Note: Some people use a 13mm S-wrench (ring spanner) to remove the front nut. And fuels! Rob notes -- I have a 1500cc single port engine with it's original 30PICT/2 carburetor. Note: Regarding "drilling out" the main jet, please see our article on Tuning the 009 Distributor/
Single 40/44/45mm carburetor, venturi range 28-32mm, Typical displacement of up to 1900cc. Aircooled.Net, Inc. is in no way affiliated or associated with Volkswagen AG or Volkswagen ("VW") of America. Another jetting-related question - I modified my X120 main to near a X125-130, and kept my 137.5Z air correction jets. all make a difference in how our old engines run, so you might need to experiment a little. The 34PICT normally has a X127.5 main and a 140Z or 170 air correction jet. Dave has done so with good success. Basically, the emulsion tube changes the diameter and location of small holes in it's body. IDLE JET .55 .65 .60 (d) VENTURII 40mm . for IDFs, make the idle jet 1.25 the size of the throttle body. Classified ads, photos, shows, links, forums, and technical information for the Volkswagen automobile The extra advance helps reduce the 009 flat spot just a little. The 30PICT/2 carburetor has a fuel idle cut-off in the right side of the carburetor but the 30PICT/3 and the H30/31 should have an air idle cut-off in the left side for the carburetor (same as the larger 34PICT/3) -- that was part of the change to the /3 carburetor version -- moving the idle cutoff valve to the left side. Hey, use the stock jet size, which is 125 for the 34 PICT-3. ANY SINGLE THING other than stock, Berg Semi-Hemi heads, 009 distributor, extractor exhaust, etc. 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. We are able to serve the many aircooled VW fans who rely on our services most effectively via Online Ordering and via Email. If you look at the two jets you can see that the (angled) idle jet sits in a protrusion (channel) which continues downwards under the jet, towards the idle and transfer ports in the throat near the butterfly. 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 . Sent from my SM-G930F using Tapatalk 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. May 13, 2014 @ 5:57 am. 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. It this case you would definitely need to reduce the main jet size to say the size 122.5 or the 120. 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. ; Replace Part Number: 98-1289-B, 113129031K.Dual Port Manifold only, Not for single port. (Adapted from John Connolly's article on How to Jet Your Carburetor. But optimum performance and MPG will be achieved when you use a wide band and tune the carb for 16:1 A/F on cruise, and 13:1 over 1/2 throttle. That terminal on the coil is just a convenient place to obtain power to these components. This little ball bearing MUST be in place. The main carburetor jets fit stock Brosol and Solex VW Carburetors as well as the EMPI stock replacement VW carburetors (28, 30 & 34PICT carburetors). All information should be verified prior to use. 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. Peugeot 205 Manual . Location: Miami. Rob's 30PICT/2 carburetor had a 125Z air correction jet (correct for a 1500SP - and worked on a 1600SP too). 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. Every engine is different, so strongly consider getting our micro sized idle jets to really dial it in. More throttle does make it go away. by vwlover77 Fri May 05, 2017 6:58 pm. Jet-A-Vator. We have had great results with these factory bench tested carburetors. 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. If it's working, you'll hear a clicking sound as the relay pulls in. Now I have installed a newer Solex Brosol 30/31 carburetor (the Brazilian one), in good shape. if you look around to really get it right on! SUPER-STOCK-34-3. The carburetor idle circuit controls how much fuel you have at idle. In both cases, when running the 009 distributor, set the accelerator pump for maximum squirt. Thus a size 55 idle jet is 0.55mm, size 125 is 1.25mm, etc. 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. Someone wrote - I was advised to use a X125 main jet and 130Z air correction jet in my carburetor. 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). Then video is intended as an example.. Another question - The car runs terrible but it runs. The following topics are discussed in this article -. Re: 34 PICT 3 Adjustment Woes. The last three carburetors are more sensitive, and so the lack of vacuum advance on the 009 makes more of an impact. FreeShipping. and jet > size. We disassemble the carburetor, and bore the venturi to 28mm for more air! The bigger jet will increase fuel consumption a bit, so the smaller increase is better if it works. 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. 2-F7 emulsion tubes for the IDF. The timing is set ATDC. to start at sea level. The /4 version was used in California and had additional features to reduce emissions. 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. See our Carburetor Overhaul Procedure. 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. Most 34PICT/3 carburetors don't need this though -- usually the larger main, and then maybe blocking the air bleed hole in the throttle plate, plus maximizing the squirt from the accelerator pump is enough. vegas for ICTs, you need a 57 or 60 idle jet; for IDAs, the idle jet you need will depend on whether your carb has 2 or 3 progression holes. 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. All Solex carburetors tend to run lean at high power settings (high rpm and open throttle). $7.99 . The back one (pilot?) Others are upset by a backfiring, or smoke belching monster. 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. Normally, shops stock them in round sizes of "5"s, like 50, 55, 60, etc. Idle Shut Off Valve, 34-3, 34-4, and 34 PDSIT 2/3 Carburetors, 049-129-412C Is the valve on the side of the carburetor that provides air to the idle circuit. PRODUCT IMAGES are representative only. Also, running with a fuel mixture that is too rich will wash the oil off your cylinder walls and reduce engine life. 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). The adjustable jet would work with any of the Solex carburetors which have the jet mounted horizontally inside the carburetor. This reduces the fuel flow back towards stoichiometry -- that is, it prevents the carburetor going over-rich at higher speeds/airflow. In either case, spending the time to properly jet your carburetor is a very worthwhile task. Rob responded - A X120 main jet would make it run leaner, and it sounds like it is too lean already. The power jet counters the leaner condition at higher rpms, richening the mixture back into balance again. (See the discussion of the air correction jet above.). **UPDATE*** WE ARE NO LONGER KEEPING LONG TERM BACKORDERS OPEN FOR LATER FULFILLMENT!! Rob wrote in this regard - See our article on Reading Spark Plugs. Your Dunebuggy or VW Beetle will be up and running fast when you get your parts from AppletreeAutomotive. Disconnect the electrical lead from the valve, then touch it to the connector again. The 34PICT/3 carburetor is usually used on 1600cc or larger engines. 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. We sincerely appreciate your patience while we are doing these site upgrades. Remember on the 34PICT-3 the idle jet affects drivability and power up to about 2,000 rpm when the main jet takes over. 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. 55 idle is fine. But if you find a solid brass bolt, the main jet is further in the float chamber (later models) but still right in the back of it on the right-hand side. 2060 Solex Pierburg Kadron idle jet; 2056 Solex Air corrector jet; S61634017 Solex Z1 - Z2 Float; Solex float PBIC PIBC PICT; Solex float PICT; 6200018 Solex Needle valve size 160 Fiat 124, Alfa Giulia; 52844 Solex Pierburg needle valve VW PDSIT PICT DIDTA DIS; The air correction jet prevents the mixture going over-rich at high rpm (again, smaller numbers means richer for this jet). We are still processing and shipping orders from our warehouse as normal even while our site is offline. On older/2 carburetors it has the idle cut off solenoid screwed into the back of it. 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 . Brosol/Solex Idle Jets .40. We appreciate your continued support and understanding. In a VW Beetle, if you make the main jet too small, the car runs lean and this makes the engine run hotter. Except for the fact that it won't idle! Carburetor Reassembly
That means that the jetting requirement for any VW using ethanol-added gasoline/petrol is different to those using straight hydrocarbon gasoline/petrol. Idle jet sizes of 70 or so will "run" on anything, but they don't run WELL (unless fouled plugs or 12mpg are your idea of "well"). If the engine is stumbling at 2000 RPMs and lower, then you need to richen up your idle jet (go to a larger size) - but check carefully for air leaks around the throttle shaft first!. What you are mainly looking for is the condition of the carburetor. This helped a lot. The use of VW, Volkswagen and any model names and numbers is for the sole purpose of description of parts application. So be sure to remove the gasket and store it carefully. The selection of main gas and air correction jets is determined by venturi size. 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. 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