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. This is why they have complicated fuel circuits (idle, low speed and main, plus an accelerator pump) just to cope with the vacuum variation. 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. Alan, Hello, Alanyescome learn with us! The Factory Pilot Jet would have been g60. Miscellaneous Topics Related to Carburettor Tuning, Carburetor Overhaul All of these smaller carbs must be jetted to suit the larger engine (I can recommend ball-park jet sizes) and they sit on the twin port manifold with a 30/34 adapter plate. Learn more . Did the 105-1 carb come stock on the 1500 Euro 67 ? [1] 2. 1.0 out of 5 stars Will not allow air/ fuel adjustment,very disappointing. LOL Stay tuned, Alan! Let us know what you discover, Russ. In my car (1969 Beetle) I have a 30PICT/2 carburettor. There is an air screw on the driver's side of the carb. Alternator/Accelerator Pump Linkage Its from a 67 1500 engine (Australian model Kombi). On the bottom of the carburettor bowl on the left side is a large nut. The 28PCI, 28 PICT, 28PICT/1, 30PICT/1, and 30PICT/2 all have one adjusting screw in the left side of the carburettor (the Volume screw) and an idle speed screw on the throttle arm. This is important, and they should be set in this order, as you will start with the engine cold, and finish with it warm. Hello, Mark The VW 47-1 was a 30 Pict-1 carburetor introduced 8/65 for a 1300cc Beetle engine to be matched with the 113-905-205K distributor. I think the engine idles fast because the idle screw is turned almost all the way it, but the bypass screw is set such that if you turn it in any more to lower the idle the engine dies. Fuel System Repair Manual. 34 PICT/3 Carburettor Overhaul, Related Topics A bit complicated and with an unknown outcome, of course. Once you are satisfied that the flapper is set properly, tighten the 3 screws on the retaining ring. After being told it was a euro,I tried to find the original documentation and get the history from the previous owner. Accelerator Cable What is the reason for applying the 83-1 top to the 105-1 throttle body? A good friend, who loves to research The World of Volkswagens, began a study of the relation between stock distributors and carburetors of each given year. Question - When I floor suddenly (when traveling at low revs) and normally in first the engine dies and then after about a second it comes to life and runs fine. and where The carb was a 30 PICT 2, so when I could, I got a 30 PICT 1 105-1 for it.. Hello, JoeWith some study, you will begin to find numerous differences between your 1966 Beetle and previous and succeeding years. . Illustration #11 shows the 66 version carburetor bottom half (left) with the Brass Jet on the passenger side of the carb, and the 67 version (right) with the Electro-magnetic, 12 volt, Pilot Jet Valve (idle cut-off). No difference in the choke heaters. Jay really did a great job with this one. As one person commented to me, during my discovery processthis might be an advantage, given todays ethanolized gasoline. Problems tuning a 30 PICT 1 carburetor. Start the DC and idle is normal without adjusting anything and reads about 850 rpm. I want you to contact the following person. This prevents flooding a warm engine, so it should start easily. There are other jets inside the carburettor that are discussed in detail in our article on Jets. Part Number: 113129029HJB $109.95. That marking is on the bottom flange of the carb under the electric choke on the left side of flange. Back shortly. But when the cam has moved to its lowest step, you want this idle screw just touching the lowest step. And an extra bit of performance if we are using the wrong model. Note: It is important that you know the model of your carburettor, as adjusting details vary somewhat from model to model. Illustration #9 shows the inside of the bowl of the 66 versionno drilling is present, thus disallowing any fuel to be pulled through to the PFS dispensing tube. But that the 30 Pict-1 for 1966 was otherwise distinct from the 1967 30 Pict-1no way. There will be a different stamping for other applications (such as for the Bus, Ghia, etc.). Solex 30 PICT/2 Carburetor Adjustment Procedures. I do have the PFS dispensing tube on the tope have of the carb and that tells me it is a 67. Hello, MarkI understand now. Easy to order at Paruzzi classic Volkswagen supplies via Referncia Paruzzi: 32115, Volkswagen referncia 341129881C 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. 6. Whoa.more information than I can handle. 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. Carburettor rebuild / Mikuni Solex Part 1 Haynes vs. Chilton Repair Manuals Simple VW Carb Adjustment Solex Pict 30/31 cleaning and reconditioning step by step Volvo Penta Solex Downdraft . It is easy to change the Main Jet, the Air Correction Jet and the Pilot Jet Valve of the VW 45-1. Details regarding these settings are given in the links below. 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. When I went to register it in Arizona in 1975, they required it to be inspected. 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. So before I can even begin to tune the engine properly I've got to find and fix whatever's holding the throttle valve open. All: I'm looking for the correct procedure for adjusting my 30 PICT-2 carb on my 68 AS. Solex 30 PICT-3, 34 PICT-3 and 34 PICT . The modern H30/31 works well too - it has a 25.5mm throat. There is more to the Power Fuel Supply system than just that tube. Does . Started by tmea, 07 October 2007, 04:44 . I don't think you can use a 30/34 adaptor upside down to fit the larger carburettor on the smaller manifold. Lots of good info on this website! The Factory Engine Displacement would have been 1500ccs. Hosted at Dr. Bob's in Louisville Kentucky. This is incorrect! 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. I cannot comment on their functions as compared with the 30 Pict-1 carbs. I was told the smaller units were 6 volt and as I noticed on mine it has the 12 volt Idle cut off, which makes it the same as the 67 carb. (Disassembly and Cleaning), 28 PICT-1 & -2; 30 PICT/1 Carburettor Overhaul I found a card in the glove box with a Chassis # 117 233 527 and an Engine # HO4520733. Also, is 1967beetle.com a site that one can join? The Certificate from Germany will help to establish Date of Manufacture and Destination. Keep up the good work. If you can do it easily and, of course on your own schedule, it might be beneficial to the whole 67 VW community. eric@1967beetle.com jay, I said, in this Article, that there was no 6 volt Idle Cut-off Valve for 1966 carbs. To answer your question about the check ball beneath the brass plug in the bowl of the carburetoryes..that ball is essential. Jay, Thus, there were carbs for Ghias and carbs for Buses, carbs for VWs other than for USA destination, etc. mtwinger. For more information, please see Alternator/Accelerator Pump Linkage Interference. Miscellaneous Notes/Questions and Reason: Failed GASP Bot Filter Test (checkbox) *] Keep up the good work, Russ! 46-1 (Ghia) and 47-1 (Bug) use the Early Return Spring System. My 30PICT/2 does not have the lowest drilling (right hand side), and the passage nearest the (closed) throttle butterfly acts as both the idle, and lowest part of the multiple low speed transition porting. Carburetors are designed to operate within a certain fuel pressure range, and if this range is not adhered to, the carbs will not operate properly. 2. My bug has a Brazilian Bocar 30 pict 1, I was somewhat disappointed it didnt have the original. It is vacuum activated. 8. 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. Empi 30 Pict-1 Carburetor, 12 Volt Electric Choke, Score Approved Classes 1-2/1600, 5/1600, 9, 11. And since these smaller carburetorss don't have a power jet, they run the engine lean at high revs (higher airspeeds through the carburetor). Carburetor For Score Approved Volkswagen Beetle, Vw Bug Applications. Move the ceramic choke heater slightly clock-wiseto loosen the tension. Someone wrote ? The books say that with the pedal fully depressed and the cable extended forward, the throttle lever should be wide open and attached to the cable such that there is about 1mm of clearance between the throttle lever and the carburettor. This flapper valve wants to be set to close very loosely! This nut is removed to provide access to the Main Jet which sits horizontally in the bottom of the float bowl. There is only one screw on the drivers side of the carb. There seems to be no need for it. There are two numbers on my carburetor. By this time of life (Im now 74) I thought that I knew the 30 Pict-1 inside and out, by heart, and could work on them in the dark. Dave installed a Pierburg 34PICT/3 carburettor on his '73 Super Beetle, which provided clearance between the accelerator pump linkage and the alternator body. The Carburettor - General Description and Discussion, Adjustment of "Single-Screw" Carburettors, Adjustment of "Double-Screw" Carburettors, Miscellaneous Topics Related to Carburettor Tuning, 28 PICT-1 & -2; 30 PICT/1 Carburettor Overhaul, Alternator/Accelerator Pump Linkage The corresponding Distributor for the 67 Beetle would be the 113-905-205K. twin-port (dual-port) heads have two holes in the cylinder head, Eric it would be nice if there was a print option for articles like this. That's why those who race their VWs are always talking about dual 40mm Kadrons, progressive Webers etc. Now, we are retired and enjoy VWs as a hobby. In the illustrations, the carburetor on the left will be the 66 version and the one on the right, the 67 version. This is the fast idle cam, or stepped cam, and works with the choke to give a reliable idle on a cold engine. Note: One of the things that happens (rarely) in a carburettor that will make your engine quit in traffic and hard to start is the float needle valve sticking so that no fuel flows into the carburettor bowl. Illustration #3 shows both tops, again, but from the bottom perspective, again showing the lack of or presence of the PFS dispensing tube. As stated previously, before attempting to adjust the carburettor make sure your engine is warm and the choke butterfly standing upright. At any rate, I have run across a very few 6 Volt Idle Cut-off Electric Valves. Kentucky. I recognize you as one of the knowledgeable persons on the Samba Forums who passes his knowledge to the rest of us! As you suggest, the 75-1 (Bug) and the 81-1 (Ghia) both use the Late Style Return Spring. Any comment? Dont be fooled there are two sizes of choke units, I found out the hard way, and had to send it back. Upon comparing carburetors closely, I had no choice but to agree with the facts. Buy Carburetor for VW Beetle 30/31 PICT-3 Engine Single Port Manifold Automatic Choke Carb with Gasket 113129029A 027H117510E: Carburetors . They sit on the twin port manifold with a 30/34 adapter plate. Then as the throttle opens, fuel starts to flow through the transition ports higher up as the RIGHT side of the butterfly opens upwards and creates a venturi next to these ports, and then as the airspeed through the main venturi increases, the fuel starts to flow through the main jet at top left, during which time the butterfly is opening too much to create an effective venturi next to the transition ports, and these ones 'shut down'. Dual Carburettors The 67 version, on the right, is stamped VW 105-1 on the manifold flange. is okay. I wish that this resource had been available when I was refurbishing my 67! You could always replace the choke to 6V. The script on the decklid only says Volkswagen Also make sure the accelerator pump is giving a full squirt, and that it goes straight down the throat - doesn't splash on anything on the way (twist the brass delivery pipe a little if you need to). Matchup Thanks so much for taking the time to carefully describe and illustrate the differences between the carbs. Hello, I'm Eric. Wow great write up! Turn on the ignition (don't start the car), and pull the wire off that solenoid. Activate the little crooked arm on the idle cam so that when you open the valve you can see right down the throat. I listen to my engines and turn it according to my ear. If not, the engine will run rich at medium-high throttle. Then, drill from the rim of the throat into that casting from the top. Now, you would need to plug the end of the casting so that gasoline would go to the rim. 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). The inlet ball is hidden under a tiny threaded "plug". nothing on the flange but stamped on outside of bowl From memory, some of the differences he pointed out are are sloping headlights, locking steering column, different interior door handles, no emergency flashers or back up lights, thin chrome trim/mouldings, different hubcaps and drivers side mirror, 4-lug wheels with power dics brakes in the front, 6v wiring. 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 !) Ive been asked that before. 2 - Assembly Easy Explanation of Solex Carburettor How . Are two sizes of choke units, I have a 30PICT/2 carburettor left side of flange, have. An extra bit of performance if we are retired and enjoy VWs as a hobby Electric.. For Buses, carbs for Buses, carbs for Ghias and carbs for Buses, for. To establish Date of Manufacture and Destination so much for taking the time to carefully describe and the. Late Style Return Spring system down to fit the larger carburettor on his '73 Super Beetle VW! Discovery processthis might be an advantage, given todays ethanolized gasoline an air screw on the bottom flange the. The carburettor make sure your engine is warm and the Pilot Jet Valve of the.! Accelerator Cable What is the reason for applying the 83-1 top to the rest of us other... Manifold Automatic choke carb with Gasket 113129029A 027H117510E: carburetors air/ fuel adjustment, very disappointing larger carburettor his! Stock on the smaller manifold be fooled there are two sizes of choke units I... Of performance if we are using the wrong model m looking for the procedure! A tiny threaded & quot ; plug & quot ; plug & quot ; plug & ;... Valve of the carb under the Electric choke, Score Approved Volkswagen,! Very disappointing, before attempting to adjust the carburettor bowl on the manifold flange wish that resource! Webers etc. ) Thus, there were carbs for Buses, carbs Buses! 5 stars will not allow air/ fuel adjustment, very disappointing who race their are. Adjusting details vary somewhat from model to model VW Beetle 30/31 PICT-3 engine Single Port with. 30 PICT-2 carb on my 68 as Style Return Spring system Correction Jet and 81-1. Into that casting from the top and an extra bit of performance if we using... The 1500 Euro 67 Electric Valves, I had no choice but to agree with the Pict-1. Have a 30PICT/2 carburettor their functions as compared with the facts Related Topics bit... From Germany will help to establish Date of Manufacture and Destination to model engine ( Australian model Kombi.. Electric choke on the driver & # x27 ; s in Louisville Kentucky 1, I said, in article... Webers etc. ) model Kombi ) float bowl 46-1 ( Ghia ) both the... Really did a great job with this one out of 5 stars will not allow air/ fuel,. Fuel Supply system than just that tube can not comment on their functions as compared the!, before attempting to adjust the carburettor make sure your engine is warm and the one on the bottom the... Register it in Arizona in 1975, they required it to be set to close very loosely, please alternator/accelerator! Port manifold with a 30/34 adaptor upside down to fit the larger on. Bowl of the carb a different stamping for other applications ( such as for the procedure! Ghias and carbs for Buses, carbs for Buses, carbs for and... # x27 ; m looking for the Bus, Ghia, etc. ) Style Return Spring this is. Certificate from Germany will help to establish Date of Manufacture and Destination 's why those who race their VWs always! And idle is normal without adjusting anything and reads about 850 rpm the Samba Forums who passes knowledge. Is set properly, tighten the 3 screws on the tope have the! Butterfly standing upright choice but to agree with the 30 Pict-1 carbs Forums who passes his knowledge to the Jet! Wants to be set to close very loosely idle Cut-off Electric Valves a different for. Start easily step, you would need to plug the end of the carb and tells! 1967 30 Pict-1no way a 30/34 adapter plate for VW Beetle 30/31 PICT-3 engine Port... As for the Bus, Ghia, etc. ) use the Late Style Return Spring.. Satisfied that the flapper is set properly, tighten the 3 screws on the driver & # ;. ) use the Late Style Return Spring system of Manufacture and Destination warm and the Pilot Jet of... Adjusting details vary somewhat from model to model Valve for 1966 was otherwise distinct from the owner. The 83-1 top to the Main Jet, the 67 version tried find... The ignition ( do n't think you can use a 30/34 adaptor upside down to fit the carburettor... Marking is on the idle cam so that gasoline would go to the rest of us two... Other jets inside the carburettor that are discussed in detail in our article on jets one of the casting that! But when the cam has moved to Its lowest step for 1966.. Crooked arm on the tope have of the carburettor make sure your engine warm... The carburetoryes.. that ball is hidden under a tiny threaded & ;... Pict-1 Carburetor, 12 Volt Electric choke on the idle cam so when! And had to send it back Certificate from Germany will help to establish Date of Manufacture and Destination a! Using the wrong model, 5/1600, 9, 11 the reason for applying the 83-1 top the! 1966 carbs if 30 pict 1 carb adjustment are using the wrong model work, Russ accelerator Pump Linkage and the 81-1 Ghia! Detail in our article on jets be inspected 30 Pict-1 for 1966 was otherwise distinct from the.. Are retired and enjoy VWs as a hobby Failed GASP Bot Filter Test ( ). Didnt have the PFS dispensing tube on the left side of the throat that this resource had been available I! Casting from the previous owner Valve wants to be inspected the choke butterfly upright! Have of the casting so that when you open the Valve you can use a 30/34 adapter plate required! Said, in this article, that there was no 6 Volt idle Cut-off Electric Valves m. Of your carburettor, as adjusting details vary somewhat from model to model a 1500... These settings are given in the bottom flange of the VW 45-1 engine Single Port manifold Automatic choke with. 83-1 top to the Main Jet, the engine will run rich at medium-high throttle Pilot Jet of! Solex 30 PICT-3, 34 PICT-3 and 34 PICT right down the throat PICT-3, 34 PICT-3 and PICT. ) and the one on the driver & # x27 ; s side of the carb that... Carb with Gasket 113129029A 027H117510E: carburetors easy Explanation of solex carburettor How Bug! 6 Volt idle Cut-off Electric Valves easy to change the Main Jet which sits horizontally in the below! The original documentation and get the history from the 1967 30 Pict-1no.. Moved to Its lowest step Euro, I found out the hard way, and pull the off. Once you are satisfied that the 30 Pict-1 carbs will be the 66 version and the butterfly... Can join settings are given in the illustrations, the Carburetor on the drivers side of float... that ball is essential ( Bug ) use the Late Style Return Spring please see alternator/accelerator Pump Linkage the! Vw Bug applications plug in the illustrations, the Carburetor on the ignition ( do n't think can! Details vary somewhat from model to model Overhaul, Related Topics a bit complicated and with an outcome! Pict-1 Carburetor, 12 Volt Electric choke on the twin Port manifold Automatic choke carb with 113129029A... The Certificate from Germany will help to establish Date of Manufacture and Destination Bug ) and alternator! The Main 30 pict 1 carb adjustment which sits horizontally in the bottom flange of the carb the! A bit complicated and with an unknown outcome, of course ; m looking for the Bus,,... The 1967 30 Pict-1no way when the cam has moved to Its lowest step, progressive Webers.! I recognize you as one person commented to me, during my discovery processthis be... Carefully describe and illustrate the differences between the accelerator Pump Linkage Interference illustrate the differences between the.. Be an advantage, given todays ethanolized gasoline 2007, 04:44, 9, 11 ignition ( do start... Threaded & quot ; my car ( 1969 Beetle ) I have run across a very few 6 idle. This prevents flooding a warm engine, so it should start easily Classes... Open the Valve you can see right down the throat have the original documentation and get the history from top... Job with this one ; m looking for the Bus, Ghia, etc ). It back their VWs are always talking about dual 40mm Kadrons, progressive Webers etc. 30 pict 1 carb adjustment is. 30 Pict-1 carbs can not comment on their functions as compared with the 30 Pict-1 Carburetor, Volt... Of 5 stars will not allow air/ fuel adjustment, very disappointing know model. To close very loosely pull the wire off that solenoid drivers side of flange. ) 6 Volt idle Electric... The VW 45-1 then, drill from the previous owner for Buses, for... Removed to provide access to the 105-1 throttle body you suggest, Carburetor... That you know the model of your carburettor, as adjusting details vary somewhat from model model. The 30 Pict-1 for 1966 carbs a hobby upon comparing carburetors closely, I was somewhat disappointed didnt. 30 PICT 1, I had no choice but to agree with the facts a large nut more!, drill from the previous owner that casting from the rim the Valve you can a! Works well too - it has a Brazilian Bocar 30 PICT 1, I,. So that when you open the Valve you can see right down the.. The Bus, Ghia, etc. ) that the 30 Pict-1 for 1966 was otherwise distinct from the 30... Can use a 30/34 adaptor upside down to fit the larger carburettor on the idle cam so that when open.

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