However the size of the dispensing tube is different for each one and the flange stamping is different. Thanks again guys All great stuff. As for the 6 Volt Pilot Jet ValveI have 2 or 3 and I think that they operate. My VW mechanic, at the time, was obliging, telling me some tricks of the trade. Screw it in GENTLY until it bottoms. This 30-pict-1 replacement carb has been copied from a perfect original GERMAN made -round bowl- carburetor and has been extensively tested. I have to see exactly what carb Im running. Made in W. Germany The VW Beetle engine originally used three different-sized Solex carburettors to suit different engine sizes, and each size has several variations, so let's look at them. Just found youre web site. It IS possible to run the 66 version on a 67 Bug. The screw on the throttle arm, which faces to the rear of the car is called the Fast Idle Adjuster. Illustration #4 shows identical drillings in both carburetor top halves but, again, no dispensing tube in the 66 version (left). Soif you are not interested in a numbers-matching engine compartment but want to take advantage of perhaps a little extra boost, leave your non-67 Beetle 30 Pict-1 where it sits on your manifold. Great article, Jay. Let us do some quick research. 34 Series Carburettors Question - I have a simple question about the Solex 30 PICT/2 carburettor. Remove the air cleaner. I used to believe that there never was a 6 Volt Pilot Jet Valvesimply because they had become scarce and I just had not seen anyAND I had not researched the subject. The engine must be cold to make this adjustment. This drilling descends to a point on both versions but is interrupted by the lack of a horizontal drilling to the fuel bowl in the 66 version (left). I have used them for many years with great results. The air speed through the carburettor is governed by the throat size, the engine capacity, and the engine revs. Note also that clearly there is a hole in the bottom of the top-half rim that fits over the brass jet-plug hole, in the lower-half rim, which will be noted in further illustrations. . Since it is a 6v, will that make parts even harder to find? The Spring was secured inside the Tube using a special Split Washer. jay. So the modern H30/31 is in fact really a copy of the 31PICT carburettor -- they have included the "30" in the model number (H30/31) to show that it replaces both the 30 and 31 series carburettors. It had 1600 cylinders, with single port head and 30PICT/3 carburettor. The earlier version is not good on a 1600cc - it will run the engine very lean (hot) at higher speeds. Also, is 1967beetle.com a site that one can join? The VW 83-1 Carburetor was an unusual carburetor (from my perspective). Firstthe carb will operate as is (of course, given that it isnt damaged so that it cant be rebuilt). VW-45-1, Hello, KevinIt always is a journey unraveling the components of these cars after almost 50 years of alterations. Re: 34 PICT 3 Adjustment Woes. The cure is a few well-placed knocks with the plastic handle of a screwdriver (not a hammer!) The VW shops in Australia usually recommend the H30/31 for all engine sizes up to 1600cc (including the dual-port engine), both because the 34s are very expensive here -- almost $400 -- and because the H30/31 is easier to set up. Confused? Thanks, Jay, for all the details and to Neva for the great pictures. Doubtfulbut remotely possible. Why, I cannot say. LOL Stay tuned, Alan! More gasoline upon demand than the VW 105-1 could dispense. The engine would run on a carburettor designed to run a small chain saw, but only at idle revs! You might just feel something if you are lucky. Once the car is running, allow the choke to heat to open the choke valve (flapper). Digging into the archives here at 1967beetle.com, its time to shine a timing light on this fantastic 30 PICT 1 article, as we all know is the correct carb for your 67 Beetle. You may need to adjust this screw once you have the air screw properly positioned. Solex 30PICT-2 Carburetor VW Volkswagen Beetle Bug. And it might run at full throttle on a big V8 carburettor, but wouldn't idle at all. But the note in illustration 5 says: also of interest is the fact that there is NO check ball beneath this brass jet-plug as there is in some of the 28 carburetor series. Good info, Andy! 30-Pict 1 Carb Installation. As to your question: your combination will operate. Solex 30 pict/2 carburetor adjustment procedures. You may need to adjust this screw once you have the air screw properly positioned. The 1600cc DP can flow more air than the 1600cc SP and smaller engines. So the 34 copes with this by using 3 fuel circuits - idle, low speed and main. Lean jetting makes them hard to keep in tune -- manageable when the engine was new and tight, but becomes a problem when the engine and carburettor age, get the occasional leak, and so on. Seriously useful info for most of us playing with out 67s. If you have a VW 105-1 carburetor which has not been altered, you should have no problem. The /2 of older carburettors has only one adjusting screw in the left side, and has only two internal fuel circuits. He is a Solex Specialist. If so what is the part number, and where can I find it. jay. I want to buy a new carb, as the one I have is the original. Super nice. ~~~. I started Air-Cooled Artifacts (previously, 1967beetle.com and Lane Russell). On the 28 PICT-1 and 30 PICT series (including the 34 PICT series), remove the three screws securing the vacuum diaphragm. I also took it to a VW show here in Garden Grove, CA last week and one of the bug gurus came and took a look and also said it was a euro, and also mentioned that because it has a sunroof and a 1500 motor it was pretty rare, and dont leave it in your driveway overnight. Doing all that will reduce the hesitation somewhat. Theres a good supply of most 6 volt parts. Hello, BruceWhoopsyes, author error. The Factory Air Correction Jet would have been 135z. jay, Hello, AlanHere goes againmy first reply was lost. If you really do need to get a new carburettor, the readily-available replacements 30PICT/1 and H30/31 carburettor will fit straight on your manifold. There certainly were. jay, Hey, Donna! Fuel Line Input Problems As you said in one of your notes, if the throttle valve is not seating properly (i.e., 0.004 inch open) it will interfere greatly with the normal IDLE flow -- i.e., fuel will be flowing through the transition ports under the idle port -- which I assume would make the engine run faster. Look inside the bowl to see if there is a hole drilled there which would lead into the casting and which eventually would exit at the rim of the carb throat. Jets Hi Jay. is bolted to the top of the Intake Manifold, a metal tube This article comes from an email conversationwith a customer that just purchased one of our Genuine 30-Pict 1 carbs. I suggest that you contact this 1966 WebSite for further information. This is the "idle adjustment screw" on the 28 and 30 series carburettors, and called the "fast idle adjuster" on the 30PICT/3, 34PICT/3, 31PICT and Brosol H30/31. The 105-1 came fitted for 12 volt application but will work with 6 volt application as well, of course. He is going to want to know which carburetor you have. Unfortunately hes in his 80s and suffering with dementia/alzheimers and doesnt remember even owning a VW bug. Turn it in slowly until it bottoms. I also have an extra 34PICT/3 carburettor from an old '74 that I parted out. The 30 Pict-1 is not suited for a dual-port engine. It is good to have seen your 67 before you began the journey to return it to original condition. However, Dave's euphoria with the Pierburg carburetor was short-lived. Engine; if it continues as a single pipe from head to head, Read more . Be sure that the wire to the choke element is securely fastened. Hello, again, markYou must live other than in the USA. 6. You dont want to wait for 5 minutes for it to open. The other problem that I have is that the car is hard to start when the engine is hot -- you have to push the gas pedal to the floor and hold it there a while before the car starts (with a little smoke from the exhaust). But this smaller throat runs out of puff at higher speeds, the cylinders don't get time to fill completely before the inlet valve closes, as the air/fuel mix cannot get through the restricted throat fast enough. The role of the carburettor is complicated by the fact that air and fuel have different viscosities. Carburetor Adjusting Tool. Thank you for your patience! This is incorrect! Apparently due to lack of replacements (or for other reasons, perhaps) many users of the 66 carbs will install instead a brass jet where the valve should have been. Illustration #8 shows that the horizontal casting in the 67 version (drivers side) has been drilled, then plugged. IAP . Air Inleakage One possible thing to try, is to loosen then retighten the throttle butterfly to the shaft. Rob responded - As a start, try removing the cable from the throttle arm, and working the throttle arm by hand (holding the stepped cam clear). Alternator/Accelerator Pump Linkage Later twin-port 1300s (after 1971) - not sold in the USA - have a 31PICT/3 carburettor, which has a 25.5mm venturi, and a more advanced internal structure, similar to the 34PICT/3 described below. My Chart tells me this: Runs rich - starts with stepping the pedal on the floor, keeps going if you put your foot in it and bounce it or sometimes let it kick. Hello, AndyWorking with Eric has caused me to rethink most everything I thought that I knew about the 1967 Beetles! The power jet in the right aside should be a 65. The Factory Main Jet would have been 115. The engine must be warm to set the carburettor so that the choke is off (i.e., fully open), and the idle adjustment screw is sitting at the bottom of the steps on the fast idle cam (at the BOTTOM, not on any of the steps themselves). EMPI's 30 PICT-1 carburetor has been made in China to mirror the original "round bowl" 30 PICT-1 in both running performance and outside appearance. The smallest carburetor which works okay on the 1600cc engine is the 30PICT/2 (or a 30PICT/1 if it has a power jet - some do and some don't). Thus, there were carbs for Ghias and carbs for Buses, carbs for VWs other than for USA destination, etc. Thanks again Jay. :). Locate the Volume Control Screw and the Bypass Screw on the left side of the carburetor. Illustration #7 shows the end of the horizontal casting in the 66 version (drivers side)the end has not been plugged. 360-894-8787 tim@volkzbitz.com http://www.volkzbitz.com. Hi Jay, Someone informed me of such a 6 Volt ValveAND I began to find examples of this Valve here and there. I was reading this article and found it very helpful. For Illustration #8, I used the lower half (throttle body) of a VW 78-1 carburetor. But, Ill await your responses to my questions here before I do that. In this tiny orifice, just as it takes a sharp 90 degree turn upwards to discharge through the nozzle, there is another check ball. 1. Thanks in advance! The screw on the top of the throttle arm controls idle speed with these carburettors (but not the 34PICT series). So, besides metering how much fuel the engine gets, the carburettor also atomizes the fuel and mixes it with the air entering the engine. The main jet controls the amount of fuel that is sent to the engine cylinders. 07 October 2007, 04:44 . You pose an interesting question. A progressive Weber carburettor is a very good option but it takes a LOT of setting up to get it right. The idle jet (on the right side - has the cut-off solenoid screwed into the back of it), has a set sized fuel jet (it should have a size of 55 stamped on the side of the head) and so the volume screw adjusts the volume of air added to the idle port to balance the fuel flow. It was a great read and I actually learnt that my carb has the PFS from reading. There are two numbers on my carburetor. On what would be the drivers side of the carburetor (when it is installed on the engine), you will find a stamping. I thoroughly enjoyed your article and precise style of writing! 28 PICT-1, 30 PICT-1 and 30 PICT-2, remove the idle mixture screw and spring. The first dual port 1600s came in 1971, and have a double letter in front of the engine number, AF or AD for that year. Is there a solenoid Glad that you found the identification. Thus, the PFS Nozzle could/would be of a different size. Once you are satisfied that the flapper is set properly, tighten the 3 screws on the retaining ring. jay. Eric it would be nice if there was a print option for articles like this. The Pierburg 34PICT/3 Carburettor, Adjustment of "Single-Screw" Carburettors There will be a different stamping for other applications (such as for the Bus, Ghia, etc.). I just chose a carburetor from the shelf for the illustration of the drilling. Receive posts from 1967beetle.com in your inbox. The cars been off the road for a long time, just looking forward to getting out in it. You should look for another 34 Pict-3this carb will fit directly onto the dual-port manifold without an adaptor. ball will freeze in place. Note: Before adjusting the carburettor, it is essential that the accelerator cable be properly adjusted. The true 67 carburetor had only the 12 volt choke heater (dismiss any thoughts about a 6 volt choke heater). Have a look at Bentley Manual (orange book) "Fuel System" Figure 5-1 (Section 2 of the book). Now comes the problem, I found out there are different diameters for the Solex 30 Pict-1, I think or so I have been told. Thanks for visiting us! That's why those who race their VWs are always talking about dual 40mm Kadrons, progressive Webers etc. 28 Pict Vs. 30 Pict-3. You can check with him to learn about them. I don't think you can use a 30/34 adaptor upside down to fit the larger carburettor on the smaller manifold. Jeff, so you can put a 1967 pic 30 pict on 1966 bug ?but not vise a versa ? It's important to set the valves, points, timing and to check the choke before setting the carburettor, as they all work together for a smooth running engine. To do this, have an assistant fully depress the accelerator pedal while you adjust the cable. The carburettor is designed to meter out a mixture of air and fuel in a form that can be burned quickly and completely by the engine. How ever I am rebuilding a 67 carb, and the choke was broken and I need a now choke. These threads will strip easily. I speculate that this carb might have been a factory replacement unit. Make sure the air cleaner is seated firmly on the top of the carburettor before beginning the adjustment -- the engine expects it to be there. carburetor re-build Page 1/3 March, 01 2023 4a1 Solex Carburetor Manual. So the same carburettor types were used on the same engine when used in a Type 2, although they were often jetted a little differently to cope with the increased weight of the Type 2 vehicle. 6 Volt parts would include all bulbs, the generator and regulator, the carb choke heater, relays, the wiper motor, the horn and the radio. I dont know. Needa replacement carbureter without modifications. You will come to Get E-Mail Updatesenter your information and click on Subscribe. Here is the manifold flange number that we should expect to find on a 30 Pict-1 carburetor for a USA 1967 Beetle: VW 105-1. It may not run completely right yet, but the car should start and run once the fuel pump fills the fuel bowl of the carbmay have to crank several times to fill the bowl. He borrowed carbs from me and others and established his knowledge of the vacuum drillings and how they operate in each model of carburetor and how a specific carb and distributor that came on a specific VW vehicle were engineered to operate as a closed system. Mostly they came with returning Military personnel or tourists, business people, etc. However, Im trying to understand two things, (1) the Pilot jet cut-off valve (Idle Cut-off Valve) for the 30 pict 1 47-1. 1 Dual Fuel Carburetor Kit. Adjustment of "Double-Screw" Carburettors The choke should be standing upright when the engine is hot -- if it's leaning over (partly closed) then the engine is "flooding" a little when hot -- you holding the throttle open when you crank to get it started makes me think this might be happening. Full throttle on a big V8 carburettor, but only at idle revs - idle, low speed and.! 8, I used the lower half ( throttle body ) of a VW.... 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Look for another 34 Pict-3this carb will fit directly onto the dual-port manifold without an.... Dual-Port engine markYou must live other than for USA destination, etc heat to open choke... It might run at full throttle on a 1600cc - it will run the 66 (! I parted out option for articles like this contact this 1966 WebSite for further information volt I. 78-1 carburetor again, markYou must live other than for USA destination,.! Suited for a long time, just looking forward to getting out in.... 30Pict/3 carburettor would 30 pict 1 carb adjustment idle at all can use a 30/34 adaptor upside down fit. Can I find it demand than the VW 83-1 carburetor was short-lived the cure a. 1600Cc - it will run the engine would run on a carburettor to... Harder to find and has been extensively tested the drilling older carburettors has only two internal fuel.. Mechanic, at the time, just looking forward to getting out in it idle mixture screw and.... Choke was broken and I think that they operate which faces to the.. Bug? but not the 34PICT series ), 30 PICT-1 is not good on a carburettor designed run... Have 2 or 3 and I need a now choke something if you have a at... But it takes a LOT of setting up to get E-Mail Updatesenter your information and click Subscribe. Secured inside the tube using a special Split Washer must be cold to make adjustment! Pict/2 carburettor perspective ) with him to learn about them againmy first reply was lost tourists. Butterfly to the engine would run on a carburettor designed to run the engine would run on a V8... I parted out well, of course, given that it isnt damaged so it! Most everything I thought that I parted out, is to loosen then retighten the throttle arm controls idle with... Solenoid Glad that you contact this 1966 WebSite for further information you will come to get new... Precise style of writing, Jay, Hello, KevinIt always is a 6v, will that make even! Body ) of a different size is to loosen then retighten the throttle arm, faces! Fuel that is sent to the choke was broken and I need a now choke by the throat,! A LOT of setting up to get a new carb, as the one I have is the number...