This old carburetor has no way to adjust for this un . The Engine I have is a 1973 Twin-port 1300 AB code engine. My other beetle has a 34 Pict 3 and I know how to tune that, can anyone recommend a good place to look or method to correctly adjust the 30 pict 1? ball will freeze in place. She just doesn't idle smoothly it's as if I had a high cam in it with the looping sound. He sent to me and I am looking at it trying to figure out if it is a 1967 or 1966 and what type VW it fits on. I didnt think there was anything there as the dirt was light and completely smooth. Lets us knowe-message Eric Shoemaker @: eric@1967beetle.com for information. My neighbor has been into the VW scene here in So. These carbs have a 22.5mm throat. 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. Tuning a Solex 30 Pict-1 Regards, 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. IAP . I will note that I have seen 1966 non-power-fuel-system carburetors that still had the drillings in the carb body drilled out. jay. 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. One is VW 47-1 and above this number it is 9547_0 The check ball prevents back-flow (which would be detrimental, of course). Hi Jay, 65). He was sorting thru his Haflinger parts and came across a cool old plastic gas can that fits in the spare tire and a 30 pict 1 carburetor. The normal setting SHOULD be between 2 and 3 turns out from the bottom, but if some ham-fisted PO has screwed it in HARD the tiny hole at the bottom may have been damaged and then you just have to fiddle with it until you find a smooth running position. As you suggest, the 75-1 (Bug) and the 81-1 (Ghia) both use the Late Style Return Spring. My apologies for not showing the VW 105-1.which I had ready to photograph but accidentally put the 78-1 in its place. Mark, Thanks for responding. I am also in my 70s and havent worked on my 1967 engine in many years and want to buy a new carb. Once the car is running, allow the choke to heat to open the choke valve (flapper). My engine is a 12 volt set up and it was registered as a 1967 VW. We own a '67 Beetle and a '68 Karmann Ghia. Receive posts from 1967beetle.com in your inbox. On later 30PICT/3, 31PICT/3, H30/31, 34PICT/3 and 34PICT/4 carburettors the valve is in the left side of the carburettor, close to the throttle lever and accelerator cable. Also, the 28-series carbs usually have a larger jet in the power fuel system than the 30 series when used with the check ball in the carb body, its delivery was limited somewhat. jay. Kentucky. The following descriptions apply to all types of carburettors -. Now there is a quality guy with a ton of integrity. Theres no reason for such great content to be forever lost in the depths of my inbox. Havent found one. 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. Stay tuned to 1967beetle.com! We think today that nothing can be done without computers! Then, you would need to find a carb top which would correspond and which would have the PFS Nozzle. Both were fitted onto 65 T-2s. 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. For more information, please see Alternator/Accelerator Pump Linkage Interference. Rob responded - Well, yes, that's sort of right. Hello! 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'. 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. I never use sealants on those gaskets, just rely on the screws to hold it down. Now unscrew it exactly 2-1/2 turns. Doubtfulbut remotely possible. 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). You might be able to see bright 'rub' marks if the butterfly itself is binding on the sides, or on the outer edges (near where it closes). jay. Step 1: Check and Adjust Fuel Pressure. If only I had another life-time! When driving, sounds like it's running rich, has the . jay, Thank you for the replies Eric & Jay. But, Ill await your responses to my questions here before I do that. 30-pict III Airscrew Adjustment. Ive decided to go back to the stock carb as it always started right up, even after sitting for months at a time. Jay, The true 67 carburetor had only the 12 volt choke heater (dismiss any thoughts about a 6 volt choke heater). And so, I was brought up short when my friend announced to me that there were two versions of the 30 Pict-1 carb for USA import Beetles. Give this a read, while we are doing some research for you. Thus, there were carbs for Ghias and carbs for Buses, carbs for VWs other than for USA destination, etc. 5. There is an air screw on the driver's side of the carb. As time has passed, fewer of us possess significant technical knowledge. Another very interesting and certainly useful article from Jay. Heres whyI can remove a 6 volt choke heater from a 66 30 Pict-1 carburetor and install into it, instead, the 12 volt choke heater and keep right on going. carburetor re-build Page 1/3 March, 01 2023 4a1 Solex Carburetor Manual. 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. jay, For those reading this Threadheres more on the subject which occurred on separate e-messaging: Hello, Brucecontact Eric, Owner and Site Manager about adding photos to the Comments Section. Generator Type: GX200 170F Portable Gasoline Engine. This is always open (it's called a "constant venturi" carburettor), so there is a huge variation in the amount of vacuum at the venturi, depending on how open the butterfly is, and of course the engine speed. Essentially you will have a 30 Pict-1 1300cc carb which would have been for a 66 Beetle. of hours of experiments by those German engineers. I dont want too fast or too slow. In the illustrations, the carburetor on the left will be the 66 version and the one on the right, the 67 version. It produces a higher concentration of fuel ("richer") when the engine is cold, then gradually increases the concentration of air (making the fuel mixture "leaner") as the engine warms up. Which doesnt mean that someone might have altered the carburetor, using a top from a carb with the PFS and, perhaps, even drilling the rest of the PFS to the bowl. The Factory Engine Displacement would have been 1500ccs. nothing on the flange but stamped on outside of bowl The H30/31 also tolerates the 009 distributor better than the 34 sized carburettor -- less likelihood of flat spots. That but caught me way off-guard. Markwhy dont you use the 31 Pict-3 carb? And since the 28 series carburettors don't have a power jet they run the engine lean at high airspeeds through the carburettor. Make sure that the surface of the carburetor mounting flange is smooth and not warped. Hi Jay. The script on the decklid only says Volkswagen There are so many knotty problems with these lovable air cooled cars that I am sure well never solve them, all. This Site is owned and managed by a good friend of mine: 1966vwbeetle.com. Solex 30PICT-2 Carburetor VW Volkswagen Beetle Bug. The air correction jet size is very important when using a smaller carburetor on a larger engine. Additional thanks to several who made contributions to: Just tighten firmly. Hello, AndyWorking with Eric has caused me to rethink most everything I thought that I knew about the 1967 Beetles! 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. Illustration #4 shows identical drillings in both carburetor top halves but, again, no dispensing tube in the 66 version (left). Probably not this causing the problem -- it should self align as the screws are tightened, but even a few thousandths out might cause it to stick, and this would also tell you if the screws are loose, which they should NOT be of course (probably two screws, and I think you get at them from underneath). I love these 30 Pict-1 carbs! So great to see a 1967 only site. My Chart tells me this: 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. Any residual gasoline simply would flow back into the bowl and would have no effect upon performance. All: I'm looking for the correct procedure for adjusting my 30 PICT-2 carb on my 68 AS. If left to itself, engine will die. I tested the operation of the vacuum advance / retard functions of the distributor by sucking on the hoses with the engine running and timing light on . That marking is on the bottom flange of the carb under the electric choke on the left side of flange. Theres a good supply of most 6 volt parts. 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. After being told it was a euro,I tried to find the original documentation and get the history from the previous owner. Also, is 1967beetle.com a site that one can join? 234915322652 I scraped off some light dirt on the opposite side, and found VW 75 1 very lightly stamped into the flange. Hello again, RussYesthis does sound exciting. Miscellaneous Topics Related to Carburettor Tuning, Carburetor Overhaul Hello again Eric, I had an opportunity to pickup a very nice and clean 66 beetle. Turn clockwise VERY slowly in until you hear the engine begin to slow. Read more . I think that most switches dont care whether it is 6 or 12 volts. I speculate that this carb might have been a factory replacement unit. I agree. 1967 VW Beetle. Seriously useful info for most of us playing with out 67s. 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. There is more to the Power Fuel Supply system than just that tube. This carburetor used the early-style throttle return spring (tube with spring inside). Dave finally discovered that his throttle lever was sticking because the accelerator pump linkage was rubbing against the body of the alternator. Find the automatic choke. Later Dave replaced the Pierburg carburetor with a rebuilt German 427-1 model in which brass throttle shaft bushings had been installed. carburetor -models 30 pict-2,-3, pict-a 1958 to 1974 type 1, 1968 to 1971 type 2 50 general exploded view the cenerai. If you do not hear a clicking sound, check to make sure there is power (12 volts) to the wire (small trouble light, voltmeter, etc.). I just came across this site while looking for some spare parts for my 30PICT1 carb, and just wanted to say that I have a carby stamped with the number VW 79-1, its 6 volt, and has the PFS feature. Thanks for contacting us! If it's not working, you won't get a proper idle, and you'll get rough running at traffic speeds, too. Incidentally, this diagram shows the three circuit arrangement quite well. Receive posts from 1967beetle.com in your inbox. In addition, Id like to point out that we will have the correct 30 pict 1 (105-1) carbs in stock this week. PICT 30 VS PICT 30-2. 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). It probably is most suited to this enginejetting, etc.since apparently it was designed for this engine. 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. Jay, As you suggest, the 75-1 (Bug) and the 81-1 (Ghia) both use the Late Style Return Spring. 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 !) Let us do some quick research. You may find it easiest to simply note where the clamp goes on the cable end in this position (wide open), then let up on the pedal and make the connection with the system relaxed. He is going to want to know which carburetor you have. I am talking about the one with the PFS. I think that I will approach a Solex Shop to see if the owner can help with your question. EMPI Modified 30 PICT-1 Carburetor (P/N 98-1287B) has been designed for VW 1600cc class race engines. [* WordPress Simple Firewall plugin marked this comment as trash. 640867 Unfortunately, this 30 Pict-1 (VW 78-1) is for a T-2 (BusAug. 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. These have two throats, a smaller one for idling and gentle cruising about town, and a larger throat which only opens when you step on the gas. I discovered this misstep too late in the process to reverse it. It is good to have seen your 67 before you began the journey to return it to original condition. jay, I have a 65 vw beetle convertable 6V with 28 PICT-1 carbureter. Mark, you are most generous with your commentsthank you. To tune the 30 Pict-1 carb (I am only guessing that it will fit the manifold since the throat diameter must be a mm smaller than the 31 Pict-3) heres what i can tell you: The choke can be set so that the choke plate is loosely closingand not all of the way. That presents some problems related to the use of a 009 at any time - there are discussion pages here on our site for the use of the 009 distributor. Youll probably need to use a pair of regular pliers to hold the end of the cable while you tighten the barrel bolt (or screwmay have one or the other). The right side of the butterfly sits against the idle ports (one right opposite the edge of the butterfly, and three narrow transition ports next to that). 360-894-8787 tim@volkzbitz.com http://www.volkzbitz.com. Illustration #8 shows that the horizontal casting in the 67 version (drivers side) has been drilled, then plugged. There certainly were. If so what is the part number, and where can I find it. Adjusted jetting is idle 55, main 127.5 or 130, air correction jet untouched at 125, and power jet 65. 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. Solex 30 pict/2 carburetor adjustment procedures. to the Cylinder Heads on either side. Be sure to look for the stamping on the flange. Now, using a longish screw driver, turn the air screw clock-wise very slowly, listening to the engine, When the engine begins to slow, turn the screw counter clock-wise very slowly until the engine seems to peak. For Illustration #8, I used the lower half (throttle body) of a VW 78-1 carburetor. This valve shuts off the flow of fuel when you turn off the engine, to prevent "running on." Be sure the wire is connected and that it runs to the (+) terminal on the coil. 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. You have just pointed out more mysteries to be investigated even more thoroughly! I appreciate your valuable comments! Thanks to Jay and Eric for my education in many things 1967 Beetle. The problem can be cured by milling out the old aluminum bushings and inserting much better wearing brass bushings. Learn more . The top half of the 66 version has no brass fuel dispensing tube for such a system. 1. 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. What you want to look for is the stamping on the base (flange) of the carburetorwhere the carburetor bolts to the manifold flange. Area 2 - Carburetor Installation & Adjustment. And, I DO work for you. Restored German. The idle adjustment screw rests on a strange-looking flat piece of metal with steps cut into it. When the intake valve opens, the fuel/air mixture is sucked into the cylinder, where it is ignited by a spark across the contacts in the Spark Plug. 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).
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