We hope that you stay in touch with 1967beetle.com! Hello, BruceWhoopsyes, author error. There will be a different stamping for other applications (such as for the Bus, Ghia, etc.). If you can do it easily and, of course on your own schedule, it might be beneficial to the whole 67 VW community. But, you dont want to leave it hanging slack, either. Thanks for commenting. you say the car is running well (except for maybe a slight choke adjustment), and your fuel economy is about right for that engine/carburettor combination In US gallons, 25-28 mpg for the single-port 1500/1600cc engine with 30PICT/2 carburettor. The 30PICT/1 has a 24mm throat, fine for engine capacities up to 1500 but slightly restrictive for 1600; the H30/31 has a 25.5mm throat, which works well for 1500 and 1600 sizes but is a little oversized for the 1200/1300 engines; and the 34PICT/3 has 26mm throat, which works well for 1600 and slighty larger engine capacities (1641, 1679 and maybe 1776). Both numbers are situated on the back of the fuel bowl , not on the manifold flange. This is the throttle lever; the cable is the accelerator cable. 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. Shop JBugs today for high quality aircooled VW parts! . 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 agree. Great article, Jay. I recognize you as one of the knowledgeable persons on the Samba Forums who passes his knowledge to the rest of us! The chart which I use does not indicate 6 volt or 12 volt. 1 Dual Fuel Carburetor Kit. PICT 30 VS PICT 30-2. Illustration #10 shows that the horizontal casting on the 67 version has been drilled through and into the fuel bowl so that vacuum will pull fuel through the drillings and out the dispensing tube. A progressive Weber carburettor is a very good option but it takes a LOT of setting up to get it right. Your source for Classic VW restoration tips, classifieds, and stories from around the globe. The ideal fuel/air mixture is called Stoichiometry. The 67 Beetle always has been our favorite year. 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. How to set the 34pict/3 carburetor on an aircooled volkswagen (vw) beetle. 2 - Assembly Easy Explanation of Solex Carburettor How . Kentucky. Turn it in slowly until it bottoms. Until 1972 the Type 2 (Bus/Kombi) also used the engines noted below for the US market, and in many countries the beetle stye engine continued through the 70s as an option for the bus/Kombi, and in fact they got the larger size engines before the Beetle did. I hope that this helps. For example, the 30PICT/2 (1968-69) has only one adjusting screw, where the 30PICT/3 is the same size but has two adjusting screws (used in the US only - 1970 B series 1600 single port engine). Brazilian Solex uses the name Brosol, instead. I dont know. 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. You pose an interesting question. 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). VW Solex Carburetor 30 PICT 3 For Air-Cooled Volkswagen. 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. Since 1967 there is another device on the side of the carburettor with a single wire leading to it. I hope that you will keep 1967beetle.com informed of your findings and progress. Thanks, Jay, for all the details and to Neva for the great pictures. Thank you for responding to the Article with your question. At least, this is what my charts tell me. Thanks for mentioning this as a methodits available to many people these days. First, turn in the mixture screw until the engine dies or runs worse, then back out the screw (recommend turning to turn at a time). So it is often used with a non-vacuum distributor like the 009. Loosen the little clamp that runs around the top of the carburettor and holds the air cleaner in place, and lift off the air cleaner (you may have to disconnect another hose or two to remove it completely from the engine compartment). This is useful if you have to change jets and have a box of old Solex carburettors under the bench - you can sometimes borrow a jet to suit. Its amazing. The Mexican BoCar carbs are inherently faulty from the factory. Carburetor For Score Approved Volkswagen Beetle, Vw Bug Applications. one for each intake valve, since the split occurs in the intake But that the 30 Pict-1 for 1966 was otherwise distinct from the 1967 30 Pict-1no way. This prevents flooding a warm engine, so it should start easily. 3. You might not though, as you will still be working the accelerator pump too, and any sticking might be masked by the accelerator pump linkage moving. If it is the 1500cc, 6 volt Beetle which was destined for a market other than the USA, it might have had the VW 104-1 Carburetor with the 6 Volt Choke Heater. jay. That but caught me way off-guard. Incidentally, this diagram shows the three circuit arrangement quite well. Have you checked and gapped the plugs lately? 12 volt choke heaters are available used (see http://www.thesamba.com) and newsee any number of Online retailers. Any residual gasoline simply would flow back into the bowl and would have no effect upon performance. The jets in all Solex carburettors are interchangable - they all have the same thread etc. That's why those who race their VWs are always talking about dual 40mm Kadrons, progressive Webers etc. I have e-mailed Eric Shoemaker regarding rebuilt carbs. What does the bypass screw do? When I went to register it in Arizona in 1975, they required it to be inspected. Search Close Menu Close Classifieds. Hello! Welch Plugs, Carburettor Interchangeability Illustration #8 shows that the horizontal casting in the 67 version (drivers side) has been drilled, then plugged. Float Needle Valve Jay really did a great job with this one. Slightly loosen the 3 screws on the ceramic choke element retaining ring. Its function, also, is to prevent back-flow. eric@1967beetle.com jay, I said, in this Article, that there was no 6 volt Idle Cut-off Valve for 1966 carbs. His son was the one who sold us the car. 28 PICT vs. 30 PICT-3. Its whatever electrical you install into it. I drive a '67 Beetle daily and love to share vintage Volkswagen stories with the world. My chart shows that the 83-1 did not have the PFS. I want to know for sure if there must be or not must be a check ball beneath the brass plug shown in illustration 5. 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. of corrosion inside the passages and sometimes the. I know that someone is going to catch this sooner or later. Easy to order at Paruzzi classic Volkswagen supplies via Referncia Paruzzi: 32115, Volkswagen referncia 341129881C I found a card in the glove box with a Chassis # 117 233 527 and an Engine # HO4520733. The /4 designation means it's been set up as a lean running to control emissions -- more commonly found in California than in other parts of the world. You mention the number codes on the flange. The Spring was secured inside the Tube using a special Split Washer. 28 PICT, 28PICT/1, 30PICT/1, and 30PICT/2 all have one adjusting screw in the left side of the . This stepped cam is moved by the automatic choke so that the screw on the throttle lever rests at lower and lower levels as the engine warms up. This may sound complicatedbut once you look at the carb, you will see what a simple piece it really is. Hello again, RussYesthis does sound exciting. 2. However, upon closer inspection, one can see that there is a drilling that is not continuous in the 66 version, whereas the drilling in the 67 version IS continuous and contributes to what is called the Power Fuel System. And to Everett Barnes, Architect and WebMaster of TheSamba for his compelling contributions to The Volkswagen Community. 46-1 (Ghia) and 47-1 (Bug) use the Early Return Spring System However, the purist in me kept my mouth shut. They just were not specifically for the 1967 Beetle. Of course, Volkswagen trained and certified specialists knew of all of these differences and didnt switch carburetors from one car to another unwittingly. 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. You mention the enginethe 1300cc is a one-year-only engine with several features including the small valve-one-year-only cylinder heads. There is an air screw on the driver's side of the carb. Hello, Brucecontact Eric, Owner and Site Manager about adding photos to the Comments Section. In fact, we raised our family in these cars. Rob wrote - The normal VW carburettors have just one throat (venturi). 28 PICT-1, 30 PICT-1 and 30 PICT-2, remove the idle mixture screw and spring. It was dedicated to the 1300cc Beetle but is dated 8/67. Another amazing tutorial Jay! Thank you Jay for the time and knowledge! 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. 07 October 2007, 04:44 . Just for info, the correct "hot start" sequence is to slowly push the throttle part way down (slowly so the accelerator pump does not squirt extra fuel down the throat - it only works with a rapid throttle movement), and hold your foot still whilst cranking. My question is can I still get a new choke unit for this carb. There is an air screw on the drivers side of the carb. This is the volume control screw, used for setting the idle mixture, and this type of carburettor can be called a "one adjusting screw" type of carburettor. Hello again, DanRight. Part Number: 113129029HJB $109.95. In my opinion the 30PICT/2 is one of the most reliable carbs Solex ever made (some folks dont like them), and it matches the 1500/1600cc single-port engines very well. Since air and fuel do not flow the same, the metering of fuel is NOT LINEAR. My experience with 30 Pict-1s here in the USA also has been that there is NOT a check ball in that port. Glad that you found the identification. I am completely unfamiliar with the 1300 twin-port engines. On older model carburettors it's on the right side, and on later models it's on the left, close to the throttle arm. In so doing, I had to register it as a 1975 Reconstructed Vehicle. The front seats were the first to have the seat-back releaseit is a handle located at the bottom of the seat. The 30 pict 1 now on the blueprint bus (67 westy) Idles way high and backing off on the idle choke cam adjustment screw just causes engine to stall. Restoring A Vintage Volkswagen Bug. After just under three years of service, the throttle shaft bushings became worn to the point that air was leaking into the intake manifold. Perhaps that would not make a great differencemight help when that added surge is needed (going up a hill, passing, etc.). 30/31 PICT-3 Type 1 & 2 Bug Bus Ghia. There certainly were. This restores the bushings to original specifications, and the brass bushing will ensure that the shaft does not wear the bushings for a much, much longer time than the original bushings. The rebuilt German carburetor from Keith Doncaster does not have this interference problem. The Japanese cars used to use them a lot. Also, is 1967beetle.com a site that one can join? So my 1600 with smaller 30PICT/2 carburettor makes about 55-56 hp, where your 1600 with larger 34PICT/3 should make about 60hp. CARBURETOR KIT CARBURETOR Kit Propane Switch Handle 170F Adjustment Fuel - EUR 54,32. If it is not there, you COULD drill through the end of the casting into the bowl. Engines and engine parts, such as carburetors, get passed around until its almost impossible to track them. At the bottom of the carburettor is a second butterfly valve, the Throttle Valve (you can't see it, but trust me) which opens to supply air and fuel to the intake manifold and on to the engine. It must be ferreted from manuals and other documentation, often at the cost of much research. No difference in the choke heaters. Thank you for stimulating our collective brains! The matching Distributor would have been 131-905-205 and the engine displacement would have been 1500ccs. Thanks to Jay and Eric for my education in many things 1967 Beetle. Rob responded - Well, yes, that's sort of right. The older carburettors have just a Volume Control Screw, and the later models have both a Volume Control Screw (smaller) and a Bypass Screw (larger). 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. I don't quite understand what you are trying to achieve though ? 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. Hang onto that, my Friend! Now, back it out 1-1/2 turns. I enjoyed working through this issue. It has been stored, unused for a long period. Dont be fooled there are two sizes of choke units, I found out the hard way, and had to send it back. The sunroof is a real jewel to add to the car! This is a great forum for our 67 Volkswagens. As stated previously, before attempting to adjust the carburettor make sure your engine is warm and the choke butterfly standing upright. So the 34 copes with this by using 3 fuel circuits - idle, low speed and main. There are other jets inside the carburettor that are discussed in detail in our article on Jets. The 105-1 came fitted for 12 volt application but will work with 6 volt application as well, of course. The VW 45-1 appears to have been for a 66 Bus (T-2) beginning in 8/65. Setting the 34PICT/3 carburetor. We think today that nothing can be done without computers! 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. Restored German. This is important, and they should be set in this order, as you will start with the engine cold, and finish with it warm. Note: Before adjusting the carburettor, it is essential that the accelerator cable be properly adjusted. 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). 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. 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). jay, For those reading this Threadheres more on the subject which occurred on separate e-messaging: 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. More gasoline upon demand than the VW 105-1 could dispense. jay, Hello, i am Mark and i am from Belgium. Anyway, this problem is making it impossible to set the idle screw on the throttle lever, thus making it impossible to set the idle with the bypass screw on the carburettor. I made a statement in my article saying that it would take much investigation to determine the differences for carburetors for Karmann Ghias, T-2s and Beetles both in the USA and abroad. Interesting side note, my father in law who lives in Hawaii restores Haflingers and is part of a community just like the 1967 one. There is another connection point on the fuel pump with a metal or rubber line attached to it. Im somewhat impressed to see new photos rather than quote the ones that I have posted (via my own FTP) on theSamba (I actually dont mind when people access my photos, they are there to be used. Solex and Kadron Carburetors should have 1.5 - 2 PSI fuel pressure. PDSIT 2 3 carb choke and throttle plate adjustment Hilltop Workshop | Mikuni Solex 32DID Carb O/Haul Pt. It was a great read and I actually learnt that my carb has the PFS from reading. jay. And, I DO work for you. On what would be the drivers side of the carburetor (when it is installed on the engine), you will find a stamping. The VW 83-1 Carburetor was an unusual carburetor (from my perspective). Ive had my Manx for 41.5 years. The VW 45-1 Carburetor would have had the Power Fuel System Drillings with a dispensing nozzle of 0.75 and no check ball in the Power Fuel Drillings. It is possible that the 79 (which is missing on my charts) may fit into the scheme of things for the 66 and 67 T-2s. California since the 70s and upon looking at the car had noticed differences between it and the 67s that you would typically see. And because we of 1967Beetle.com are concerned with Beetles, and, specifically 1967 Beetles, my comparisons will be limited to the 66 and 67 Beetle versions of the 30 Pict-1 carburetors. Meaning all.lol, saves the photo storage. . Thanks again guys All great stuff. earthquake Cast Iron Member Posts: 91 Joined: Sun May 30, 2010 2:54 am . Illustration #1 pictures both German Solex 30 Pict-1 versions. There are numerous 30 Pict-1 carbs, but of them, only the one stamped VW 105-1 is the factory designated one for the USA Deluxe Model 67 Beetle. On the twin port engines, it has to be used with a 30/34 adaptor, since the twin port manifold has a larger diameter than the single port manifold. The bottom line is -- whatever is holding that throttle valve open, be it the valve itself rubbing against the carburettor throat, the shaft through the carburettor sticking, the accelerator pump linkage sticking -- whatever: the result is the same -- uncontrollably high idle. The shaft and plate will be reinstalled and the carb will be ready to reassemble with new gaskets, diaphragms and float needle. I hope that this helps. Carburetor throttle return spring. Jay, But, Ill await your responses to my questions here before I do that. We never have seen a 31 Pict-3 carburetor hereonly the 30 Pict 1, 2 and 3s. :). I thoroughly enjoyed your article and precise style of writing! The Pierburg 34PICT/3 Carburettor, Adjustment of "Single-Screw" Carburettors When driving, sounds like it's running rich, has the . . Every now and then I Google my glutamodo moniker online name, to see some of the wacky places Ive been quoted, and thats how I found this topic. Honestly, pretty excited about it! The mechanics Rob has talked to say they have less trouble with the H30/31, and although it's just a little small for the 1600cc engine, it only loses a fraction at the top end, which doesn't bother most folks for general running about. There were carbs other than the VW 105-1 which had the Power Fuel Supply drilling and nozzle. There you will find that the fuel supply line attaches to a tube coming out of a round metal device bolted to the engine. 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 3. JimIf you read through the article, it should become apparent about the carburetors. Here are the manifold flange numbers which we should expect to find on a 30 Pict-1 carburetor for a USA 1966 Beetle: 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. Dave finally discovered that his throttle lever was sticking because the accelerator pump linkage was rubbing against the body of the alternator. He will sell you the correct part which you need. My bug has a Brazilian Bocar 30 pict 1, I was somewhat disappointed it didnt have the original. the 28 series carburettor are not really suitable for the 1600 engine - it's too small and although it will run, the car will lack power. Words by the amazing, Jay Salser. Any comment on this? 34 PICT/3 Carburettor Overhaul, Related Topics jay. And the fractional LEAN hesitation would be part of the cause too. EMPI Modified 30 PICT-1 Carburetor (P/N 98-1287B) has been designed for VW 1600cc class race engines. Hello, again, markYou must live other than in the USA. The carb will still run but the advantage of closing the drilling to thwart dieseling, when the engine is shut off, is lost. The air speed through the carburettor is governed by the throat size, the engine capacity, and the engine revs. These have a 24mm throat. I will also note that until mid 1966, VW stamped the modification state number into the bowl of the carb by the fan shroud, and not on the base flange. So the inlet manifold itself becomes a limiting factor. Mark, you are most generous with your commentsthank you. Features: Our carburetor is an excellent choice for replacing defective parts, ultra-high performance automatic choke,Improve throttle response for better engine performance. There is more to the Power Fuel Supply system than just that tube. I want you to contact the following person. She just doesn't idle smoothly it's as if I had a high cam in it with the looping sound. If so, how does one join, as I cant find anything on the site to do so. 34 Series Carburettors Thanks for coming back to me, youre right, Im in the UK so a non US vehicle. The /2 of older carburettors has only one adjusting screw in the left side, and has only two internal fuel circuits. Jay- how do we add a photo or picture to our comments? 1600, 009, 30 PICT-1. 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. Help Adjusting 30 PICT-2. 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. If so, i thus have 3 check balls. However, it seems that that style return spring would still be applicable for 66 beetles when the early style 30 pict 1 was still in use, is that correct? [* WordPress Simple Firewall plugin marked this comment as trash. You can expect to wait for a good number of months for the documents. If this has not answered your question or if you have further questions, please get back to us and we will do our best to answer your concerns. 5. Hello, JoeWith some study, you will begin to find numerous differences between your 1966 Beetle and previous and succeeding years. 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. Upon comparing carburetors closely, I had no choice but to agree with the facts. Be sure to look for the stamping on the flange. The Spring was secured inside the Tube using a special Split Washer. jay. 1967beetle.com is such an amazing resource. I did notice that. TheSamba and to Andy T. who compiled data from several sources. 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. Thanks for visiting us! Im now smarter and saved to home screen, the whole articles I need. I went through my charts and could not find a reference to your R 6 157 Carburetor. This forms the air-tight seal which is required. Is this the stamping on the drivers side of the lower flange? Every source I have looked at only . Thanks again for your knowledge. Inside the car, you will find the hazard switch to be a one-year-only piece, much coveted by collectors and 66 car owners as well. Carburetor Repair Kit. Hello, MarkI understand now. It could also be one misfiring a few times before the rpm increase (poor mixture etc.). Thus, the PFS Nozzle could/would be of a different size. Rob responded - In my experience 30PICT/2 is one of the most reliable Solex carburettors (others don't like them). The check ball prevents back-flow (which would be detrimental, of course). When you bolt on the carburetor..you want to snug the carb to the manifold flange but dont try to wrench it with all of your might. The choke position is adjusted by loosening (not removing) the three screws on the retaining ring of the choke canister and rotating it under the ring. So i just want to know if the check ball under the brass jet-plug who leads to the pfs dispensing tube is necessary. I hope that I have covered the bases. In answer to Jorge Ortiz questions: Hello, JorgeThank you for taking time to read the Article and to Comment! Screw it in GENTLY until it bottoms. Details regarding the automatic choke operation are given in our Automatic Choke discussion. Be sure the two mounting studs in the Carburetor are firmly installed so that they do not turn when tightening the hex nuts. Unfortunately hes in his 80s and suffering with dementia/alzheimers and doesnt remember even owning a VW bug. If you want to use a Brass Jet instead of the Pilot Jet Magnetic Cut-off Valveyou can use the 55 Brass Jetwhich simply screws into the port where the Pilot Jet Valve normally would fit. Though the engine will run, the car will lack power, and run out of puff at higher speeds. Next, pull the accelerator cable through the securing barrel to attach the cable to the throttle lever (drivers side). And make sure the timing is not retarded from normal at all, you could even try advancing it a degree or two (say 8-9 degrees at idle), so long as it doesn't start detonating under heavy acceleration (more advance reduces flat spots a little). 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. Contrast the Main Jet of the VW 105-1 for the 67 Beetle which would be120. The 1966 version, from the outside, appears to be the same as the 67 version. There are two numbers on my carburetor. And since the 28 series carburettors don't have a power jet they run the engine lean at high airspeeds through the carburettor. The VW 105-1 Air Correction Jet would be 125z. This procedure also applies to the 30PICT/1 and 28. series carburettors having a single adjusting screw. Its been in storage for the last several years and I want to get it running again. Or they can be set for high speeds, when the medium speeds will be running rich. The new bushings will be bored to match the steel shaft. 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. I have a Zenith blue 67 Convertible that Ive restored . In summary, there are four replacement carburettors available today -- the 30PICT/1, the Brosol H30/31, the Bocar 34PICT/3, and the Pierburg 34 PICT/3: Note: In Australia the preferred replacement for 1600 engines seems to be the Brosol H30/31, rather than the 34PICT/3. Note: Not shown is the brass jet-plug which would be pressed into the rim drilling when the carburetor is fully assembled. is bolted to the top of the Intake Manifold, a metal tube Jeff, so you can put a 1967 pic 30 pict on 1966 bug ?but not vise a versa ? Then, drill from the rim of the throat into that casting from the top. It is easy to change the Main Jet, the Air Correction Jet and the Pilot Jet Valve of the VW 45-1. Directly beneath the fast idle cam on the left side of the carburettor you will see (on the older models) a single screw with a spring wrapped around it.