I have 4-5 I've collected over the years, and the smaller ones can be re-drilled to the larger sizes. This is one of the common problems of using a 009 distributor, and you don't find out for 20-30,000 miles! They might be available individually or in a set. EXAMPLE With the speed screw set at no more than one half (1 1/2) turns in after contact with the stop lever; and the best idle occurring with the mixture screw set at 3 turns from bottom, indicates the need for a . Carburetor-to-intake manifold gasket. 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. SOLEX 34 PICT 3 Carburetor Adjustment Procedures. If the jets are screw in to tight that will cause high idle. Someone wrote - I was advised to use a X125 main jet and 130Z air correction jet in my carburetor. 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. It's interesting to note that using a slightly richer mixture doesn't always result in more fuel used. 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 . 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 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. If anything is changed in this combination for performance gains, 99% of the time at least the idle jet needs to be increased to add fuel. does anyone have a link to a graphic that explains where it is on the carb? . 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 optimal stiochiometric (balanced) ratio is 14.5:1 -- that is, 14.5 parts air to one part fuel. The main jet can usually be removed without taking the top off the carburetor, but it's fiddly. Venturi Size. 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. I have checked my idle timing with the vacuum line disconnected and plugged, also checked high idle (5 @ Idle & 32 @ High Idle). The EMPI Brosol and Solex Replacement Main Jets are sold individually in sizes ranging from 112.5 to 170. The stock carb has a 26mm venturi. If it is dead black, you are running too rich -- so a decrease in the size of the main jet is indicated. nomenclature and part number (referring to the exploded view). I have recently rebuilt a 34-PICT 3 for my bus with a S.B. Take the car for a run at a modest speed - say 35-40mph. The standard jetting that the 30PICT/1 & 2 carburetors came with is size X122.5 or X125 main, size 55 idle, and size 125Z air correction jets. 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. to the back of the engine, in an angle) is a: g f 50 and the other: g f 50. A clean plug with a light grey/tan look means the mixture is about right. The main carburetor jets fit stock Brosol and Solex VW Carburetors as well as the EMPI stock replacement VW carburetors (28, 30 & 34PICT carburetors). Then tighten further according to the chart. 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. It is very easy to check the idle cut-off valve to make sure it is functioning properly. The smaller jets WILL NOT work with the 009 distributor. If it's working, you'll hear a clicking sound as the relay pulls in. Do not allow cleaning solvent to come in contact with skin. 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. Some of you may be using this Carburetor. Just start off with a larger than normal size (150 maybe) and use the screw to increase/decrease the actual hole size. In adjusting the carb, I've currently got the bypass screw out 3 turns, and the volume control screw out 4 full turns (sounds . A loss of power is the result -- about 58hp instead of 60hp. However we have found that a standard 13-mm combination wrench works just as well. For the air correction jet, larger numbers mean more air flow, thus a LEANER mixture. In other words, it's extremely crucial for in-town driving. It this case you would definitely need to reduce the main jet size to say the size 122.5 or the 120. 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 . Your Dunebuggy or VW Beetle will be up and running fast when you get your parts from AppletreeAutomotive. The old one for a pattern and a sharp hobby knife or box cutter works well. Carburetor Removal On the /3 and /4 carburetors - it looks like a bolt with a tiny silver plug in the center. Sorry! 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 . The carburetor was a little "leaky" around the shafts. Rob provided further explanation: The idle circuit is behind the main jet - the fuel flows THROUGH the main jet to get to the idle circuit. "As we discuss elsewhere, if you are running an 009 centrifugal-advance distributor with a 34PICT carburetor, you can minimize the "flat spot" by installing a slightly larger main jet (up from X127.5 to X130 or X132.5 for example), setting the accelerator pump for maximim squirt, and maybe increasing the idle jet size from 55 to 60. Also, running with a fuel mixture that is too rich will wash the oil off your cylinder walls and reduce engine life. Replacing the main jet in is super easy -- just put it in the hole in the side of the carburetor, then put the screw driver in after it and slide it along the 'valley' that runs across the bottom of the float bowl. Note: Dave found that NONE of the several top-to-body gaskets provided in the kit was the right size or configuration for his carburetor (he was possibly sent a kit for the earlier series carburettors). The Solex main jet is also identical to the main jet used on some Mikuni motorbike carburettors so you might be able to get jets from larger motorbike shops too (Kawasaki, Suzuki, Yamaha), but the hole would probably need redrilling to suit the required fuel flow. Then video is intended as an example.. SKU: 43-5050-7. That front nut (near the fan shroud) is a bear no matter which wrench/spanner you use. Leaks would certainly be an issue - I don't know how the threaded part would be sealed. SOLEX 34 PICT 3 Carburetor Adjustment Procedures. With a leaner 140Z air correction jet in the carburetor) I got 11.6 km/l (27.5mpg US). can find them - rare!). But engines do differ a little, and the sizes above are "ball park" figures rather than definitive. On the twin port engines, it has to be used with a 30/34 adaptor, since the twin port manifold has a larger mounting flange than the single port manifold. 737-240. I've never had to do this so don't even know if it would work well. Again, a 13mm S-wrench is handy for snugging up the front carburetor nut -- available at Aircooled.Net. Free shipping for many products! It's a problem VW recognized very early on (since the aircooled engine has very hot heads and hot-spots were therefore more likely than in water cooled cars), so the fix was to add the cut-off solenoid to the carburetors. Rob's 30PICT/2 carburetor had a 125Z air correction jet (correct for a 1500SP - and worked on a 1600SP too). If your car is having a problem with spitting/sputtering/cracking, this is an indication of the fuel/air mixture being too LEAN. much has changed in recent years. h 34 solex 32 34 z2 manual solex phh manual solex 32 34 pdf manual manual Download PDF Solex Ddh Service Manual File Size 24 MB File Type PDF File . Discussion in 'Mech Tech' started by low_light_craig, Jun 9, 2017. 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." 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. The biggest problem I have with it was the fuel consumption. The 30 series carburetors have a 24mm throat, and the modern replacement H30/31 carburetor has a 25.5mm throat. See our Carburetor Overhaul Procedure. 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. On the right side of the carburetor (as same as on the 30PICT/3) there are two jets in an angle. If you're still looking lean, go to a 132.5. . Secure the fuel hose to the inlet nozzle on the carburetor with a new hose clamp. I also adjust my accelerator pump after getting it to idle good. "Lean" means less fuel with the same amount of air, and of course "rich" is the opposite. The power jet only works at higher throttle positions and higher rpms. May 13, 2014 @ 5:57 am. You must do the opposite -- make the main jet a little bigger (X130 or X132.5) to stop the engine from hesitating when you accelerate. With the richer 125Z air correction jet I got 11.8 km/l (27.9mpg) -- no real difference. There also is an EMPI replacement 30 Pict-1 with the Pilot Jet . The main jet provides fuel from about 1500 rpm right up to maximum rpm. Solex 4a1 Carburetor Manual Best Version AN INTRODUCTION TO THE SOLEX 4A1 CARBURETTER SUPPLEMENT USB STICK (TSD4320USB) Quantity: Available : Despatched in 1 - 3 Days. (You must log in or sign up to reply here. There are three (or four) removable jets. The try the same test at a higher speed - a steady 55-60mph. I've used this particular carburetor with a 1600cc dual port engine and it works fine with the same main jet, but seems to like a fractionally larger X130 air correction jet (it runs a little rich with the X125 air correction jet). but stalls at idle when warm, and everything else is good - timing, valve lash, carb adjustment.
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