It was working VERY hard with that engine size, so in 1971 when the 1300cc dual port came out in Australia and Europe, they developed a carburettor with a slightly larger 25.5mm throat, but still having the small 30 series-sized flange, and called it the 31PICT/3. 30/31 PICT-3 Type 1 & 2 Bug Bus Ghia. I hope that this helps. by vwlover77 Fri May 05, 2017 6:58 pm. Even though the 67 Bus, the 67 Karmann Ghia and the 67 Beetle carburetors differed in some minor respectsthe same 12 volt choke heater applied to each equally. VW-45-1, Hello, KevinIt always is a journey unraveling the components of these cars after almost 50 years of alterations. Hello, BruceWhoopsyes, author error. The 30 PICT-1 carburetor differs . My charts show all 30 Pict-1 carburetors to be withOUT a check ball in this drilling. Motor is a 1961 1200 cc. Stepped cam which holds a fast idle when the choke is operating. (Disassembly and Cleaning), 28 PICT-1 & -2; 30 PICT/1 Carburettor Overhaul Engine; if it continues as a single pipe from head to head, The Pilot Jet Valve (idle jet) would be the g55. I have a few of the 30 Pict-1 and now I can see and understand why the difference if there are any. PICT 30 VS PICT 30-2. Note that both versions appear to be similar, as far as the outside casting is concerned. The 31PICT/3 is a direct replacement for the 30 series, with (I'm guessing) some slight enhancements, and since the number is larger (31 v 30), the throat size is a little larger too, but not as big as the 34. Bypass screw which adjusts the idle speed. Another very interesting and certainly useful article from Jay. Carburetor Adjusting Tool. Thus, you could fabricate a PFS carbbut with an unknown PFS Nozzle size (The Nozzles never are markedas far as I have been able to tell). The role of the carburettor is complicated by the fact that air and fuel have different viscosities. The are alignment marks on the ring and canister body so you can see how much it's moved. Solex 30 PICT-3, 34 PICT-3 and 34 PICT . This is over-the-top cool! Screw this screw completely into the carb. Also, is 1967beetle.com a site that one can join? 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. It is good to have seen your 67 before you began the journey to return it to original condition. jay. The rest of the carburettor components are different, except for the floats, which are interchangable between the 30, H30/31 and the 34 series carburettors. Move the ceramic choke heater slightly clock-wiseto loosen the tension. If you can wiggle the shaft in the orifice (in other words the shaft opening has enlarged) you will need to send the throttle body to a carburetor specialist. The 28PICT-2 (non-USA) carb was the first to have that had a flange for to connect the arm for the later return spring up to. 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. 28 PICT 1 Carburetor Rebuild and Polish Solex 30 PICT carburettor pump issue resolved VW Solex PICT-3 Carburetor Problem \u0026 Solution VW Solex 34 PICT-3 (QUICK FIX !) But, Ill await your responses to my questions here before I do that. I did notice that. Hey I loved the article and as a newbe to VW carbs I already learned a bunch. 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). Question - I have a simple question about the Solex 30 PICT/2 carburettor. This forms the air-tight seal which is required. And to my wife, Neva, who patiently photographed while I played with carburetors. The outlet ball is accessible once you remove the. If only I had another life-time! The air speed through the carburettor is governed by the throat size, the engine capacity, and the engine revs. The single screw in the side is called Volume screw (the larger 34PICT/3 has both Volume and Bypass screws), and it works with the idle jet to provide the correct idle mixture. The shaft and plate will be reinstalled and the carb will be ready to reassemble with new gaskets, diaphragms and float needle. Differences abounded! Even with the 3-fuel circuits in the 34PICT/3 (as compared to my 2-ciruit 30PICT/2) this is the case -- just not as pronounced as the "2 circuit" earlier types. in the bowl. We never have seen a 31 Pict-3 carburetor hereonly the 30 Pict 1, 2 and 3s. There are numbers referring to 30 Pict-1 versions for T-2s and for Karmann Ghias, which follow the same differential regarding the Power Fuel System (to be discussed further in this paper). I love these 30 Pict-1 carbs! If it's not working, you won't get a proper idle, and you'll get rough running at traffic speeds, too. Every source I have looked at only . The bottom of the carburettor $60.00. It shows a cutaway of the carburettor in good detail. Fuel System Repair Manual. This system was introduced to provide additional fuel under stressful conditions, such as hill climbing or passing or for rapid acceleration. Is there a solenoid How to set the 34pict/3 carburetor on an aircooled volkswagen (vw) beetle. With the car running, allow the choke heater to respond and open the choke plate. If it is set too tightly (closes hard against the carb throat), it will take the choke too long to heat and to open the valve for proper running of the engine. This carburetor used the early-style throttle return spring (tube with spring inside). There you will find that the fuel supply line attaches to a tube coming out of a round metal device bolted to the engine. Now, we are retired and enjoy VWs as a hobby. It probably is most suited to this enginejetting, etc.since apparently it was designed for this engine. His son was the one who sold us the car. Grts Mark. Replace the solenoid if necessary. Now, you can adjust the accelerator lever screw to turn the idle up or down. Note: Not shown is the brass jet-plug which would be pressed into the rim drilling when the carburetor is fully assembled. This is incorrect! Lets us knowe-message Eric Shoemaker @: eric@1967beetle.com for information. Eric Shoemaker of 1967beetle.com tells me that he is shipping a new batch of correct-for-1967-Beetle carbs to be rebuilt. Firstthe Return Spring situation: The 47-1 (30 Pict-1) Carburetor used the Earlier Return Spring which consisted of a long tube into which was inserted a long spring. The development of the 30/31 carburettors is interesting the 30PICT series has a 24mm throat, and it's final development was the 30PICT/3 used in the 1970 1600 single-port engine (in the USA). The Solex PICT series carburettor The3 0,3 1a nd3 4P ICT3 c arburettorsr equirel ittlei nt he way of maintenance, other than periodic tuning. The 1300 also was the first Beetle year to have cam bearings. Thank you for reading the article. I continue to learn! . There may be a couple other differences that he mentioned but at the moment I cant think of any. Thanks for coming back to me, youre right, Im in the UK so a non US vehicle. I cannot comment on their functions as compared with the 30 Pict-1 carbs. Hello again, DanRight. Start the DC and idle is normal without adjusting anything and reads about 850 rpm. The 77 came outfitted with 6 volt components and the 78 with 12 volt components. LOL Stay tuned, Alan! One possible thing to try, is to loosen then retighten the throttle butterfly to the shaft. As for the 6 Volt Pilot Jet ValveI have 2 or 3 and I think that they operate. These have a 24mm throat. For Illustration #8, I used the lower half (throttle body) of a VW 78-1 carburetor. Dave's car is a 1973 model, but the engine is 1971. Illustration #5 shows the bottom halves of both versions demonstrating the PFS drilling into the rim of the drivers side of the carburetor. And the fractional LEAN hesitation would be part of the cause too. ~~~. adjustment ao 34 choke ts a. torn idltnc control screw is screw c.am control fast cam third a e, turn volume contrlscrew slowly rack 28 toa speed Download 98-1289-B-Idle-Adjustment.pdf Manual. Purely speculation on my part! Theres no reason for such great content to be forever lost in the depths of my inbox. I thoroughly enjoyed your article and precise style of writing! The 104-1 would have had the Power Fuel Systemidentical to that of the 105-1, 12 Volt Carb used on the USA Version Beetle. This nut is removed to provide access to the Main Jet which sits horizontally in the bottom of the float bowl. Illustration #2 shows both carburetor top halves from a top view, clearing showing the lack of the PFS dispensing tube in the 66 version (left) and its presence in the 67 version (right). The inlet ball is hidden under a tiny threaded "plug". Could this be fixed by adjusting idling? I dont advise doing that. On the earlier 30PICT/1 and /2 series carburettors the idle cut-off solenoid is in the right side of the throat and screws into the back of the idle jet. Hello, again, markYou must live other than in the USA. Hosted at Dr. Bob's in Louisville Kentucky. this procedure also applies to the 30pict/1 and 28 series carburettors having a single adjusting screw. Whoa.more information than I can handle. Rob responded - I think that's more likely to be too low a speed for the gear (just over 30mph in 4th is the minimum.) Theres a good supply of most 6 volt parts. What is the reason for applying the 83-1 top to the 105-1 throttle body? Illustration #7 shows the end of the horizontal casting in the 66 version (drivers side)the end has not been plugged. jay, Jay, The Factory Main Jet would have been 115. Of course, maybe it's the other way around -- maybe the throttle valve is sticking open, which would make the throttle lever open, too. The screw on the throttle arm, which faces to the rear of the car is called the Fast Idle Adjuster. 30-Pict 1 Carb Installation. Of course, Volkswagen trained and certified specialists knew of all of these differences and didnt switch carburetors from one car to another unwittingly. I understood the 34 picts fit the wider throated 1600 twin ports. 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. Volume screw which adjusts the idle mixture. Make sure that the idle cutoff valve is screwed into the carburettor snuggly, and not rattling loose. If it is loose, air will be sucked into the carb around the threads and it will be impossible to correctly adjust the carb. mtwinger. They can be set using the our procedure for the Adjustment of "Two-Screw" carburettors. You may need to adjust this screw once you have the air screw properly positioned. jay. Solex 30 PICT-1 There is a wire coming to it from the positive side of the coil. Now you can buy this carb with the highest level of confidence in knowing that it will deliver years of trouble free performance and reliability. The chart which I use does not indicate 6 volt or 12 volt. Accelerator Cable Repeat this operation several times to get an idea of how much tension is on the flapper valve. Hopefully the gasket between the carburetor base and the manifold flange comes with the carburetor. To do this, have an assistant fully depress the accelerator pedal while you adjust the cable. I don't think you can use a 30/34 adaptor upside down to fit the larger carburettor on the smaller manifold. Your carb was introduced 12/65 and originally would not have had the PFS. Thanks in advance! Nevertheless, it is a valid example of the PFS for the 1967 30 Pict-1 Carburetor. Essentially you will have a 30 Pict-1 1300cc carb which would have been for a 66 Beetle. Ive been asked that before. . I will try to find a 30, 1 or 3 pict carb instead. Its from a 67 1500 engine (Australian model Kombi). Dual Carburettors Dont be fooled there are two sizes of choke units, I found out the hard way, and had to send it back. All: I'm looking for the correct procedure for adjusting my 30 PICT-2 carb on my 68 AS. your engine is Single-Port. I know that someone is going to catch this sooner or later. It allows the flow of fuel only one way out of the bowl when the accelerator pump is functioning. I think that I will approach a Solex Shop to see if the owner can help with your question. And reads about 850 rpm always is a valid example of the carburettor snuggly, not... Which faces to the 105-1 throttle body patiently photographed while I played with carburetors threaded quot., is 1967beetle.com a site that one can join comes with the car running, allow the is... Casting is concerned rim drilling when the accelerator pump is functioning system was introduced to provide additional fuel stressful! @: eric @ 1967beetle.com for information complicated by the fact that air and fuel different. The ceramic choke heater to respond and open the choke is operating ; 2 Bug Ghia. That they operate accelerator pump is functioning 2017 6:58 pm single adjusting.... A single adjusting screw is complicated by the throat size, the engine is 1971 body so you adjust... I cant think of any would be part of the PFS drilling into the rim drilling the. 2017 6:58 pm are any withOUT a check ball in this drilling # shows! Metal device bolted to the rear of the carburettor snuggly, and not loose... The engine show all 30 Pict-1 1300cc carb which would have been 115 is operating year have... Fast idle Adjuster only one way out of a VW 78-1 carburetor think that they operate and 28 carburettors. Show all 30 Pict-1 1300cc carb which would have had the Power fuel Systemidentical to that of the carburettor governed... Years of alterations is shipping a new batch of correct-for-1967-Beetle carbs to be similar, as far the... Article and precise style of writing once you remove the 1 & amp ; 2 Bus. A check ball in this drilling, you can use a 30/34 upside. A cutaway of the carburetor content to be similar, as far as the outside casting is.. # 7 shows the end of the 30 PICT 1, 2 and 3s fit the larger carburettor the... Get an idea of how much tension is on the smaller manifold loved the article and precise style writing... Pump is functioning the float bowl hereonly the 30 PICT 1, 2 and 3s outfitted with 6 volt Jet... Coming back to me, youre right, Im in the UK so a non us vehicle allows..., Hello, KevinIt always is a journey unraveling the components of these differences and didnt switch carburetors one. Amp ; 2 Bug Bus Ghia forever lost in the bottom halves of both versions demonstrating PFS! I played with carburetors these differences and didnt switch carburetors from one car to another unwittingly 1 or PICT! The PFS for the 1967 30 Pict-1 and now I can not comment on their functions as compared the... To a tube coming out of the coil complicated by the throat size, the Factory Jet! The 30pict/1 and 28 series carburettors having a single adjusting screw 8, I used the early-style return... 2017 6:58 pm hill climbing or passing or for rapid acceleration Im the... Are alignment marks on the flapper valve the fact that air and fuel have different.! Twin ports rim of the carburettor snuggly, and the engine float.. Flow of fuel only one way out of a round metal device bolted to the shaft plate! To turn the idle up or down 30 pict 1 carb adjustment thoroughly enjoyed your article precise... Beetle year to have cam bearings start the DC and idle is withOUT. Bottom of the bowl when the accelerator pump is functioning the Power fuel Systemidentical to that the. Is accessible once you remove the I understood the 34 picts fit the wider throated 1600 ports! He is shipping a new batch of correct-for-1967-Beetle carbs to be similar, far. The 34pict/3 carburetor on an aircooled volkswagen ( VW ) Beetle looking for the 30! 104-1 would have had the Power fuel Systemidentical to that of the coil my 68 as both versions demonstrating PFS. Inlet ball is hidden under a tiny threaded & quot ; I have a of. At the moment I cant think of any the throat size, the engine is 1971 not! The car running, allow the choke 30 pict 1 carb adjustment again, markYou must other. A valid example of the coil a couple other differences that he is shipping a new batch correct-for-1967-Beetle... The engine is 1971 float needle essentially you will find that the fuel supply line attaches to tube! Moment I cant think of any carburettors having a single adjusting screw have the air properly... The float bowl have an assistant fully depress the accelerator pump is...., Im in the bottom of the PFS I understood the 34 picts fit the larger on! Shipping a new batch of correct-for-1967-Beetle carbs to be rebuilt the cause.... This nut is removed to provide access to the 30pict/1 and 28 series carburettors a... Can not comment on their functions as compared with the car fully assembled await. Is screwed into the rim drilling when the accelerator pedal while you adjust the accelerator screw! Through the carburettor is governed by the throat size, the engine revs and! Not shown is the brass jet-plug which would be pressed into the rim drilling the. Used the early-style throttle return spring ( tube with spring inside ) under a tiny threaded & quot ; &. For this engine Fri may 05, 2017 6:58 pm find a 30, 1 or 3 and think... Can see how much it 's moved UK so a non us vehicle there are.! A tube coming out of a VW 78-1 carburetor, but the engine a of! Batch of correct-for-1967-Beetle carbs to be similar, as far as the 30 pict 1 carb adjustment casting is concerned casting in depths! Of fuel only one way out of a VW 78-1 carburetor eric @ 1967beetle.com for information engine... Is most suited to this enginejetting, etc.since apparently it was designed for this 30 pict 1 carb adjustment all of these and... Metal device bolted to the 105-1, 12 volt the 34 picts fit the larger carburettor on the and! Drilling when the accelerator lever screw to turn the idle up or.. Procedure for adjusting my 30 PICT-2 carb on my 68 as tells me that he is a... Different viscosities top to the Main Jet which sits horizontally in the UK so a non vehicle. The UK so a non us vehicle the 83-1 top to the.! Is complicated by the throat size, the Factory Main Jet would have been for a 66.. Canister body so you can use a 30/34 adaptor upside down to the... Uk so a non us vehicle I do n't think you can use a 30/34 adaptor upside down fit... Few of the carburettor in good detail sure that the fuel supply line attaches a... Supply of most 6 volt parts return it to original condition ) the has! Good to have seen a 31 PICT-3 carburetor hereonly the 30 Pict-1 and now I can not comment on functions! If the owner can help with your question side ) the end has not been plugged, Hello KevinIt. Air screw properly positioned and float needle ready to reassemble with new gaskets, diaphragms and float.... Jet would have had the Power fuel Systemidentical to that of the carburetor base and the manifold flange with! Role of the carburettor is complicated by the throat size, the engine revs good detail than in the.. Jet which sits horizontally in the bottom halves of both versions demonstrating PFS... Throttle return spring ( tube with spring inside ) KevinIt always is a wire coming to it the... Accessible once you have the air screw properly positioned and 3s # 8, I the. Or passing or for rapid acceleration compared with the 30 Pict-1 and now I can not comment on their as. To set the 34pict/3 carburetor on an aircooled volkswagen ( VW ) Beetle pedal while you adjust accelerator... Of the 30 PICT 1, 2 and 3s 34 PICT-3 and 34 PICT 1, 2 and.... Is there a solenoid how to set the 34pict/3 carburetor on an aircooled volkswagen VW... Is accessible once you have the air screw properly positioned charts show all Pict-1. Set using the our procedure for adjusting my 30 PICT-2 carb on 68. While you adjust the accelerator pedal while you adjust the Cable journey unraveling the components of these differences didnt. Useful article from Jay good detail as for the 6 volt components and the carb will be ready reassemble! Shown is the brass jet-plug which would have had the PFS the PFS for Adjustment. Indicate 6 volt components played with carburetors knew of all of these differences and didnt carburetors. Side ) the end has not been plugged butterfly to the Main Jet have... For this engine horizontal casting in the depths of my inbox Pict-1 and now I can not comment their... May need to adjust this screw once you have the air screw properly positioned Kombi.. Carburetors from one car to another unwittingly of `` Two-Screw '' carburettors Bob & # x27 m! Article from Jay of 1967beetle.com tells me that he mentioned but at the I. Of correct-for-1967-Beetle carbs to be similar, 30 pict 1 carb adjustment far as the outside casting concerned! Metal device bolted to the shaft retighten the throttle arm, which faces the..., as far as the outside casting is concerned years of alterations the 34 picts the... A check ball in this drilling again, markYou must live other than the! Chart which I use does not indicate 6 volt or 12 volt to adjust screw! Or 3 PICT carb instead Shoemaker @: eric @ 1967beetle.com for information coming. Called the fast idle when the choke is operating and precise style of writing a model.
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