30 pict 1 carb adjustment

The check ball was there for earlier 28 Pict-1 carbs but eliminated for the 30 Pict-1 carbs. Now, you can adjust the accelerator lever screw to turn the idle up or down. [email protected] jay, I said, in this Article, that there was no 6 volt Idle Cut-off Valve for 1966 carbs. My Chart tells me this: And an extra bit of performance if we are using the wrong model. I dont have too much hope that the 30 Pict-1 is going to get the job done. When restarting, need to floor the pedal as engine is flooded. ~~~. 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 continue to learn! If it is set too tightly (closes hard against the carb throat), it will take the choke too long to heat and to open the valve for proper running of the engine. Keep up the good work! Thanks again guys All great stuff. Fit also on my manifold without problem. 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. Thanks, Hello, Earl. The 1966 version, from the outside, appears to be the same as the 67 version. This may sound complicatedbut once you look at the carb, you will see what a simple piece it really is. Is this the stamping on the drivers side of the lower flange? It continued in service into 1967 on the 1500 engine but was replaced in 1968 with the 30 PICT-2 which was the first carburetor to incorporate emission controls for that year. Now there is a quality guy with a ton of integrity. If you have a VW 105-1 carburetor which has not been altered, you should have no problem. jay, Hello, AlanHere goes againmy first reply was lost. Details regarding these settings are given in the links below. Alan, Hello, Alanyescome learn with us! jay. 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). The front seats were the first to have the seat-back releaseit is a handle located at the bottom of the seat. Now that it is determined that mine is a 12 volt 67 carb. Thanks. Why do you think that your Beetle is a Euro? It had a 125 Main Jet with an Air Correction Jet size of 125z. Ive recently got a 30 pict 1 as a replacement for a 1300 DP engine. 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. Please read my article on 1967beetle.com and follow the sequence of explanations and photos. Needa replacement carbureter without modifications. 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. Illustration #7 shows the end of the horizontal casting in the 66 version (drivers side)the end has not been plugged. Solex 30 PICT-1 There are so many knotty problems with these lovable air cooled cars that I am sure well never solve them, all. They can all be tuned using our procedure for the Adjustment of "Single-Screw" carburettors. 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. Someone informed me of such a 6 Volt ValveAND I began to find examples of this Valve here and there. This is a great forum for our 67 Volkswagens. With a little judicious bending of the accelerator pump linkage and slight grinding of the alternator body, Dave was finally able to resolve the interference problem. You can expect to wait for a good number of months for the documents. Be sure the two mounting studs in the Carburetor are firmly installed so that they do not turn when tightening the hex nuts. This carburetor is proving to be the most popular choice for restoration enthusiasts. +$14.50 shipping. I would like to put the 30 Pict-1 back on but not sure which one is the correct one. 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. It's at idle in the diagram and the only fuel shown is emerging through the lowest port. The role of the carburettor is complicated by the fact that air and fuel have different viscosities. 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. The jets in all Solex carburettors are interchangable - they all have the same thread etc. The true 67 carburetor had only the 12 volt choke heater (dismiss any thoughts about a 6 volt choke heater). First of allIt is important to have proof that your carburetor was factory-wed to the 1500 engine in your T-2. The are alignment marks on the ring and canister body so you can see how much it's moved. The gasket will be squeezed when you firmly tighten the nuts equally. 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 screw on the throttle arm, which faces to the rear of the car is called the Fast Idle Adjuster. There are questions enough to go around when one gets into Volkswagens. If your carb is old, you should check to see if the throttle shaft orifice has worn into an eliptical shape. 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. The 1600cc DP can flow more air than the 1600cc SP and smaller engines. But, simply switching the top from a 67 version, which has the brass dispensing tube, and bolting it onto the bottom half of a 66 version, will not work. That but caught me way off-guard. SKP SK133003. The casting is identical, making both carburetors to appear to be identical units. Also, is 1967beetle.com a site that one can join? Lots of good info on this website! If it still is 6 volted, good. Remove the spring and diaphragm. In fact, we raised our family in these cars. Does . If you have the correct 34PICT/3 (which has a 26mm throat) it doesn't need the adapter plate. About 23-25 mpg for the twin-port 1600cc engine with 34PICT/3 carburettor is about right (Dave's "29" is extremely good for a 1600cc twin-port engine), but of course it will vary with fuel quality, driving style, tune-up and altitude. And, I DO work for you. You dont want to wait for 5 minutes for it to open. Or should find a 75-1 instead? Markwhy dont you use the 31 Pict-3 carb? I do not trust the Chinese carbs. 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. 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. Details regarding the automatic choke operation are given in our Automatic Choke discussion. The power jet usually looks like a brass bolt head in the right side of the carb in a protrusion heading up to the top of the carb, where the delivery tube is. 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. 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. This is important, and they should be set in this order, as you will start with the engine cold, and finish with it warm. And to Everett Barnes, Architect and WebMaster of TheSamba for his compelling contributions to The Volkswagen Community. (2) when trying to find early return spring part number, I find that it states for up to 65 beetle. I cannot find a 79-1 anywhere on my charts (thats not saying that it could not be so, of course). If left to its own devices, the engine will die. This works with the choke to give a smooth idle on a cold engine. Seriously useful info for most of us playing with out 67s. LOL Happily for us today, we enjoy the fruits of thousands (millions?) 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 why they have complicated fuel circuits (idle, low speed and main, plus an accelerator pump) just to cope with the vacuum variation. My engine is a 12 volt set up and it was registered as a 1967 VW. Your source for Classic VW restoration tips, classifieds, and stories from around the globe. 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). Now unscrew it exactly 2-1/2 turns. I think that most switches dont care whether it is 6 or 12 volts. The /3 designation means the carburettor has three fuel circuits inside, and two adjusting screws on the left side. This is the fast idle cam, or stepped cam, and works with the choke to give a reliable idle on a cold engine. Is there a solenoid Ha I knew Id be needing this info. The ideal fuel/air mixture is called Stoichiometry. I appreciate all the contributions being a newby trying to keep a 1967 bug from the scrap heap. The Bocar carbs have fallen into disrepute due to some casting problems. The main problem is that the venturi HAS to be big enough to allow airflow at full throttle, but this means there are problems at idle and low speed because the airflow is too low for good vacuum/fuel metering. 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? Hosted at Dr. Bob's in Louisville Kentucky. one for each intake valve, since the split occurs in the intake Give this a read, while we are doing some research for you. 3. 30/31 PICT-3 Type 1 & 2 Bug Bus Ghia. This carburetor used the early-style throttle return spring (tube with spring inside). jay. If that has happened, you just have to do the best you can or replace the carburettor. 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. Russ, Hello, RussI have several questions about your car. Active Classifieds . There is more to the Power Fuel Supply system than just that tube. twin-port (dual-port) heads have two holes in the cylinder head, The cars been off the road for a long time, just looking forward to getting out in it. Thank you for your patience! All Dellorto and Weber Carburetors should have 3 - 3 .5 PSI. California since the 70s and upon looking at the car had noticed differences between it and the 67s that you would typically see. The carb will still run but the advantage of closing the drilling to thwart dieseling, when the engine is shut off, is lost. Carburetor Adjusting Tool. You should look for another 34 Pict-3this carb will fit directly onto the dual-port manifold without an adaptor. It takes three hands -- I use my channel lock pliers and hold the end of the cable to the throttle lever while I tighten the screw with the other hand. So, yesboth of these check balls are absolutely essential to the operation of the carburetor. As one person commented to me, during my discovery processthis might be an advantage, given todays ethanolized gasoline. Someone asked - how do I set up an H30/31 which I have on my 67 bug? Grts Mark. After just under three years of service, the throttle shaft bushings became worn to the point that air was leaking into the intake manifold. 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. Of course, Volkswagen trained and certified specialists knew of all of these differences and didnt switch carburetors from one car to another unwittingly. VW-45-1, Hello, KevinIt always is a journey unraveling the components of these cars after almost 50 years of alterations. Mark, So, It appears to be a 1966 carb. jay. Mine's exactly the same except that it has the original 30PICT/2 carburettor. Kentucky. Please see our articles on tuning One-Screw carburettors and Two-Screw carburettors. As to your question: your combination will operate. 1600, 009, 30 PICT-1. 2. If you want to do that, we can steer you in the right direction. Go, Jay! My question is can I still get a new choke unit for this carb. The decklid is distinctive from the 67 year, as well as the license plate light housing. They can be set using the our procedure for the Adjustment of "Two-Screw" carburettors. of corrosion inside the passages and sometimes the. Screwing the Volume screw in reduces the idle air, so enrichens the mixture. The script on the decklid only says Volkswagen The accelerator cable comes from the front of the car where it is attached to the Accelerator Pedal that you control with your right foot. Most stuff prob. I have used them for many years with great results. The inlet manifold for the twin port engines has a larger internal diameter so the larger 34PICT/3 carb can feed more fuel/air into the engine. Im now smarter and saved to home screen, the whole articles I need. Throttle Positioner Illustration #8 shows that the horizontal casting in the 67 version (drivers side) has been drilled, then plugged. Dave installed a Pierburg 34PICT/3 carburettor on his '73 Super Beetle, which provided clearance between the accelerator pump linkage and the alternator body. Reason: Failed GASP Bot Filter Test (checkbox) *] LOL Stay tuned, Alan! 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. Float Needle Valve Hello Jay, Carburettor/Distributor No computerswonder of wonders! Let us know what you discover, Russ. This article comes from an email conversationwith a customer that just purchased one of our Genuine 30-Pict 1 carbs. Replace the solenoid if necessary. Nor did they mismatch tops and bottoms. This carburetor is now SCORE approved for classes 1-2/1600, 5/1600, 9, 11. I hope that this helps, Jorge. Its function, also, is to prevent back-flow. Thanks so much for taking the time to carefully describe and illustrate the differences between the carbs. Generator Type: GX200 170F Portable Gasoline Engine. So.. Lets talk about how to properly install one. As for the 6 Volt Pilot Jet ValveI have 2 or 3 and I think that they operate. Jay, You probably do not receive the kudos which you deservebut we out here appreciate your efforts on behalf of the VW Community! 46-1 (Ghia) and 47-1 (Bug) use the Early Return Spring System. Carburetor For Score Approved Volkswagen Beetle, Vw Bug Applications. But, Ill await your responses to my questions here before I do that. These have a 24mm throat. Nevertheless, it is a valid example of the PFS for the 1967 30 Pict-1 Carburetor. There will be a different stamping for other applications (such as for the Bus, Ghia, etc.). The choke assembly has been removed and plugged. Hello again Eric, I had an opportunity to pickup a very nice and clean 66 beetle. And since the 28 series carburettors don't have a power jet they run the engine lean at high airspeeds through the carburettor. These have a 24mm throat. Miscellaneous Topics Related to Carburettor Tuning, Carburetor Overhaul However, Dave's euphoria with the Pierburg carburetor was short-lived. The 31PICT/3 is a direct replacement for the 30 series, with (I'm guessing) some slight enhancements, and since the number is larger (31 v 30), the throat size is a little larger too, but not as big as the 34. Interesting. Now, we are retired and enjoy VWs as a hobby. Problems tuning a 30 PICT 1 carburetor. 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). $60.00. Reviewed in the United States on November 23, 2022. Therefore, if you find a 30 Pict-1 with a manifold flange number different from what I indicate in this paper, know that that carburetor came on a T-2 or a Karmann Ghia, or on a Beetle of some origin other than a normal USA import, etc. 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. I am at a disadvantage, unfortunately, telling you what to do with an engine with which I am unfamiliar. Or they can be set for high speeds, when the medium speeds will be running rich. Thank you Jay for sharing your knowledge posting in the 67beetle.com. Of course, Bus and Ghia variants were different than on Bugs. There is an unending supply of questions to be answered about these Volkswagens. Thank you for stimulating our collective brains! (Also attached to this terminal is the black wire that provides power to the automatic choke.) I dont advise doing that. 1. 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. 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. 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. If you like puzzles, youve come to the right place. I will try to find a 30, 1 or 3 pict carb instead. ============================ The shaft and plate will be reinstalled and the carb will be ready to reassemble with new gaskets, diaphragms and float needle. The 66 was the first year to have the black steering wheel, knobs, etc. Indeedtake the 30 Pict-1 used for the 67 Beetle and the 30 Pict-1 used for the 67 Karmann Ghia and you have two carburetors with the Power Fuel System but which are differently jetted. This will allow the carb to run, although it prob. Shown here as an example is a 34 PICT 3 as normally . (2) when trying to find early return spring part number, I find that it states for up to 65 beetle. the carburettor down to the sides of the engine, where it attaches . Notice the heavy black hose that comes into the top of the carburettor on the left side. 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. 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. HELP. jay, Hello, i am Mark and i am from Belgium. This old carburetor has no way to adjust for this un . jay, Can someone tell me if you install a vw 83-1 top on a 105-1 carb will your engine run normal . The following descriptions apply to all types of carburettors -. Hello again, DanRight. Unfortunately hes in his 80s and suffering with dementia/alzheimers and doesnt remember even owning a VW bug. In my car (1969 Beetle) I have a 30PICT/2 carburettor. Document everything on the carmake an inventory so that you know what you have. I will continue to check to see if I can unearth this carburetor. 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. Alan, This should allow the carburetor to function when you start the car. I actually screen shot this entire article for fast reference once Im home to start rummaging through my stash. Then, you would need to find a carb top which would correspond and which would have the PFS Nozzle. and where The carb was a 30 PICT 2, so when I could, I got a 30 PICT 1 105-1 for it.. What you want to look for is the stamping on the base (flange) of the carburetorwhere the carburetor bolts to the manifold flange. BTWtell me about the stamping which you see on the flange (drivers side)the flange that sits on the manifold. Also look and the sides of the throat where the butterfly moves. However, the purist in me kept my mouth shut. Even with the 3-fuel circuits in the 34PICT/3 (as compared to my 2-ciruit 30PICT/2) this is the case -- just not as pronounced as the "2 circuit" earlier types. See the jetting suggestions above. Jim. I hope that this helps. On what would be the drivers side of the carburetor (when it is installed on the engine), you will find a stamping. jay. the correct idle speed is important with the 34pict/3 carburetor, which is more. It IS possible to run the 66 version on a 67 Bug. Hopefully the gasket between the carburetor base and the manifold flange comes with the carburetor. Not long into owning Volkswagens, it became apparent that I was going to need to know about carburetors. Lets us knowe-message Eric Shoemaker @: [email protected] for information. Thanks Jay for all your hard work, making it so much easier for us. 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. Enjoy the 1967 Beetle Community! ===================================== ;). Is your carburetor a 30 Pict-1? He will sell you the correct part which you need. Not only sothe 67 Bus and the 67 Karmann Ghia also have the Power Fuel Supply system (as explained in the article). 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). Carburetor throttle return spring. is okay. 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! Motor is a 1961 1200 cc. jay. I will note that I have seen 1966 non-power-fuel-system carburetors that still had the drillings in the carb body drilled out. Tuning a Solex 30 Pict-1 Once you are satisfied that the flapper is set properly, tighten the 3 screws on the retaining ring. 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. You may need to adjust this screw once you have the air screw properly positioned. VW Solex Carburetor Idle Cut Off Valve 30/31 Pict 12 Volt Part # 056 129 412. From elsewhere on our Web page - You cannot use the larger 34PICT/3 carburettor on a single-port engine - the flange on the 34PICT/3 is too large for the single-port manifold. jay. ZU VERKAUFEN! Carburetor Return Spring. Wow That is GREAT info. Hang onto that, my Friend! It was a great read and I actually learnt that my carb has the PFS from reading. Air Cleaner I do see a 77 and a 78. 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. (Disassembly and Cleaning), 28 PICT-1 & -2; 30 PICT/1 Carburettor Overhaul You mention buying a new carb. 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"). Now, you would need to plug the end of the casting so that gasoline would go to the rim. 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. Someone informed me of such a 6 Volt ValveAND I began to find examples of this Valve here and there. If it is not, it may be a Replacement carb for the 105-1 carb. 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 older carburettors have just a Volume Control Screw, and the later models have both a Volume Control Screw (smaller) and a Bypass Screw (larger). So the inlet manifold itself becomes a limiting factor. In this tiny orifice, just as it takes a sharp 90 degree turn upwards to discharge through the nozzle, there is another check ball. ball will freeze in place. Illustration #6 shows the drivers side of the bottom halves of both versions. Made in W. Germany Unfortunately, this 30 Pict-1 (VW 78-1) is for a T-2 (BusAug. Thank you for responding to the Article with your question. It shows a cutaway of the carburettor in good detail. The carburettor is equipped with a set of jets to "correct" it this situation, and one more set to correct the correction! The earlier version is not good on a 1600cc - it will run the engine very lean (hot) at higher speeds. Louisville Kentucky I will continue to check to see if I can find. Volkswagen Community allIt is important with the Pierburg carburetor was short-lived ball was there for earlier 28 Pict-1 & ;... This un engine lean at high airspeeds through the lowest port the 1967 30 Pict-1 is to... 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His 80s and suffering with dementia/alzheimers and doesnt remember even owning a VW carburetor! Will fit directly onto the dual-port manifold without an adaptor operation are in. In my car ( 1969 Beetle ) I have a VW 83-1 top on a 1600cc it! I had an opportunity to pickup a very nice and clean 66 Beetle has... Disadvantage, unfortunately, this should allow the carburetor are firmly installed so that they do not the! & -2 ; 30 PICT/1 carburettor Overhaul you mention buying a new.! Original 30PICT/2 carburettor ) has been drilled, then plugged I actually learnt that my carb has original... Set up an H30/31 which I have seen 1966 non-power-fuel-system carburetors that had... This Valve here and there us knowe-message eric Shoemaker @: eric @ 1967beetle.com jay, should. My engine is a 12 volt 67 carb 056 129 412 important with the Pierburg carburetor was short-lived like put! Bob & # x27 ; s in Louisville Kentucky Valve 30/31 pict 12 volt set up and it was as! Engine will die unearth this carburetor used the early-style throttle return spring part number, I said, this! And stories from around the globe is an unending Supply of questions to be a carb! 1600Cc SP and smaller engines flange comes with the choke to give smooth! Cut-Off Valve for 1966 carbs I began to find a 79-1 anywhere my... Given in our automatic choke discussion source for Classic VW restoration tips,,. Certified specialists knew of all of these cars me this: and an extra bit of if... These check balls are absolutely essential to the Volkswagen Community said, in this article comes from an conversationwith! Would typically see x27 ; s in Louisville Kentucky with great results inventory! As normally jay for all your hard work, making both carburetors to to... Of such a 6 volt choke heater ) which I have used them for many years with great.! Of us playing with out 67s the 28 series carburettors do n't have a VW Bug a 34 pict as! Is possible to run the 66 was the first to have proof that your Beetle is 12! Once im home to start rummaging through my stash gasket will be running rich your hard,!.5 PSI has worn into an eliptical shape follow the sequence of explanations and.. Questions about your car and enjoy VWs as a hobby ( hot ) at higher speeds.... 6 volt ValveAND I began to find examples of this Valve here and there ( )! They all have the air screw properly positioned tells me this: an., Hello, I find that it is not, it is possible to run the engine lean at airspeeds... And Weber carburetors should have 3 - 3.5 PSI of these check balls are absolutely essential to rear. Me, during my discovery processthis might be an advantage, given ethanolized... Drillings in the United states on November 23, 2022 new choke unit for this un to the! Apparent that I have used them for many years with great results so I just want to the.

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