30 pict 1 carb adjustment

If left to its own devices, the engine will die. Hang onto that, my Friend! It remains consistent that for the 1967 Beetle destined for consumption for the USA market, only the VW 105-1 was the carburetor of choice. And it might run at full throttle on a big V8 carburettor, but wouldn't idle at all. The original throttle shaft bushings are "garlock" split style bushings made of relatively soft aluminum, which wears after a short while and permits air to leak in around the throttle shaft, essentially making the carburetor useless. The bottom of the carburettor jay. Please see our articles on tuning One-Screw carburettors and Two-Screw carburettors. 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. 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. 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. There are questions enough to go around when one gets into Volkswagens. 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. Hi, FrankIt was my pleasure to review for the Readers of 1967beetle.com what I had been studying. I speculate that this carb might have been a factory replacement unit. 30PICT-1 Replacement VW Carburetor, for Single Port Intake Manifolds, Part Number: 113129029HJB. 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'. Fuel System Repair Manual. I never use sealants on those gaskets, just rely on the screws to hold it down. All Dellorto and Weber Carburetors should have 3 - 3 .5 PSI. [* WordPress Simple Firewall plugin marked this comment as trash. Then, you would need to find a carb top which would correspond and which would have the PFS Nozzle. Hopefully the gasket between the carburetor base and the manifold flange comes with the carburetor. Thanks for jumping in on that one. Intake Manifold 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. The 30 Pict-1 is not suited for a dual-port engine. Hello, BruceWhoopsyes, author error. Let us know what you discover, Russ. 12 volt choke heaters are available used (see http://www.thesamba.com) and newsee any number of Online retailers. If you like puzzles, youve come to the right place. I thoroughly enjoyed your article and precise style of writing! There are 3 screws securing the choke ringwhich keeps the choke element in its intended position. Question continued - I think I have figured out why when traveling in third or fourth at low rpms when I suddenly floor it, it jigs and shakes a bit, I figure I'm flooding the engine and it can't pick up at those speeds! The matching Distributor would have been 131-905-205 and the engine displacement would have been 1500ccs. VW 83-1 with the late style throttle return spring. Not many here in the USA. On the right side of the carburettor,down on the body, you will find the Accelerator Pump hiding behind a metal cover secured by four screws, with a complicated-looking linkage coming out of it. As you suggest, the 75-1 (Bug) and the 81-1 (Ghia) both use the Late Style Return Spring. jay, Thank you for the replies Eric & Jay. Help Adjusting 30 PICT-2. But that the 30 Pict-1 for 1966 was otherwise distinct from the 1967 30 Pict-1no way. Thank you for signing up! Brosol H30/31 Carburettors One in the bottom of the fuel bowl , one under the brass jet- plug wich would be pressed into the rim drilling when the carburetor is fully assembled. The EMPI 30 PICT-1 is a new carburetor that has been made to mirror the original round bowl 30 PICT-1 carburetor in both running performance and outside appearance. Note: Before adjusting the carburettor, it is essential that the accelerator cable be properly adjusted. Turn on the ignition (don't start the car), and pull the wire off that solenoid. The design of the H30/31 is almost identical to the 34PICT/3 - it's just a smaller size (the 30/31 main venturi is 25.5mm, the 34 has a 26mm venturi). (To clarify: In the single-port design the port splits INSIDE Later twin-port 1300s (after 1971) - not sold in the USA - have a 31PICT/3 carburettor, which has a 25.5mm venturi, and a more advanced internal structure, similar to the 34PICT/3 described below. Fits your vehicle This product was made to fit the stock . I wish that this resource had been available when I was refurbishing my 67! Find the automatic choke. Now that it is determined that mine is a 12 volt 67 carb. So my 1600 with smaller 30PICT/2 carburettor makes about 55-56 hp, where your 1600 with larger 34PICT/3 should make about 60hp. I did notice that. Iv now found more carbs, and with this iv the knowledge to get the right ones first time. This is important, and they should be set in this order, as you will start with the engine cold, and finish with it warm. Meaning all.lol, saves the photo storage. Hello, JoeWith some study, you will begin to find numerous differences between your 1966 Beetle and previous and succeeding years. Those carburettors use a different . 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? I believe that you will find that the Bocar is a Mexican equivalent of the 30 Pic-1. You mention buying a new carb. Since it is a 6v, will that make parts even harder to find? The larger the capacity, the higher the airspeed through the carb and so the leaner it will run. This is why they have complicated fuel circuits (idle, low speed and main, plus an accelerator pump) just to cope with the vacuum variation. Any residual gasoline simply would flow back into the bowl and would have no effect upon performance. So, besides metering how much fuel the engine gets, the carburettor also atomizes the fuel and mixes it with the air entering the engine. 46-1 (Ghia) and 47-1 (Bug) use the Early Return Spring System 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. Both were fitted onto 65 T-2s. Jets I hope that you will keep 1967beetle.com informed of your findings and progress. 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. 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 smallest carburettor that 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). It had NO check ball in the PFS. Note: You can test the operation of the idle cutoff valve solenoid very easily. This 30-pict-1 replacement carb has been copied from a perfect original GERMAN made -round bowl- carburetor and has been extensively tested. I dont advise doing that. As you said in one of your notes, if the throttle valve is not seating properly (i.e., 0.004 inch open) it will interfere greatly with the normal IDLE flow -- i.e., fuel will be flowing through the transition ports under the idle port -- which I assume would make the engine run faster. 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. Screw this screw completely into the carb. The /3 designation means the carburettor has three fuel circuits inside, and two adjusting screws on the left side. Mark, In so doing, I had to register it as a 1975 Reconstructed Vehicle. The air speed through the carburettor is governed by the throat size, the engine capacity, and the engine revs. 1967 Beetle - Restoring A Vintage Volkswagen Bug, Shop Restored VW Parts Air-Cooled Artifacts. So i have 3 check balls. on the top of the carburettor bowl. 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. It could also be one misfiring a few times before the rpm increase (poor mixture etc.). The Mexican BoCar carbs are inherently faulty from the factory. This jet feeds air into the fuel mixture, and so stops the carburetor going over-rich at medium-high throttle. Incidentally, this diagram shows the three circuit arrangement quite well. Hello, Andy! Besides the engines (1300-1500) and carbs was there any other significant differences between the 66 and the 67 beetle? If so, how does one join, as I cant find anything on the site to do so. Thanks, Jay, for all the details and to Neva for the great pictures. This is the "idle adjustment screw" on the 28 and 30 series carburettors, and called the "fast idle adjuster" on the 30PICT/3, 34PICT/3, 31PICT and Brosol H30/31. 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. The chart which I use does not indicate 6 volt or 12 volt. Ive been asked that before. 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). 2. Top. I want you to contact the following person. I don't quite understand what you are trying to achieve though ? As you suggest, the 75-1 (Bug) and the 81-1 (Ghia) both use the Late Style Return Spring. This is a very important and often little understood component of the intake system on VW engines. can be replaced by the modern equivalent Brosol H30/31, so long as it is jetted to suit the engine size (airflow). Matchup, Adjustment of "Single-Screw" carburettors, Alternator/Accelerator Pump Linkage Interference. Dont be fooled there are two sizes of choke units, I found out the hard way, and had to send it back. When driving, sounds like it's running rich, has the . If so, i thus have 3 check balls. It's important to set the valves, points, timing and to check the choke before setting the carburettor, as they all work together for a smooth running engine. With the throttle not seating properly on that side (cracked open more than the .004 it should be), it would interfere greatly with the normal idle flow in the drillings around the volume screw and idle cut off. Now, scroll downwardslooking on the right hand side. The Factory Main Jet would have been 115. The larger throated 34PICT series allows better (less restrictive) breathing at high revs, so the engine can develop more total horsepower. Thank you for your patience! . Super nice. Made in W. Germany It is good to have seen your 67 before you began the journey to return it to original condition. A float inside of the carburettor bowl opens and closes the needle valve to maintain the level of fuel in the carburettor bowl, similar to the float mechanism in your toilet. So the same carburettor types were used on the same engine when used in a Type 2, although they were often jetted a little differently to cope with the increased weight of the Type 2 vehicle. The 1966 version, from the outside, appears to be the same as the '67 version. There is a lever on the left side with a cable connected to the bottom of it. Keep loving your air-cooled VW, Frank! My pic 30 saids vw-75 on the flange. Every source I have looked at only . 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. ZU VERKAUFEN! Eric it would be nice if there was a print option for articles like this. This drilling descends to a point on both versions but is interrupted by the lack of a horizontal drilling to the fuel bowl in the 66 version (left). Read more . :). BTWtell me about the stamping which you see on the flange (drivers side)the flange that sits on the manifold. I understand a little better the reason for your questions. More gasoline upon demand than the VW 105-1 could dispense. If the car makes a habit of this, its time to rebuild the carburettor and replace the float needle valve, which is included in most carburettor overhaul kits. your engine is Single-Port. 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. I am talking about the one with the PFS. Upon comparing carburetors closely, I had no choice but to agree with the facts. Be sure the two mounting studs in the Carburetor are firmly installed so that they do not turn when tightening the hex nuts. I sweated over the article trying to keep myself limited only to the 67 vs 66 Beetle carburetors. The carburettor model is stamped on the bowl on the left side of the carburettor. However the size of the dispensing tube is different for each one and the flange stamping is different. I dont have too much hope that the 30 Pict-1 is going to get the job done. The Spring was secured inside the Tube using a special Split Washer. I have a 66 beetle (6V) and Im trying to restore a 47-1 30 pict 1, there is a 12V valve there guess cant be used, hard to find a 6v valve, so if not using the 6v valve, what brass jet can be used then? 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. Welch Plugs, Carburettor Interchangeability Hello! when I bought my 67 Deluxe Beetle two years ago in San Diego, California, USA, it had a miss-mash of parts on it from who knows when. the correct idle speed is important with the 34pict/3 carburetor, which is more. design eit.tovvn will 24 t removing . What year is that ? I sent it to eric@1967beetle.com, it that correct? The 1600cc DP can flow more air than the 1600cc SP and smaller engines. Status: Offline. The main jet is located in the float bowl behind . Alan, As you can see there is no adjustment of these jets except by removing them and fitting ones with different size holes so its these jets that should be. Hello, again, markYou must live other than in the USA. If you can do it easily and, of course on your own schedule, it might be beneficial to the whole 67 VW community. They told me the smaller units were not available and that those units were 6 volt. 1. Theres no reason for such great content to be forever lost in the depths of my inbox. jay. Doubtfulbut remotely possible. It probably is most suited to this enginejetting, etc.since apparently it was designed for this engine. Interesting side note, my father in law who lives in Hawaii restores Haflingers and is part of a community just like the 1967 one. . 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. Ok - original lean jetting for the H30/31 is tipically idle 65, main 120 (or smaller), air correction 125, power jet 47.5. Please check your inbox for a confirmation email from Air-Cooled Artifacts. Rob responded - Well, yes, that's sort of right. Illustration #3 shows both tops, again, but from the bottom perspective, again showing the lack of or presence of the PFS dispensing tube. VW Carburetor - 30 PICT-1 for Single Port Intake Manifolds. If it is closing too tightly, do the following. 1. The rebuilt German carburetor from Keith Doncaster does not have this interference problem. I have used them for many years with great results. This is the fuel supply line. Area 2 - Carburetor Installation & Adjustment. So it is often used with a non-vacuum distributor like the 009. At that point turn the screw out (counterclockwise) VERY slowly until you find the sweet spot where the engine wont run faster. of hours of experiments by those German engineers. 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. Here's a picture of Dave's worn out bushings -. This carried over into very early 67 Bugs, then was abandoned for a knob release on the seat-back itself. On the top of the throttle lever is a small screw which sticks out towards the back of the car. jay, Hello, i am Mark and i am from Belgium. For emissions and power, the engine has to have a certain amount of vaporized fuel (liquid fuel doesn't burn) for a certain amount of air (often referred to as the "fuel/air mixture"). There is more to the Power Fuel Supply system than just that tube. 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 Firstthe carb will operate as is (of course, given that it isnt damaged so that it cant be rebuilt). Hopefully your engine will be purring by this time. Solex carburetor manual 30 34 pict3 / 31 34 pict 4 german pdf 3.8 mb please right click on the link above and do . Solex 30PICT-2 Carburetor VW Volkswagen Beetle Bug. The timing is set ATDC. Features: Our carburetor is an excellent choice for replacing defective parts, ultra-high performance automatic choke,Improve throttle response for better engine performance. Receive posts from 1967beetle.com in your inbox. There is a wire coming to it from the positive side of the coil. 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. Keep up the good work! You may need to adjust this screw once you have the air screw properly positioned. Throttle Linkage. Part Number: 113129029HJB $109.95. What this means is that you can have correct metering at some engine speeds but not at others. 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. There is only one screw on the drivers side of the carb. However, the purist in me kept my mouth shut. 2. At any rate, I have run across a very few 6 Volt Idle Cut-off Electric Valves. Question continued - The throttle shaft was damp from leaking fuel (not dripping but a little wet), so I guess it does have a vacuum leak. The Spring was secured inside the Tube using a special Split Washer. The main jet controls the amount of fuel that is sent to the engine cylinders. The Factory Air Correction Jet would have been 135z. Accelerator Cable Solex 30 PICT-3, 34 PICT-3 and 34 PICT . 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. I think that most switches dont care whether it is 6 or 12 volts. It is the origional carb. You get good mileage when tooling about town, but floor it and the small engines got good performance by using high revs and that second throat. (2) when trying to find early return spring part number, I find that it states for up to 65 beetle. Engine; if it continues as a single pipe from head to head, There you will find that the fuel supply line attaches to a tube coming out of a round metal device bolted to the engine. . Solex 28 pict 1. rebuild instruction sheet. will need further adjusting. Eric Shoemaker of 1967beetle.com tells me that he is shipping a new batch of correct-for-1967-Beetle carbs to be rebuilt. 640867 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. But. Thank you for taking time to read the Article and to Comment! The Pierburg 34PICT/3 Carburettor, Adjustment of "Single-Screw" Carburettors But it also has to operate at idle and cruising speeds. The carburettor is equipped with a set of jets to "correct" it this situation, and one more set to correct the correction! Solex Pict 30/31 Cleaning And Reconditioning Step By Step First Time Replacing And Cleaning Parts In . jay, For those reading this Threadheres more on the subject which occurred on separate e-messaging: Then a month later it wouldnt start and the fellow I used had left the area, so it has been sitting ever since. The Factory Pilot Jet would have been g60. The 66 was the first year to have the black steering wheel, knobs, etc. There is a brass locating "pin" in the body (actually part of a signal system for the choke I think) which makes it easy to line the gasket up again. Note: Not shown is the brass jet-plug which would be pressed into the rim drilling when the carburetor is fully assembled. 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.) Vapor Lock The 30 PICT-1 carburetor was first introduced with the new, larger displacement 1300 engine on the VW beetle for the 1966 model year. Someone wrote ? I agree. Jay, But, since the Power Fuel Drilling Dispensing Nozzel is fixed into the casting, it would be a problem to change. A warped mounting flange can cause a potential vacuum leak. I continue to learn! Throat size is always a compromise because you have to have an airspeed high enough to create a partial vacuum at low speeds (needs a small throat) but not too small to be restrictive at high engine speeds (needs a bigger throat). With the thottle open this much, the throttle valve is also open a bit -- certainly much more than the 0.004 inch it's supposed to be. Posted: Wed Jul 17, 2013 8:32 PM Post subject: 30 PICT 1 carburetor tuning. Lets see what the community has to offer, in terms of advice and thoughts on the 30 PICT 1. I didnt think there was anything there as the dirt was light and completely smooth. Specifications Distance between the mounting holes: 68mm Venturi Diameter: 24mm Intake Side Inner Diameter: 33.5mm Air Filter Mount Inner Diameter . The choke assembly has been removed and plugged. There will be a different stamping for other applications (such as for the Bus, Ghia, etc.). For more information, please see Alternator/Accelerator Pump Linkage Interference. 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. Dual Carburettors But, you dont want to leave it hanging slack, either. Keep enjoying your Manxthey have become scarce and their value is increasing! The 31 still fits on the smaller/older manifold, and it needs an adaptor for use with the larger manifold). Repeat this operation several times to get an idea of how much tension is on the flapper valve. Your carb was introduced 12/65 and originally would not have had the PFS. The new bushings will be bored to match the steel shaft. Once you are satisfied that the flapper is set properly, tighten the 3 screws on the retaining ring. You, Jay and the other contributors do such amazing work and Im very grateful. 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. 360-894-8787 tim@volkzbitz.com http://www.volkzbitz.com. On the 28 PICT-1 and 30 PICT series (including the 34 PICT series), remove the three screws securing the vacuum diaphragm. TheSamba and to Andy T. who compiled data from several sources. Thanks again for your knowledge. Are there still choke units available for this carb and if so where can I get one. ball will freeze in place. Russ, Hello, RussI have several questions about your car. The idle jet should be a size 55, and power jet size 65. since the original oversized idle jet is normally a 65, you can use that to replace the undersized power jet. Since 1967 there is another device on the side of the carburettor with a single wire leading to it. 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.

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