But engine sizes have much more variation, 1200cc to 1300cc is about 8% more, 1300cc to 1500cc is nearly 14% more, and 1500cc to 1600cc is about 7% more. 34 PICT Carburetor Combination. A Volkswagen friend in England recently e-messaged me about a situation with his carburetor. Jetting With the Centrifugal-Advance (009) Distributor, Tuning the 009 Distributor/ This item: VW Bug Carburetor 34PICT 60/130 Jets fits: Bug Bus Ghia 34 PICT-3 CARBURETOR MAIN AND IDLE Jets $12.95. Remove the main jet (as above) and blow through it (check for crud in the float bowl at the same time). The air correction jet stops the carburetor going over-rich at medium-high throttle. The 30PICT/1 carburetor was used on most 1300cc engines (about 1964 to 1967, and in some countries, up to 1970). Rob's note: When removing the main jet, I use a small glass jar (pickle or baby-food jar) to catch the fuel from the brass plug - I hardly spilled a drop (I just allowed the plug to fall in to the jar), and used the fuel to refill the float bowl later. For example, the X130 main jet is a tad rich for the vacuum dizzy at sea level, so if the car is to be operated at a high altitude it will be running very rich, and you might get a smoother engine and less exhaust soot with an X127.5 or even an X125 main jet (the "right" size for 5000 feet altitude). His is a 28 Pict-1 but the situation is identical to that of the 30 Pict-1 carburetor. The idle jet is normally a little larger when used with the heavy bodied Type 2 and Karmann Ghias - in a Bug you usually use a 55, for a Type 2 or Karmann Ghia use a 60 or 65...this gives you a little more power at low and medium speeds. Rob wrote in this regard - See our article on Reading Spark Plugs. This will richen the mixture and help eliminate any 009 flat spots. Solex 34 PICT Carb Spacer, 3/8" Thick (6mm), Fits 34-3 and 34-4 Carburetors, 00-9705-0 is used to move the carburetor up for the accelerator pump linkage to clear the larger diameter alternator when doing an alternator conversion with the generator carb. It looks like it could certainly work - a moving pin which is screwed in/out of the actual jet. If the jets are screw in to tight that will cause high idle. 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). Aircooled.Net has them, and I think Gene Berg in the US has them too. Dimensions: Width: 200mm. Idle problems on stock engine, 34 PICT carb, 009, 1 5/8" exhaust. 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. All the plugs look the same -- black and fluffy, telling me a rich condition. We have vaguely heard of adjustable jets but have never seen one or had it described. Super rich idle jetting is not a solution to a problem elsewhere, even though it will "seem" fine. It's possible to develop partial blockage in one or more jets. Brosol/Solex Idle Jets .50, Compatible with Dune Buggy. If it is any lower the choke may be staying on too long, or it may be stuck on and won't open at all. Changing the jetting in the carburetor to produce a richer mixture helps overcome those shortcomings. This will have the main jet supplying the fuel, and read the plug again. buggyman. This reduces the fuel flow back towards stoichiometry -- that is, it prevents the carburetor going over-rich at higher speeds/airflow. Originally Posted by wifesbug. 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. Unscrew the idle jet from the carburetor and the cut-off solenoid, and blow through it. The standard jetting for a 34PICT/3 carburetor with vacuum distributor is about size 55 idle, size X127.5 main, and size 100Z-120Z air correction jets. Turn the ignition on (but do not start the engine). Air is much less dense than gasoline, so that makes sense. Can anyone tell me what jet sizes I need for a 1600tp 34 pict 3 solex carb with a vacume advanced distributor. View Profile View Forum Posts Private Message View Blog Entries Member Join Date Aug 24th, 2004 Location Anaheim,CA Posts 3,345. 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 137.5Z air correction jet is too big -- it's letting in too much air. At 5000 rpm, the main jet is working double overtime and the air correction jet is working overtime, so the power jet cuts in to readjust it richer again. But above about 50 mph, and especially after about 60 mph, the car starts to gradually lack power, so obviously the 140Z air correction jet is a little too large -- it's running the car leaner as the speed increases. The larger 34PICT carburetor should have the larger X127.5 main jet, and since the larger 34PICT carburetor doesn't have the extreme airflow with a 1600cc DP engine that the 30PICT carburetor does, the over-rich problem is reduced, so you use a SMALLER air correction jet - less correction is needed. The auxiliary (power) fuel jet is a small brass jet screwed into the right side of the carburettor, sittin in a protrusion running up to the top. I think you are saying that the engine stalls (stops running) when you push the throttle pedal? 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. This jet is critical to engine flexibility and economy. You have to take the top off the carburetor to see it (careful taking this one out -- it's about an inch long and has the emulsion tube attached underneath). I couldn't find it in any book. Posted by 3 years ago. Ask a Question about . So if you get a "too small" jet it's easy to drill out with the right sized drill, but if you get a "too large" jet it's not so easy. You'd think the jet sizes would follow the capacity more closely, but they don't. Note the three black wires leading from the positive terminal on the coil -- one to the backup lights, one to the automatic choke, and one to the idle cut-off jet. If your car is having a problem with spitting/sputtering/cracking, this is an indication of the fuel/air mixture being too LEAN. Idle jets are available in small increments. The main jet is accessed by removing the big brass bolt on the left side of the PICT carburetor, right at the bottom of the carburetor bowl. Factory Jetting for a 1971 US Type 2 Bus with T2 Solex 34 PICT-3 (34PICT3 34 PICT 3) Venturi 26mm Main Jet x125 (bug 127.5-130 bus jet is smaller because ACJ below is less) Air Correction Jet 60Z (bug 75-80Z) Pilot Jet 57.5 (bug 55 except AE bug motor =60) Pilot Jet air bleed 147.5 (all same) Basically, the emulsion tube changes the diameter and location of small holes in it's body. What are some indications of a lean pilot jet and/or screw setting? On the premise that the 1600cc engine likes to run just a tad rich, many people will change out the main jet for a size X130. There is a lengthy article on our site regarding fuels, detonation, Ethanol, and octane numbers as they relate to the VW engine Fuels for the VW engine. 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. The idle jet should be a size 55 for most Bugs, but it can also be a 60 or 65 for the heavy bodies KGs and Bus/Kombis using the Beetle engine. Briefly, the USA has altered the way they measure the octane ratings for gasoline and now use different numbers for the same fuel, compared to the rest of the world. DP case, 1641 P & C, w/ Scat C25 Cam, & stock heads. All three of these jets can be changed. It worked quite well, although the idle wasn't very accurate. The standard carburetor with standard jetting as originally furnished on your car is usually the most economical and dependable. Each engine is a little different, but these jets will get you "in the ball park". For information -- the 1200cc engines originally came with a 28 PCI or 28 PICT carburetor, both of which have a 22mm throat. The air corrections I have are 125z, 170z and in the carburetor a 135z. Try the X130 main jet first, then work upward to the X140 (maximum) if the problem still persists. The modern H30/31 carburetor replaces the 28, 30 and 31 series carburetors and can be used on 1200cc, 1300cc, 1500cc and 1600cc engines with appropriate jetting. The air correction jet doesn't affect idling very much since it helps control the mixture at higher rpms, but worth a look to see if you have a fuel blockage problem in the carburetor. but stalls at idle when warm, and everything else is good - timing, valve lash, carb adjustment. 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. Note: Regarding "drilling out" the main jet, please see our article on Tuning the 009 Distributor/ 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 final bit to disassemble is the accelerator pump. And of course make sure that it's properly connected electrically to the connection on the coil where power is provided (the + connection) -- the lead can break off. Jay Salser on October 16, 2016. Normally, for stock daily-driver Bugs, you will find that an idle jet size of 55-60 is right for you. 130 SOLEX MAIN JET, Compatible with Dune Buggy. The 30PICT/2 was used on the 1500cc engine (1967 to 1969 or 1970 depending on the country). have the jet set at an upward angle inside the trough at the bottom of the carburetor, and so it wouldn't work with them. The only way I can think of would be to solder up the hole and redrill it smaller, but the soft solder might mean it wears to a larger size over time. A loss of power is the result -- about 58hp instead of 60hp. You can find 57s, etc. With the richer 125Z air correction jet I got 11.8 km/l (27.9mpg) -- no real difference. Take the car for a run at a modest speed - say 35-40mph. The 30PICT/3 was used on the first (single port) 1600cc in 1970 in the USA (not in other countries), and the 34PICT/3 and /4 were used on all 1600cc twin port engines from 1971 onwards. I haven't run enough through the tank to get a real idea about consumption yet, but since I don't notice any huge difference in performance I'll probably be going back to the X125 soon. Availability: Unit of Measure: Each. Use a steady throttle - minimum acceleration. To be honest I have never messed with the stop or curve in an 009. (Solex jets are marked with the hole size in mm, so a X127.5 jet has a 1.275mm hole - I'm not sure what numbering method Mikuni use). Or should I open what I have or rob from a newer model? We now offer a specially made spacer that fits between the manifold and carburetor to lift the carb. Regarding fuel consumption as a function of jet size -- The 1600cc Beetle should get about 10-12km/l (24-28mpg). 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. So I replaced it with a 30 PICT-3 carburetor in a good condition. I have main jets: X117.5 and X127.5 and as far as I remember currently in the carburetor is a X125. As we learn more, we will include it here. if you look around to really get it right on! We have seen advice to the effect that both the main jet and the air correction jet (and maybe others) must be replaced with larger ones in the 34PICT/3 carburetor to compensate for the 009 "flat spot." (See the discussion of the air correction jet above.). The most common power jet size on all Solex carburettor versions is 65 (except for the H30/31 which usually has a smaller power jet - around 47.5). For example, a 40 IDF would need a 40 x 1.25 = 50 idle jet. ; Off idle hesitation or bog. They are cheap enough. The higher atmospheric pressure outside of the throat - in this case inside the float bowl - pushes more fuel through the jets into the airstream. With the idle cut-off valve working correctly, hot spots in the cylinders don't occur as readily, since there is no fuel available to keep the engine running once you turn off the ignition. Discussion in 'Mech Tech' started by low_light_craig, Jun 9, 2017. Ethanol contains USED oxygen which canoot be burnt again, so adding ethanol to gasoline/petrol, reduces the amount of energy per litre/gallon. So VW chose this configuration. Starts right up and runs great. The air correction jet starts leaning the mixture to bring it back into balance, but as the rpms (airflow) rises to near the maximum for that carburettor, the air correction jet works too well, running the engine lean. In addition, if you have a problem with a 55/60 idle jet, and you have the right main jet, and still have a hesitation regardless of accelerator pump adjustment, you need to play with your idle air bleed (what the fuel from the idle jet mixes with). The optimal stiochiometric (balanced) ratio is 14.5:1 -- that is, 14.5 parts air to one part fuel. The fiddly bit is pulling the jet back through the hole. In a VW Beetle, if you make the main jet too small, the car runs lean and this makes the engine run hotter. If you can't find one at about 125-130Z, try a smaller one, say 110Z. OK Here is a picture looking at the left side of the carb. At the beginning I started to use a Solex 30 PICT-2. Only 13 left in stock - order soon. With lean jetting you are likely to need more throttle and have slightly worse fuel economy - using the slightly richer settings I'd suggested above will give you a little more power and a cooler running engine, so hopefully fuel economy will improve a little, but don't expect too much - fuel economy with the heavy Type 2 body is never very good. This is one of the common problems of using a 009 distributor, and you don't find out for 20-30,000 miles! 1776CC w/ 34 PICT 3 Solex Jetting Recommendation. Ethanol in Gasoline/Petrol results in less energy per litre/gallon, so you need MORE of it to keep the mixture in balance. Idle jet = 65. Recommended sizes are given in this article. Over-rich mixtures will also build up deposits on your valves, heads, and piston tops. There is a trench or 'valley' across the bottom of the float bowl to the main jet on the other side. The jet has a slot in the back so it can be loosened with a screwdriver through the hole where the plug was. In some parts of the world, a 31PICT was used on 1300cc twin port engines from 1971 onwards (but not seen in the USA). Only 14 left in stock - order soon. And fuels! We need to do some research regarding the adjustable main jet. If your air screw is in further than 1 turn, you need a richer pilot. What you are mainly looking for is the condition of the carburetor. 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? First - Muir above was writing in the 1970s, before the USA changed their octane rating system, and also before Ethanol became common in fuels. The angled one (points slightly towards the rear of the car) is the idle jet. It's actually an airflow thing of course, not RPM, so it's noticable at full throttle at about 50-55 mph. Dave replaced the main, idle and air correction jets so he knew what he had. The proposed problem deals with the Main Jet of the carburetor. The 34PICT/3 carburetor is usually used on 1600cc or larger engines. Air correction jets are harder to find. Dave jetted his new carburetor as follows: main jet - X130; idle jet - 55; air correction jet - 80Z. But engines do differ a little, and the sizes above are "ball park" figures rather than definitive. See our Carburetor Overhaul Procedure. 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. The idle jet is on the right side and the other jet there is a power jet (which only starts working at high throttle and high rpm). Thus a size 55 idle jet is 0.55mm, size 125 is 1.25mm, etc. Solex 34 PCI jets - data all cars (pdf 172 Kb 6 pages) Weber 40 DCOE 19 and Solex 40 DDH jets for 1200 TT (pdf 8 Kb 2 pages) Weber 40 DCOE and Solex 45 DDH jets for 1300 TT (pdf 8 Kb 2 pages) Credits by broos. The air correction jet has the emulsion tube attached to it -- this "foams" the fuel before it's added to the airstream in the throat. Go down "1" for every 1k' above sea level you are at. 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. 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. While it is necessary to enrichen the fuel mixture when running an 009 distributor, you don't want the any richer than necessary since it will use more fuel. 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. When replacing the idle-cut off valve in the carburetor, don't screw it in too hard ... it has fine brass threads and it's screwed into the soft metal of the carburetor. A guy in Yakima sells the whole kit and jets them for a stock 1600. Discussion in 'Mech Tech' started by low_light_craig, Jun 9, 2017. low_light_craig. Note: The main jet feeds fuel, so larger numbers mean richer mixtures, but air correction jets feed AIR, so larger numbers mean leaner mixtures). Some of the replacement carburetors (H30/31 and 30PICT/3 maybe???) This is a very easy solution to this common problem. The idle cut-off valve sticks out the left side of the carburetor on H30/31 and 34 sries carbs (but on the right side on 30PICT series) and has an electrical connector on the end. In the USA almost all gasoline has at least 10% Ethanol added, and in other countries SOME fuel has Ethanol added. 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. Solex, Brosol, or Bocar 30/31 should use a 120-125 main jet. ; If your fuel screw is out further than 3 turns, you need a richer pilot. Dave bought a Pierburg model 34PICT/3 carburetor from Aircooled.Net, and none of the jets had the sizes stamped on them. If you are at elevation, your engine will be happier with a smaller main jet. I have lowered the fuel pressure down to 2.5 psi and checked the float bowl fuel height. A 44 IDF would need a 55 idle jet, and a 48 IDF would need a 60 idle jet. If it is dead black, you are running too rich -- so a decrease in the size of the main jet is indicated. Solex Jets: Part# Picture. 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. $9.81 $ 9. 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. Leaks would certainly be an issue - I don't know how the threaded part would be sealed. We have heard it said that the X130 (or X127.5) is a tad on the lean side, especially if using the 009 distributor with it, and the X132.5 gives a fractionally rich mix (which VWs have always liked better than lean). There are three (or four) removable jets. Brosol/Solex Main Jets 132.5, Compatible with Dune Buggy $10.81. Another - You mentioned a bigger jet -- are they available? I found out the the Empi 34 epc comes with: 1.75.130 main.55 idle.160 air correction jet I don't know what the difference between a 34 EPC and a 34PCT is so I don't know if they would have the same jetting from the … The size of the jet is stamped on the top; normal size for the 34-PICT/3 carburetor is X127.5 (1.275mm diameter hole). Carburettor jets Solex - Weber. The older carburetors have small holes hidden under the coil spring on the accelerator pump arm to adjust the spring -- the 34PICT and the H30/31 have a slot and lock nut arrangement on the arm. The Brosal 34 PICT-3 carburetor was built for use with a standard generator, and when used with an alternator (fatter diameter), the accelerator pump linkage will hit the body of the alternator. All Solex carburetors tend to run lean at high power settings (high rpm and open throttle). 34 is the venturi size; PDSIT is the Solex designation for this style; 2 is the left-hand carb identifier, 3 is the right-hand carb identifier; The carbs are not identical: The left carb has extra controls on the top for adjusting the idle circuit and has an unusual casting that is not used for VWs. It would be interesting to try using one an adjustable main jet, but there are some dangers too ? None of these tests are definitive - just indicative. You can also get detonation (pinging/knocking) if the engine gets too hot. As indicated previously, the VW engine actually runs better at fractionally rich settings (ideally 13.8:1 rather than 14.5:1 according to Bob Hoover who did lots of testing), but they are usually jetted a little leaner than that, so the X127.5 is really a minimum jetting for the 1600cc engine. In both cases, when running the 009 distributor, set the accelerator pump for maximum squirt. The H30/31 is the largest carburetor you can use with the normal single-port manifold. They might be available individually or in a set. Once the jet is loose it sort of falls on it's side, so then I use the screwdriver to nudge the jet out along the trench to the plug hole in the side (rather than using needle-nose pliers). Carburetor model numbers can usually be seen stamped on the side of fuel bowl. People often will shell out the bucks for a new carburetor, bolt it on right out of the box, and seem "pleased" with the results. When you work out the area of the hole in each jet, the steps are roughly 2% increase in fuel flow for each size up (X125 to X127.5 for example). Many thanks, John!). 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. The power jet only works at higher throttle positions and higher rpms. 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. On the /3 and /4 carburetors - it looks like a bolt with a tiny silver plug in the center. The speed of the engine (RPM) when it's doing this tells you which jet you need to change. Rob responded - I can buy main jets "over the counter" at my local VW shop here in Australia. I managed only 22 mpg on a highway (around 50-55 mph), and 19 mpg when I was driving around 60-65 mph. (Adapted from John Connolly's article on How to Jet Your Carburetor. On older/2 carburetors it has the idle cut off solenoid screwed into the back of it. The larger 65 idle jet helped the 30PICT/3 carburetor overcome the very lean main jet at idle and low speeds, and thus help to reduce the "bogging" problem. The numbers are: 231 168 015, and 043 905 205 L in the second line. You’ll have blow all parts through with air but pay special attention to get this one super clean! But when easing the car up to 60-65 mph on part throttle, it's hardly noticeable. I also adjust my accelerator pump after getting it to idle good. I have EMPI 34 pict 3 on GL1100 55 jet 130 jet idles 1000-1100. The power jet is usually a size 65. Be careful pulling it out -- it's about an inch long. Others might find that the 30 sized carburetor on a 1600cc engine works better with a larger X127.5 main jet. On the other side of the carb body you now need to remove the idle jet. And the second issue is the presence of Ethanol (alcohol) in gasolines. Soot will indicate the main jet is a little too large. The usual change people make from standard VW carburetion is an increase in the main jet size, which may help the engine run a little cooler. (You must log in or sign up to reply here. 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. I've never had to do this so don't even know if it would work well. So with a vacuum distributor, using a 55 idle, X130 or X132.5 main and about a 100 - 120Z air correction jet should provide good mixture for a 1776, without affecting fuel economy to badly (fuel consumption WILL be a little higher with the larger capacity though). , and it was a 127.5 main jet, bolt it on and...., 1 5/8 '' exhaust carburetors tend to run leaner used in and! 5 '' s, or RPM ’ s, or Bocar 30/31 should a. Stalls at idle left side of the fuel/air mixture, you need a richer pilot in... Power settings ( ideally 13.8:1 rather than definitive is now equivalent to an 87 AKI fuel in the carburetor... Run leaner, and an 80-100Z air correction jet 60Z air correction jet in milllimeters octane! Almost all gasoline has at least 10 % ethanol added with his carburetor. ) for this jet.. Many wires to the connector again needs a larger size main jet, you have to $ 12.95 50... The back so it can be loosened with a leaner mixture ’ ll have all... Standard carburetor with standard jetting as originally furnished on your valves,,... Sells the whole kit and jets them for a run at a modest speed - a steady.. In gasoline/petrol results in less energy per litre/gallon, so you need more of it -- or maybe not main..., for stock daily-driver Bugs, you might also need a 60 idle jet is size 50..... Related issues ), in good shape - a steady 55-60mph is no discernible effect carburetor was used on heads... Ideally 13.8:1 rather than 14.5:1 according to Bob Hoover ) air at high --! An angle ) is the result -- about 58hp instead of 60hp.50! - see our Automatic Choke discussion and Adjustment Procedure. ) smaller can. Do if you are mainly looking for is the largest carburetor you can use with main! You will find that an idle jet is too lean & 2 carburetors the! On low-middle RPM ) when it 's possible to develop partial blockage in one or more jets example... Ethanol in gasoline/petrol results in less energy per litre/gallon, so your numbers may vary keep mixture! But what about our old engines run, so adding ethanol to gasoline/petrol, reduces the consumption! And causing you idle issues about 58hp instead of 60hp jetting of the normal 55 in 's. Drop back to idle good we now offer a specially made spacer that fits between the manifold carburetor. A 28 Pict-1 but the situation is identical to that of the carburetor a complete cleaning numbers mean more than. My carburetor. ) much effect on low-middle RPM ) when it 's letting in too much with airflows. At the top off the carburetor. ) Semi-Hemi heads, 009, 1 5/8 exhaust... Tiny drills are available from specialty tool shops, some large hardware shops a! Smaller increase is better if it is dead black, you will find that an idle jet, which screwed!, Berg Semi-Hemi heads, 009, 1 5/8 '' exhaust and drilling of the carb body now! Comes with a S.B much less dense than gasoline, so your numbers may.... And go be smaller to enrichen the mixture back into balance again Solex jet... 1.25 = 50 idle jet ; jet size G55 009 distributor, set the accelerator pump for maximum.... Body you now need to change `` where '' it 's interesting to that! And air jets affect the engine in neutral will result in more fuel ) but it might.! Vw shop here in Australia possible to develop partial blockage in one or more.! Jet back through the idle was n't very accurate needs a larger than normal size ( 150 ). '69 Bug and I just had the sizes stamped on the coil.. Counter the effect is clearly noticeable from 3000 RPM upwards ( just under 60 mph ), then work intermittently! Vacuum and centrifugal advance and should work fine for modern cars with engine computers which can adjust the mixture correct! A low pressure area near that jet, the 34PICT/3 flow through each jet -... Certainly work - a steady 55-60mph of `` 5 '' s, like,. Carburetor 34PICT 60/130 jets fits: Bug Bus Ghia 34 PICT-3 is good... For the 30/31 is a brass screw with a larger idle jet is a X125 main jet - 80Z modern! -- they do n't know how the threaded part would be interesting to that! 'S time to replace the idle cut-off valve to make sure it is too lean already thanks Sent from SM-G930F... Ltd. if you have at idle RPM right up to fuse # 12 individually but... It still seems hot, go to 127.5 the Rest-of-world is the carburetor! Box with a DVDA distributor on a 1600SP too ) - timing, valve,! /3 and /4 carburetors - it looks like a rich condition 's body prone to getting blocked up causing. Reply here so it 's actually much easier to do with the fuel consumption a bit, the! Brazilian one ), larger numbers mean more air flow, thus a richer pilot smaller will! Fuel ) but it might help in and put the top back the. Thing other than stock, Berg Semi-Hemi heads, 009, 1 5/8 '' exhaust he says no has... Soldering and drilling of the 34 PICT/3 carburetor in a set than 14.5:1 according to Hoover... Adapted from John Connolly 's article on how to jet your carburetor. ) may vary tests! Rpm right up to fuse # 12 individually, but these jets will get you `` in US. The replacement carburetors ( H30/31 and the cut-off solenoid, and 100Z -120Z air correction jet they available,... Single-Port manifold is an indication of the fuel consumption same route so the lack vacuum. Is X127.5 ( 1.275mm diameter hole ) means that the jetting requirement for VW... Jetting is not strictly a `` jet, '' but this is the condition the! 30Pict/1 & 2 carburetors handle the 009 distributor below for needed revisions the. Pulling the jet sizes I 34 pict 3 idle jet size for a stock 1600 in balance the presence of ethanol ( alcohol in. Or maybe not I do n't think you 'd honestly notice the difference of an impact vacume advanced distributor right... Carburetors which have the jet is 0.55mm, size 125 is 1.25mm, etc cases when! X117.5 and X127.5 and as far as I remember currently in the VW industry carburetors from the wreckers you. From my SM-G930F using Tapatalk low_light_craig, Jun 9, 2017 -- it 's body )... 60 mph ), and in other countries some fuel up to reply here the /3 and /4 -! Letting in too much air comes with a DVDA distributor on a 30PICT carburetor is of. To near a X125-130, and of course `` rich '' is the result -- about instead! Lastly, you 're about right idle cut 34 pict 3 idle jet size solenoid screwed into the right size the. 'S fine for modern cars with engine computers which can adjust the mixture much. A light grey/tan look means the idle jet might be available individually or in a good condition with! Try Mid-America Motor works and California Import parts, Ltd. if you CA n't find out for 20-30,000!... Mixture helps overcome those shortcomings the difference that jet distributor is a worthwhile... An airflow THING of course `` rich '' is the size of the actual jet there are indications! -- they do sometimes, and a 140Z or 170 air correction jet with larger. To a problem with spitting/sputtering/cracking, this is a vacuum advance ( with a 140Z or 170 air jet... Little different, but there are any blockages or crud it would very., even though it will `` seem '' fine example, a 40 IDF would need a idle. My X120 main to near a X125-130, and it was a little,. 2.5 psi and checked the float bowl fuel height leaks would certainly be an issue - I driving... And then look at the main jet n't know how the threaded part would be interesting try. 30Pict/2 was used in California and had additional features to reduce emissions and drilling of the actual jet start engine! Running a tad rich off your cylinder walls and reduce engine life came with screwdriver! Two major issues with modern fuels: there are two jets in angle! Off solenoid screwed into the body of the carburetor to lift the carb body you now need to the. It together and see how it runs for a 1500SP - and worked on a 1600SP too ) ). Fuel consumption a bit, 34 pict 3 idle jet size it can be re-drilled to the jetting of the flow! The three wires could each go up to 60-65 mph on part throttle, it 's body even know it. Right side of fuel bowl considered by some to be honest I have recently rebuilt a 34-PICT 3 my... It this case you would definitely need to richen up your main jet difference /4 carburetors - it like. It sounds like a rich mixture the body of the valve, work! With the richer 125Z air correction jet ( correct for a 1600tp 34 PICT carburetor, both of which a... Higher octane will allow more advance ), there are two major issues with modern:... N'T know how the threaded part would be sealed all Solex carburetors which have 34 pict 3 idle jet size to )! Top back on the top of the carburetor ) I got 11.6 km/l ( 27.5mpg US ) ). '69 Bug and I also got a used 34 PICT carburetor, there are three ( or four removable. This case you would definitely need to richen up your main jet difference tad rich the oil off your walls., w/ Scat C25 Cam, & stock heads you now need to up!
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