What you want to look for is the stamping on the base (flange) of the carburetorwhere the carburetor bolts to the manifold flange. carburetor re-build Page 1/3 March, 01 2023 4a1 Solex Carburetor Manual. Since 1967 there is another device on the side of the carburettor with a single wire leading to it. Generator Type: GX200 170F Portable Gasoline Engine. I appreciate your valuable comments! However, the purist in me kept my mouth shut. brass sleeve holding the pump nozzle in place. The non-PFS 66 version, on the left, is stamped VW 83-1 on the manifold flange. 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 the inlet manifold itself becomes a limiting factor. I discovered this misstep too late in the process to reverse it. 7. solex 30 pict-1 accelerator pump operation. Please read my article on 1967beetle.com and follow the sequence of explanations and photos. 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. There is a screw at the front-top of the throttle lever which can be turned clock-wise to come to bear on the idle cam (drivers side again). And, I DO work for you. the carburettor down to the sides of the engine, where it attaches The Carburettor - General Description and Discussion--, 28 Series Carburettors Product Update as of 2/14/2022 * BROSOL has stopped manufacturing these carbs. Hold the accelerator lever backaway from the idle cam on the drivers side end of the choke valve shaft. 34 PICT/3 Carburettor Overhaul, Related Topics These allow better breathing at higher revs for the racers to enjoy, but usually to the detriment of smooth running at low speeds (the engine gets "lumpy" at low rpms). Dont screw it hardjust so that it seats. So, yesboth of these check balls are absolutely essential to the operation of the carburetor. Flooding The 1966 version, from the outside, appears to be the same as the '67 version. Engine is a 1200cc year of manufacture 1961. The H30/31 carburettor has a throat almost as big as the 34 anyway, so you should not see any significant drop in power around town (compared to the larger 34) -- it would probably run out of breath a little sooner at high speed and that's about it. 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. Shop JBugs today for high quality aircooled VW parts! I did notice that. This may take a couple of minutes or so. Havent found one. 30 Series Carburettors Essentially you will have a 30 Pict-1 1300cc carb which would have been for a 66 Beetle. We never have seen a 31 Pict-3 carburetor hereonly the 30 Pict 1, 2 and 3s. I understood the 34 picts fit the wider throated 1600 twin ports. Can I use the 34PICT/3 carburettor on my '69 Beetle? The larger throated 34PICT series allows better (less restrictive) breathing at high revs, so the engine can develop more total horsepower. This will allow the carb to run, although it prob. Compressing the coil spring more will make the pump start working sooner for a longer squirt. jay. Thanks again Jay. Based upon this new information, I dug through my supplies of carbs until I found and separated those from 1966 (1300 engines) and those from the 1967 1500 engines (note that I am speaking about vehicles specifically exported from Germany into the USA through dealerships). Features: Our carburetor is an excellent choice for replacing defective parts, ultra-high performance automatic choke,Improve throttle response for better engine performance. The breastplate is a one-year-only tin as is the air breather. A bit complicated and with an unknown outcome, of course. Or should find a 75-1 instead? Why, I cannot say. 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. Both numbers are situated on the back of the fuel bowl , not on the manifold flange. A side effect of the Solex type is that they can be set to run with just the right mixture at medium (town) speeds -- but the high speeds will then result in a leaner mixture. The PO who replaced the original '73 engine with a '71 simply put the original ancillary 73 equipment back onto it, not realizing (and apparently never discovering) that the larger-circumference alternator was going to interfere with the operation of the accelerator pump. If so what is the part number, and where can I find it. jay, Hi jay,my carb is marked vw 83-1 but it has all the indications of a 105-1 it is drilled out in all the passages you show in your pictures.I took the top off and there are no jets on the top rim,and no nozzle,Im just kind of confused on what type carb I have it seems to be a 105 bottom and 83 top,this is a carb I bought to rebuild so I dont know how it actually performed before I bought it.Thanks, Ah. Activate the little crooked arm on the idle cam so that when you open the valve you can see right down the throat. If you follow the fuel line you will find that it runs forward into the center tunnel of the car and out at the front under the luggage area, where it attaches to the bottom of the Fuel Tank. ball will freeze in place. Let us know what you discover, Russ. We hope that you stay in touch with 1967beetle.com! . Accelerator Pump Learn more . jay. It had NO check ball in the PFS. 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. Fits your vehicle This product was made to fit the stock . Additional thanks to several who made contributions to: I recognize you as one of the knowledgeable persons on the Samba Forums who passes his knowledge to the rest of us! Empi Part# 98-1288-B. You have just pointed out more mysteries to be investigated even more thoroughly! If you look closely on the left side of the carburettor you will find one or two adjusting screws. Ive noticed that the original carb has been replaced with the Solex H30/31 Pict-1. Thats a complicated discussion for some other venue. jay, I recently acquired my very first VW Bug. No difference in the choke heaters. The 30PICT/3, 31PICT/3, H30/31 and 34PICT/3 all have two adjusting screws in the left side (the smaller Volume and larger Bypass screws) and a fast-idle screw on the throttle arm. 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). At any rate, I have run across a very few 6 Volt Idle Cut-off Electric Valves. Rob noted - I've removed the carburettor top maybe ten times and still used the same carburettor top/body gasket with no problems. The larger the capacity, the higher the airspeed through the carb and so the leaner it will run. HELP. Of course, maybe it's the other way around -- maybe the throttle valve is sticking open, which would make the throttle lever open, too. At that point turn the screw out (counterclockwise) VERY slowly until you find the sweet spot where the engine wont run faster. Its function, also, is to prevent back-flow. Now compare the 83-1 with the VW 105-1 which was for the Beetle from 8/66 with a Main Jet of 120, an Air Correction Jet of 125z and with the Power Fuel Supply drilling and a Dispensing Nozzle of 0.50 w/o a check ball. You could always replace the choke to 6V. Illustration #5 shows the bottom halves of both versions demonstrating the PFS drilling into the rim of the drivers side of the carburetor. Learn more . There certainly were. is okay. Upon comparing carburetors closely, I had no choice but to agree with the facts. Remove the air cleaner. Hosted at Dr. Bob's in Louisville Kentucky. It is rather an anti-dieseling device. If you like puzzles, youve come to the right place. . Mine's exactly the same except that it has the original 30PICT/2 carburettor. The later model carburettors have an additional larger bypass screw that is used for setting the idle speed - the fast idle adjustment screw and stepped cam are NOT used to adjust the idle speed on these "two adjusting screw" carburettors. Shown here as an example is a 34 PICT 3 as normally . 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). Then, you would need to find a carb top which would correspond and which would have the PFS Nozzle. The Pierburg 34PICT/3 Carburettor, Adjustment of "Single-Screw" Carburettors So it is often used with a non-vacuum distributor like the 009. There are so many knotty problems with these lovable air cooled cars that I am sure well never solve them, all. I have to see exactly what carb Im running. Dave finally discovered that his throttle lever was sticking because the accelerator pump linkage was rubbing against the body of the alternator. That but caught me way off-guard. The 30 Pict-1 carb is pretty simple, you really don't have many adjustment options. I love these 30 Pict-1 carbs! 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. I speculate that this carb might have been a factory replacement unit. This fuel line runs around to the left side of the engine and toward the front of the car through the fire wall. Ive been asked that before. 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. 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. Both were fitted onto 65 T-2s. Screw it in GENTLY until it bottoms. There are other jets inside the carburettor that are discussed in detail in our article on Jets. Not many here in the USA. If it is the correct one for the 67 Beetle, it will read VW 105-1. I will continue to check to see if I can unearth this carburetor. So i have 3 check balls. jay, Hello, i am Mark and i am from Belgium. On the bottom of the carburettor bowl on the left side is a large nut. Great article, Jay. The Bocar carbs have fallen into disrepute due to some casting problems. 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). Problems tuning a 30 PICT 1 carburetor. 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 So.. Lets talk about how to properly install one. This carburetor is proving to be the most popular choice for restoration enthusiasts. Although I own a stock 6-volt 1966 Beetle (rather than a 1967), I learned a lot of useful information that can be applied to my 30-PICT-1 setup. Below the Volume screw is the idle cut-off solenoid, which stops the engine "running on" when the ignition is turned off. Note: You can test the operation of the idle cutoff valve solenoid very easily. Now unscrew it exactly 2-1/2 turns. Hey I loved the article and as a newbe to VW carbs I already learned a bunch. You mention buying a new carb. My chart shows that the 83-1 did not have the PFS. 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