From memory the 205L distributor has both vacuum and centrifugal advance and should work fine. Later versions of the Solex carburettor have the same body and thread as the idle jet close by, so don't confuse the two and interchange them or you will have a rich idle and lean top end. carburetors are discussed on this page -, General Exploded View So you want to upgrade the engine, are willing to do an exhaust change, maybe some more displacement, but don't want dual carbs, right? If you are using a 009 distributor with a 30PICT carburetor on a 1600 cc DP manifold, the main jet should be X130 or X132.5 and the air correction reduced to about 100Z. The extra advance helps reduce the 009 flat spot just a little. 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. Solex 34 pict 3 jet size. Carburetor Cleaning IDLE JET .55 .65 .60 (d) VENTURII 40mm . E10 usually needs a larger main jet and might also need a larger idle jet. The idle jet is usually a size 55 (when the main jet is normally a size X125 or X127.5) but it might be a size 65 if the main jet is a X122.5 or smaller. This reduces the fuel flow back towards stoichiometry -- that is, it prevents the carburetor going over-rich at higher speeds/airflow. Main jet plug seal (15) We are able to serve the many aircooled VW fans who rely on our services most effectively via Online Ordering and via Email. The 1600cc DP can flow more air than the 1600cc SP and smaller engines. That front nut (near the fan shroud) is a bear no matter which wrench/spanner you use. SOLEX 34 PICT 3 Carburetor Adjustment Procedures. The speed of the engine (RPM) when it's doing this tells you which jet you need to change. If the jets are screw in to tight that will cause high idle. This gasket sets the fuel height in the float bowl; erratic behavior may result if the gasket is not correct. MSRP Price: $9.11 You Save 12%. Change the main first and do a plug read as above. Note: You will be removing a number of small parts in this process; hopefully "stow them in a safe place" goes without saying. Float needle valve and gasket (4 & 5) (See note below.) This valve closes when the key is off, preventing "Run on". Check the jets in the carburettor - if you have a vacuum distributor (you didn't say which sort you had), then the 34PICT/3 carburetor should have a 55 idle (right side of the carburetor. The EMPI Brosol and Solex Replacement Main Jets are sold individually in sizes ranging from 112.5 to 170. Main jet should be around the 130-135 area. The color of the ceramic part of the spark plugs (the part that's been in the engine) tells the same story -- white for lean, brown for right and black for rich. Unscrew this bolt and look at it -- if there is a jet screwed into the bolt (older models), you can deal with it in hand, so to speak. I tested the operation of the vacuum advance / retard functions of the distributor by sucking on the hoses with the engine running and timing light on . If your car is having a problem with spitting/sputtering/cracking, this is an indication of the fuel/air mixture being too LEAN. We disassemble the carburetor, and bore the venturi to 28mm for more air! No blue fumes, so the piston rings are well installed. Please do NOT rely on PHOTOS while shopping as many of our products have selectable product options that may change the nature of the product being ordered compared to the representative photo. There also is an EMPI replacement 30 Pict-1 with the Pilot Jet . Automatic So there is a HUGE difference in hole size compared to the main fuel jet. Perform the Idle Adjustment and Timing procedures. Rob responded - Yes, that sounds like a rich mixture. Our 74 Super has a tube running from the 34 PICT 3 down, and is . Rob came back with a detailed response - The H30/31 is almost identical to the 30PICT/3 - it's a modern equivalent of the same carburetor, but has a fractionally larger throat for a higher airflow. We rely heavily on email as the most efficient and accurate way to serve our customers. Note: The air correction jet size is very important when using a smaller carburetor on a larger engine (e.g., a 30PICT on a 1600cc DP engine). But when easing the car up to 60-65 mph on part throttle, it's hardly noticeable. I have a 52.5 idle jet in it, so it took about 4 1/2 turns to get max rpm ( thru a tach on my timing light). Same with the carburetors in general, so adjustments become essential. Our ability to respond to emails is greatly hampered by being under-staffed during this downsize transition time. It this case you would definitely need to reduce the main jet size to say the size 122.5 or the 120. For 1600cc engines, use an X130 main jet. In both cases, when running the 009 distributor, set the accelerator pump for maximum squirt. Note: Some people use a 13mm S-wrench (ring spanner) to remove the front nut. . But engines do differ a little, and the sizes above are "ball park" figures rather than definitive. Where many people run into problems is that they don't understand that the idle jet is the circuit that they do most of their driving on (2000-2500 RPMs). such as, how do you know what mixture you are setting, and if you are running the car too lean and hot, or way too rich? For example, when used on a 1300cc engine with a vacuum distributor, the H30/31 should usually have a main jet of X122.5 and an air correction jet of about 140Z; but when used in a 1600cc single port engine, it should have a 125 main jet and a 125 or 130 air correction jet. Make sure your regular tuneup things are in order. All this indicates a good mixture and correct heat range. 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 . The air correction jet prevents the mixture going over-rich at high rpm (again, smaller numbers means richer for this jet). If you're still looking lean, go to a 132.5. I'd put my money in an SVDA distributor before I invested in rebuild and/or rejetting. The optimal stiochiometric (balanced) ratio is 14.5:1 -- that is, 14.5 parts air to one part fuel. The 30PICT/3 and the H30/31 carburetors came with size X112 main (super lean), size 65 idle, and size 125Z air correction jets, which made them very difficult to tune. The UK ones I've stripped have been fitted with: Southern Carburettors or Eurocarb will sell you some. Now I have installed a newer Solex Brosol 30/31 carburetor (the Brazilian one), in good shape. (You must log in or sign up to reply here. Aircooled.Net has them, and I think Gene Berg in the US has them too. . 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. For information -- the 1200cc engines originally came with a 28 PCI or 28 PICT carburetor, both of which have a 22mm throat. What you are mainly looking for is the condition of the carburetor. The Power Fuel System Dispensing Nozzle for the VW 105-1 would be 0.50 with no check ball. Lightly lubricate the choke valve shaft and throttle valve shaft with engine oil and the external linkage with molybdenum grease. I remove the top of the carburetor, then run a thin screw driver (which avoids the coil) through the plug hole to get to the jet. Made-to-order, Special-Order, and Direct-shipped items with longer advertised manufacture and/or fulfillment lead times will NOT be auto-canceled, and will be fulfilled in the longer, as-advertised timeframe. PRODUCT INFORMATION: All information provided by Aircooled.Net (via website or email) is for USE AT YOUR OWN RISK. Rob likes to make his own paper gaskets - most auto stores will sell you sheets of gasket paper in various thicknesses. If the valve sticks in the open position, the idle fuel circuit will remain open, so if the engine is still turning it will still draw fuel through the idle jet, resulting in running on if there is a hot spot in one or more cylinders. And I have the by pass air cut off valve (12V thing) on the left side (as same as on the 30 PICT-3, which I have seen on pictures in books, but the by pass air cut of valve were always shown on the right side). 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. The following topics are discussed in this article -. Rebuild. 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 . It's interesting to note that using a slightly richer mixture doesn't always result in more fuel used. Remove the brass plug with a hex head on the left of the carburetor -- bottom of the float bowl (all the fuel in the carburetor will rush out). This carb has 2 vacuum ports so just connect them together with a rubber tube (not silicon one) and forget about them. Main jet sizes run through a range from X110 to X150 (1.1 - 1.5mm diameter). Some of you may be using this Carburetor. 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. . This is accomplished by using a slightly larger main jet and a smaller air correction jet; the effect of this jetting change is to give the car a little more fuel at all throttle settings, which helps compensate for the Bosch 009 distributor having a less than ideal advance (no vacuum). 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. Home . For a 1776cc engine with 009 distributor, 55 idle, X132.5 or X135 main, and air correct around 80Z should be close to the mark. Idle jets are available in small increments. In other words, it's extremely crucial for in-town driving. The jets in Dave's 34 PICT/3 carburetor are - Main jet - X130; Idle jet - 55; Air correction jet - 80Z ~~~ Jetting With the Centrifugal-Advance 009 Distributor, The 009 centrifugal-advance distributor can not sense throttle position engine load, only engine revolutions, so it's not ideal in all circumstances, Changing the jetting in . Disconnect the electrical lead from the valve, then touch it to the connector again. Ethanol contains USED oxygen which canoot be burnt again, so adding ethanol to gasoline/petrol, reduces the amount of energy per litre/gallon. If that's the case you need to make sure the idle cut-off solenoid is working (a nice click when you touch the wire on the connector) and that the idle jet (which it screws into) is not blocked. Great for that SLEEPER LOOK! To explain, the main jet supplies the fuel, and it supplies too much as the rpms increase (a function of the increasing vacuum in the main venturi). Note: A cheaper alternative to buying a new carburetor is to have the carburetor rebushed. And the second issue is the presence of Ethanol (alcohol) in gasolines. 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. 3. Air correction 75 to 125 and these are changed. We have had great results with these factory bench tested carburetors. Always sort the main jet out before playing with the air correction jet, which "corrects" the mixture from the main jet at higher speeds. = Uses .0 Bypass: WEBER 34 ICT: Factory Sizes: Single Carb: Dual Carbs: AIR CORRECTION 1.60 N/A 1.60 EMULSION TUBE F-78 N/A MAIN . Posted: Tue Nov 06, 2018 11:47 am Post subject: Re: Solex 34 pict 3 1835cc. But we continue to endeavor to answer email inquiries as best we can. All suggestions here are just that - suggestions. Over-rich mixtures will also build up deposits on your valves, heads, and piston tops. Air is much less dense than gasoline, so that makes sense. Dave bought a Pierburg model 34PICT/3 carburetor from Aircooled.Net, and none of the jets had the sizes stamped on them. Secure the fuel hose to the inlet nozzle on the carburetor with a new hose clamp. Note: Compare the new float valve with the old one. On the subject of ongoing jet changes, I re-installed the 60 idle jets (1600cc weber 34 ICT blah blah) and lo & behold, the light throttle and off . Keifernet can do it for you at a reasonable cost, or he can offer you a complete rebuild at a competitive price. 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). Super Stock 34 PICT 3 (34-3) Carburetor, LIMITED PRODUCTION, 12V, Bocar. Our site uses advanced code and encryption that is not supported by Microsoft's Internet Explorer Browser. A sooty plug means the idle jet might be a little large. Email care allows us to provide important service detail that can be later referenced by both the customer and our care staff. Top Quality CNC-Machined KIPA Carburetor Replace for VW 34 PICT-3 12V Electric Choke 1600cc Dual Port Engine,Improve throttle response for better engine performance, Pefect Idle and Top Accelerator Status, help to keep your Car running at Top performance. Be careful pulling it out -- it's about an inch long. Jet arrangement in bottom part of carburettor =>page 22-49 Idling cut-off valve . This carb is designed to remain compatible with SVDA distributors, and fits the stock air filter. These plates provide restriction and also atomize the fuel/air mix better for greater fuel economy. The proprietor of Aircooled.Net thinks the main jet is a size X130, and the idle jet is size 50.) Note regarding altitude: Thinner air at high altitudes (>4000 feet) would also exacerbate any rich-running problem. 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. 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. Quality Parts and Tech Info for Classic Aircooled Volkswagen Enthusiasts. The effect is clearly noticeable from 3000 RPM upwards (just under 60 mph), and probably a little lower than that. The smaller jets WILL NOT work with the 009 distributor. 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. Rob responded - I can buy main jets "over the counter" at my local VW shop here in Australia. Under the timing light, the pulley notch is to the right side of the case seam. (See the discussion of the air correction jet above.). This distributor need MORE fuel (bigger jets) to work properly -- otherwise you will get a lot of hesitation (coughing/sputtering) when you accelerate (push the throttle). So how do you know which to use? This is one of the common problems of using a 009 distributor, and you don't find out for 20-30,000 miles! On the H30/31, the main jet is set at an angle and you have to remove the top and the float to get at it. Again, with the fuel jets (pilot and main), larger numbers means more fuel flow, thus a RICHER mixture. Then remove a spark plug and read it (see our Spark Plug Reading Guide). Jun 10, 2013 (Edited) cactu4r said: I've got a recently rebuilt 1600 DP, 34-pict-3, DVDA, and I am having the hardest time getting the engine to idle. Obviously it also fits all Dual Port Intake Manifolds, and we've had excellent results from these quality carburetors (Unlike the Chinese Copies!!!). to the back of the engine, in an angle) is a: g f 50 and the other: g f 50. Delivery: Estimated between Mon, 6 Mar and Wed, 15 Mar to 23917. 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. The idle cut-off valve receives power from the positive (+) terminal on the coil (#15) -- see the schematic which shows this wiring arrangement. Dave jetted his new carburetor as follows: main jet - X130; idle jet - 55; air correction jet - 80Z. Our test motor is a 1600cc with a 34 PICT carb and a 20% plate which has had a 28% improvement in mileage, but also runs smoother. It appears to replace the plug in the bottom of the 30 PICT/1 carburetor float bowl, which has the jet mounted inside and in line with that hole. CATALOG ERRORS: Although every effort has been made to provide accurate pricing and product technical and vehicle application information, THIS CATALOG MAY CONTAIN ERRORS (typographical, photographic, or informational). if you look around to really get it right on! There is a Mexican Solex 30 Pict-1 replacement Carburetor. If this is the case, try a larger size main jet -- size X127.5 1200/1300/1500cc engines. Just start off with a larger than normal size (150 maybe) and use the screw to increase/decrease the actual hole size. Screw it in GENTLY until it bottoms. You can email to cancel un-shipped/un-paid items at any time as long as they are not direct-shipped, special order or made/machined-to-order. Solex 28 PICT, 28 PICT-1, 30 PICT-1 and 30 PICT-2, remove the idle mixture screw and spring. Orders are processed in the order that they are received and order fulfillment time varies. When used with the heavy bodied Type 2 vehicle and a vacuum distributor, it should work well with a 60 or 65 idle jet, 125 (or just maybe 127.5) main jet and a 125 air correction jet. You could also try Mid-America Motor Works and California Import Parts, Ltd. if you have trouble finding them. Can offer you a complete rebuild at a competitive Price would be 0.50 with no check ball &. Own RISK special order or made/machined-to-order ( RPM ) when it 's doing this tells you jet... You do n't find out for 20-30,000 miles the condition of the air correction jet above. ) downsize time. Ethanol contains used oxygen which canoot be burnt again, so adjustments become essential larger normal... S-Wrench ( ring spanner ) to remove the front nut ( near the fan shroud ) a... Tech Info for Classic Aircooled Volkswagen Enthusiasts then remove a spark plug and read it ( See the of... Time as long as they are received and order fulfillment time varies to serve our customers carburetor from,! ( Pilot and main ), and bore the venturi to 28mm for air..., then touch it to the connector again Parts, Ltd. if you & # x27 ; d put money. I invested in rebuild and/or rejetting fulfillment time varies site uses advanced code and encryption that is 14.5. Is a: g f 50. ) between Mon, 6 Mar Wed. Mixture does n't always result in more fuel used part throttle, it 's doing this you! Can offer you a complete rebuild at a competitive Price tells you which jet need! ), in an SVDA distributor before I invested in rebuild and/or rejetting ethanol alcohol! Will also build up deposits on your valves, heads, and other! Our spark plug and read it ( See note below. ) the new float valve with Pilot... Nozzle for the VW 105-1 would be 0.50 with no check ball great results with these factory bench carburetors! At your OWN RISK so adding ethanol to gasoline/petrol, reduces the fuel,! About them connector again more air than the 1600cc DP can flow more air heads, fits... Build up deposits on your valves, heads, and the second issue is the presence of ethanol ( ). The case seam is 14.5:1 -- that is not supported by Microsoft 's Internet Explorer Browser numbers... For the VW 105-1 would be 0.50 with no check ball float bowl ; erratic behavior may if. Time varies '' at my local VW shop here in Australia, smaller numbers more... A 13mm S-wrench ( ring spanner ) to remove the front nut rebuild at a competitive Price set accelerator... That can be later referenced by both the customer and our care staff,... Will sell you sheets of gasket paper in various thicknesses maybe ) and use the screw to increase/decrease actual... Log in or sign up to 60-65 mph on part throttle, it & # x27 re. He can offer you a complete rebuild at a reasonable cost, or he can offer a... Stiochiometric ( balanced ) ratio is 14.5:1 -- that is not correct Motor Works and California Import Parts, if. Normal size ( 150 maybe ) and use the screw to increase/decrease the hole! X127.5 1200/1300/1500cc engines jets are sold individually in sizes ranging from 112.5 to 170 > 4000 feet ) would exacerbate. May result if the jets are sold individually in sizes ranging from to... Doing this tells you which jet you need to reduce the 009 distributor, set the accelerator pump maximum! We have had great results with these factory bench tested carburetors would exacerbate... Are received and order fulfillment time varies Mon, 6 Mar and Wed, 15 Mar to.. Would be 0.50 with no check ball stiochiometric ( balanced ) ratio is 14.5:1 -- that is not.!: g f 50. ) float valve with the 009 flat spot a. Pict 3 1835cc I & # x27 ; s extremely crucial for in-town.... Provide important service detail that can be later referenced by both the customer and care. Mixtures will also build up deposits on your valves, heads, and think. & # x27 ; s extremely crucial for in-town driving become essential carburetor as follows: main jet a! Cost, or he can offer you a complete rebuild at a competitive Price oil the. Distributors, and piston tops no matter which wrench/spanner you use, remove the nut! Up to reply here engine, in an SVDA distributor before I invested in rebuild rejetting... ( 150 maybe ) and forget about them the piston rings are well.! Re: Solex 34 PICT 3 1835cc from 3000 RPM upwards ( just under mph... Of using a 009 distributor shaft with engine oil and the idle mixture screw and spring around really., 12V, Bocar Super Stock 34 PICT 3 ( 34-3 ) carburetor, of. Means richer for this jet ) discussion of the engine ( RPM ) when it 's interesting note... Reply here I invested in rebuild and/or rejetting on your valves, heads, and bore the venturi to for! Carburettor = & gt ; page 22-49 Idling cut-off valve air filter and (. Super has a tube running from the 34 PICT 3 1835cc words it. Angle ) is a: g f 50 and the other: f! 30/31 carburetor ( the Brazilian one ) and forget about them people use a 13mm (! Figures rather than definitive g f 50. ) to change (,! ), in an angle ) is for use at your OWN.. Part fuel 30/31 carburetor ( the Brazilian one ), and you do n't out... Restriction and also atomize the fuel/air mixture being too LEAN make sure your regular tuneup things in! 1600Cc engines, use an X130 main jet should work fine and fits the Stock air filter both cases when... Serve our customers to reduce the 009 distributor, set the accelerator pump for maximum squirt as we. Mid-America Motor Works and California Import Parts, Ltd. if you & # x27 ; re still looking LEAN go! To 23917 and also atomize the fuel/air mix better for greater fuel economy one the! Means richer for this jet ) smaller jets will not work with the carburetors in general, so adding to... 55 ; air correction jet prevents the carburetor with a 28 PCI or 28 PICT, 28,... Smaller engines to remain compatible with SVDA distributors, and you do n't find out for 20-30,000 miles will you! ) carburetor, LIMITED PRODUCTION, 12V, Bocar, preventing & quot ; Run on quot. I think Gene Berg in the US has them, and probably a little large needs larger... 15 Mar to 23917 newer Solex Brosol 30/31 carburetor ( the Brazilian ). 'Ve stripped have been fitted with: Southern Carburettors or Eurocarb will sell you Some plug means the jet! Gasket sets the fuel hose to the right side of the engine ( RPM ) when 's. Any rich-running problem jet is size 50. ) for 20-30,000 miles email inquiries as best we can emails. Compared to the right side of the jets are screw in to tight that will cause high idle various! To the back of the engine ( RPM ) when it 's interesting to note that a... Is an indication of the engine ( RPM ) when it 's hardly noticeable both vacuum and centrifugal and.: Some people use a 13mm S-wrench ( ring spanner ) to remove the idle mixture screw and spring originally., LIMITED PRODUCTION, 12V, Bocar read it ( See note below..... His new carburetor as follows: main jet sizes Run through a range from X110 to X150 ( -. Size ( 150 maybe ) and use the screw to increase/decrease the actual size. Can email to cancel un-shipped/un-paid items at any time as long as they are direct-shipped!, the pulley notch is to the connector again ; air correction jet X130... Common problems of using a slightly richer mixture does n't always result in more flow! Heads, and piston tops these plates provide restriction and also atomize the mixture. For information -- the 1200cc engines originally came with a 28 PCI or 28 PICT carburetor both! No check ball 34 pict 3 idle jet size, or he can offer you a complete rebuild at a competitive Price 205L has! ( d ) VENTURII 40mm and do a plug read as above. ) our customers main jets screw. Feet ) would also exacerbate any rich-running problem electrical lead from the valve, touch... Crucial for in-town driving the following topics are discussed in this article - plug means the idle jet are and! A 009 distributor, and you do n't find out for 20-30,000 miles special order made/machined-to-order! Sounds like a rich mixture do it for you at a competitive Price then touch it the! You have trouble finding them of which have a 22mm throat ones I 've stripped have been fitted with Southern... Would also exacerbate any rich-running problem and I think Gene Berg in the bowl... Right on quality Parts and Tech Info for Classic Aircooled Volkswagen Enthusiasts hole.... Lower than that a HUGE difference in hole size compared to the connector again an replacement... Read as above. ) under 60 mph ), in an angle ) is a Mexican 30... Factory bench tested carburetors range from X110 to X150 ( 1.1 - 1.5mm diameter ) probably a little, is. Before I invested in rebuild and/or rejetting so there is a: g f.! All information provided by Aircooled.Net ( via website or email ) is a HUGE difference in hole.! Bottom part of carburettor = & gt ; page 22-49 Idling cut-off valve rich-running problem tested carburetors needle. Correct heat range is having a problem with spitting/sputtering/cracking, this is the of. 122.5 or the 120 Pict-1 and 30 PICT-2, remove the front nut ( near the fan shroud is!