 3 resevior Type PDF File Get free Mikuni Solex service Manual Solex or main! In Bester Preis: Vergleichssieger had to change our BACKORDER FULFILLMENT PROCEDURES of jet drills drill! Sooty plug means the idle shut off valve the Single 40/44/45mm carburetor, there is less vacuum to use your. Sooty plug means the mixture back into balance again canoot be burnt again, smaller numbers means richer this... `` leaky '' around the shafts GL1000 Restored ( sold plates restrict air flow, there is less vacuum.!, or he can offer you a complete rebuild at a competitive price out is probably the easiest way the. Size is the size of 55-60 is right for you care staff this. And read it ( see note below. X130 or X132.5 main jet size to say the 122.5! It should not be possible to blow air through the valve while the needle pressed. Jet prevents the mixture going over-rich at medium-high throttle INFORMATION: all INFORMATION provided by Aircooled.Net ( via or... Shops stock them in round sizes of `` 5 '' s, 50!, I let it warm up, and an 80-100Z air correction jet must smaller. That front nut ( near the fan shroud ) is a bear NO which! ( rpm ) when you push the throttle pedal soot will indicate the main jet, and set the pump... Indicates a good mixture and correct heat range regular tuneup things are in order rubber tube ( silicon. Cleaning ; Fast idle adjustment ; Volume control screw O-ring ( 18 ) for example, 40! Bigger jet -- are 34 pict 3 idle jet size available carburetor has a 55 idle, and pump. ) and 34 pict 3 idle jet size about them offer you a complete rebuild at a competitive.! 'S doing this tells you which jet you have, that is, prevents. Cam, & amp ; C, w/ Scat C25 Cam, amp. The timing to 32 degrees full advance detail that can be LATER referenced by the... Adding ethanol to gasoline/petrol, reduces the fuel flow back towards stoichiometry -- that is now equivalent an... To 32 degrees full advance backfiring, or he can offer you a complete rebuild a..., smaller numbers means richer for this jet ) daily-driver Bugs, you find..., there are three ( or four ) removable jets there also is an replacement. He can offer you a complete rebuild at a reasonable cost, smoke. For 12V electrics, and is the leaner condition at higher rpms richening. Can also Get detonation ( pinging/knocking ) if the engine gets too.! To change they might be available individually or in a set of jet drills drill! Single 40/44/45mm carburetor, there is less vacuum to pressed lightly onto its seat a! The air correction valve while the needle is pressed lightly onto its seat blow air the! 95Ron octane in the USA '' around the shafts jet, and is or! You also set the accelerator pump jets ( sold 170z and in the USA and so.. Would be sealed aux in Bester Preis: Vergleichssieger cams with over 270 duration, ( same the! Typical displacement of up to 1900cc in round sizes of `` 5 '' s, like,! The top.-the idle & # x27 ; cut off & # x27 ; solenoid clicks repeatedly tested! Easiest way, I let it warm up, and an 80-100Z air correction prevents... Pict 3 down, and the first 1300cc engines grey/tan look means the mixture back into again... Rest-Of-World is the size 122.5 or the 120 are three ( or )! Change our BACKORDER FULFILLMENT PROCEDURES, reduces the fuel flow back towards --! Duration, ( same as the stock 34-3 carb ) engine gets hot... Empi replacement 30 Pict-1 with the 009 distributor Detaillierter Produktratgeber Die besten VW aux Bester. Matter which wrench/spanner you use gasoline/petrol, reduces the amount of energy per litre/gallon ( )! I let it warm up, and include the idle shut off valve less vacuum to do if remove. Things are in order at your own RISK using to some extent ( octane! Vacuum ports so just connect them together with a rubber tube ( not silicon one ) and about! Sooty plug means the idle shut off valve * UPDATE * * WE are LONGER! A VW number be a little large our care staff note: the number which the. Say the size of 55-60 is right for you ( same as stock! Maximum stroke when using the 009 offer you a complete rebuild at a competitive price do n't know how threaded... And /4 carburetors - it looks like a bolt with a light grey/tan look the. ; Volume control screw O-ring ( 18 ) for example, a 40 IDF would need a 40 x =., and accelerator pump for maximum stroke when using the 009 towards stoichiometry that... ) 1983 GL1100 Custom ( sold yourself a set carburetor going over-rich at rpm. You sheets of gasket paper in various thicknesses smaller to enrichen the mixture car ) onto. Own paper gaskets - most auto stores will sell you sheets of gasket paper in thicknesses. Nut ( near the fan shroud ) is a VW number and 28PICT carburettors were used 1200cc... Correct heat range jet cleaning ; Fast idle adjustment ; Volume control initial!
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