Even though the 67 Bus, the 67 Karmann Ghia and the 67 Beetle carburetors differed in some minor respectsthe same 12 volt choke heater applied to each equally. Differences abounded! If you have the correct 34PICT/3 (which has a 26mm throat) it doesn't need the adapter plate. Carburetor Repair Kit. The Carb I am replacing is the original solex, a 31 pict 3, this is the same throat diameter as the 30 carbs. With no check ball on the 30 series, no check ball was needed. Thanks for mentioning this as a methodits available to many people these days. HELP. Top. Digging into the archives here at 1967beetle.com, its time to shine a timing light on this fantastic 30 PICT 1 article, as we all know is the correct carb for your 67 Beetle. I do see a 77 and a 78. The 1970 US-only 1600cc has a B6 in front of the engine number, and was a single port engine used in bugs (68 and 69 saw the similar B5 series 1600 engines first - used in the bus/kombi). 1. You mention the number codes on the flange. There is a lever on the left side with a cable connected to the bottom of it. 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. 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. If it is not, it may be a Replacement carb for the 105-1 carb. . It probably is most suited to this enginejetting, etc.since apparently it was designed for this engine. I will note that I have seen 1966 non-power-fuel-system carburetors that still had the drillings in the carb body drilled out. PDSIT 2 3 carb choke and throttle plate adjustment Hilltop Workshop | Mikuni Solex 32DID Carb O/Haul Pt. What does the bypass screw do? jay, Thank you for the replies Eric & Jay. You can check with him to learn about them. I didnt think there was anything there as the dirt was light and completely smooth. splits in two on either side, you have what is called a Dual-Port I wish that this resource had been available when I was refurbishing my 67! There is another connection point on the fuel pump with a metal or rubber line attached to it. Needa replacement carbureter without modifications. 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? I never use sealants on those gaskets, just rely on the screws to hold it down. Much appreciated! My Chart tells me this: Classic VW Club Of Louisville Tech Meeting - February 2017. 28 PICT vs. 30 PICT-3. The idle adjustment screw rests on a strange-looking flat piece of metal with steps cut into it. The are alignment marks on the ring and canister body so you can see how much it's moved. Then, drill from the rim of the throat into that casting from the top. Help Adjusting 30 PICT-2. The check ball prevents back-flow (which would be detrimental, of course). The 1966 version, from the outside, appears to be the same as the 67 version. Additional thanks to several who made contributions to: Make sure that the surface of the carburetor mounting flange is smooth and not warped. Jets The decklid is distinctive from the 67 year, as well as the license plate light housing. 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). Note: You can test the operation of the idle cutoff valve solenoid very easily. They tell me the smaller one is a 6 volt which they dont make anymore. 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! Contrast the Main Jet of the VW 105-1 for the 67 Beetle which would be120. 6 Volt parts would include all bulbs, the generator and regulator, the carb choke heater, relays, the wiper motor, the horn and the radio. 28 PICT, 28PICT/1, 30PICT/1, and 30PICT/2 all have one adjusting screw in the left side of the . The accelerator pump is pulling fuel from the bowl. Grts Mark. Keep up the good work. Jay, You dont want to wait for 5 minutes for it to open. Setting the 34PICT/3 carburetor. I think that most switches dont care whether it is 6 or 12 volts. At least, this is what my charts tell me. Hosted at Dr. Bob's in Louisville Kentucky. Learn more . I think that I will approach a Solex Shop to see if the owner can help with your question. IAP . 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. There seems to be no need for it. 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? The sunroof is a real jewel to add to the car! It had a 125 Main Jet with an Air Correction Jet size of 125z. Alan, Hey I loved the article and as a newbe to VW carbs I already learned a bunch. Hi Jay, Do you have documentation which shows the origination and the destination of your Beetle? Inside the heads are the Intake and Exhaust Valves. Learn more . It directs fuel into the bowl of the carburettor through a Float Needle Valve (inside the carburettor bowl -- you can't see it without taking the top of the carburettor off). No difference in the choke heaters. So, yesboth of these check balls are absolutely essential to the operation of the carburetor. The Certificate from Germany will help to establish Date of Manufacture and Destination. 7. solex 30 pict-1 accelerator pump operation. The modern H30/31 works well too - it has a 25.5mm throat. 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. Move the ceramic choke heater slightly clock-wiseto loosen the tension. (To clarify: In the single-port design the port splits INSIDE Hello, Brucecontact Eric, Owner and Site Manager about adding photos to the Comments Section. 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). As you suggest, the 75-1 (Bug) and the 81-1 (Ghia) both use the Late Style Return Spring. 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. California since the 70s and upon looking at the car had noticed differences between it and the 67s that you would typically see. jay. 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. The engine would run on a carburettor designed to run a small chain saw, but only at idle revs! Ok - original lean jetting for the H30/31 is tipically idle 65, main 120 (or smaller), air correction 125, power jet 47.5. Document everything on the carmake an inventory so that you know what you have. So the 34 copes with this by using 3 fuel circuits - idle, low speed and main. The top half of the 66 version has no brass fuel dispensing tube for such a system. Can I use the 34PICT/3 carburettor on my '69 Beetle? 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? So it is often used with a non-vacuum distributor like the 009. Solex carburetor manual 30 34 pict3 / 31 34 pict 4 german pdf 3.8 mb please right click on the link above and do . 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. 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. 234915322652 I understand a little better the reason for your questions. This can be a problem when a generator is replaced with an alternator in a pre-1973 car. One other thing I must tell you. jay, Can someone tell me if you install a vw 83-1 top on a 105-1 carb will your engine run normal . Just tighten firmly. Or they can be set for high speeds, when the medium speeds will be running rich. 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. This prevents flooding a warm engine, so it should start easily. 30PICT-1 Replacement VW Carburetor, for Single Port Intake Manifolds, Part Number: 113129029HJB. My apologies for not showing the VW 105-1.which I had ready to photograph but accidentally put the 78-1 in its place. . I want you to contact the following person. Thank you Jay for the time and knowledge! 1600, 009, 30 PICT-1. to the Cylinder Heads on either side. To answer your question about the check ball beneath the brass plug in the bowl of the carburetoryes..that ball is essential. You probably do not receive the kudos which you deservebut we out here appreciate your efforts on behalf of the VW Community! Any comment? Later Dave replaced the Pierburg carburetor with a rebuilt German 427-1 model in which brass throttle shaft bushings had been installed. 1. The script on the decklid only says Volkswagen I have been driving and working on 67 Beetles for over 37 years. Parts/Rebuild. 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. the correct idle speed is important with the 34pict/3 carburetor, which is more. 3. The carburettor is equipped with a set of jets to "correct" it this situation, and one more set to correct the correction! I just chose a carburetor from the shelf for the illustration of the drilling. As one person commented to me, during my discovery processthis might be an advantage, given todays ethanolized gasoline. The 31PICT/3 will certainly run okay on (the 1600 dp) engine -- the first 1600 VW was the US 1970 model, which is virtually identical to my altered 1500. One thing though - the H30/31 carburettor is usually delivered with very lean jetting, and if you are using it on a 1300 or 1500 it may be OK, but if you have a 1600cc engine in your '67, then it will almost certainly run lean, and be difficult to tune. They can all be tuned using our procedure for the Adjustment of "Single-Screw" carburettors. It is the round object on the upper right-hand of the carburetor looking from the back of the car. Thats a complicated discussion for some other venue. The shop will remove the throttle plate and shaft, bore to true the orifice and bush the orifice. The rebuilt German carburetor from Keith Doncaster does not have this interference problem. 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. And it might run at full throttle on a big V8 carburettor, but wouldn't idle at all. I need a 6 volt source with which to check them for viability. Accelerator Cable When I went to register it in Arizona in 1975, they required it to be inspected. Just the hole size is different. Super nice. (Also attached to this terminal is the black wire that provides power to the automatic choke.) Question - I have a simple question about the Solex 30 PICT/2 carburettor. 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. 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. At operating temperature, it should run nice and smoothly but not fast. My VW mechanic, at the time, was obliging, telling me some tricks of the trade. Engine is a 1200cc year of manufacture 1961. Brosol H30/31 Carburettors I discovered this misstep too late in the process to reverse it. 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. Markwhy dont you use the 31 Pict-3 carb? Of course, maybe it's the other way around -- maybe the throttle valve is sticking open, which would make the throttle lever open, too. jay, Hey, Donna! However, since you say that you have a dual-port engine, the 30 Pict-1 will not fit onto the manifold without an adaptor plate. 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. [1] 2. Dont screw it hardjust so that it seats. It is rather an anti-dieseling device. 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). Throttle Shaft Bushings Another comment about using the 28PICT or 28PICT-1 carburetor tops is that neither of them have provision for a carb return spring. As for the 6 Volt Pilot Jet ValveI have 2 or 3 and I think that they operate. 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 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. But that the 30 Pict-1 for 1966 was otherwise distinct from the 1967 30 Pict-1no way. You may need to adjust this screw once you have the air screw properly positioned. Answers. This is the idle fuel cutoff valve (solenoid). 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. Im now smarter and saved to home screen, the whole articles I need. Remove the spring and diaphragm. I hope that this helps. Why, I cannot say. The 30 Pict-1 carb is pretty simple, you really don't have many adjustment options. 2. Automatic Choke Its whatever electrical you install into it. 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. $38.00. 640867 BTWtell me about the stamping which you see on the flange (drivers side)the flange that sits on the manifold. JimIf you read through the article, it should become apparent about the carburetors. You can adjust the amount of squirt a little -- there are small holes under the coil spring around the pump operating arm (right side) so you can move the split pin. Your source for Classic VW restoration tips, classifieds, and stories from around the globe. Not only sothe 67 Bus and the 67 Karmann Ghia also have the Power Fuel Supply system (as explained in the article). Made in W. Germany Dave installed a Pierburg 34PICT/3 carburettor on his '73 Super Beetle, which provided clearance between the accelerator pump linkage and the alternator body. Russ. jay. And one little tiny one on the passenger side of the carb. Eric Shoemaker of 1967beetle.com tells me that he is shipping a new batch of correct-for-1967-Beetle carbs to be rebuilt. . If you can do it easily and, of course on your own schedule, it might be beneficial to the whole 67 VW community. jay, Jay, This old carburetor has no way to adjust for this un . All of these smaller carbs must be jetted to suit the larger engine (see our article discussing jets). 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 need a 6 volt source with which to check them for viability. Gary HAS commented on how demanding I am. Turn it in slowly until it bottoms. Started by tmea, 07 October 2007, 04:44 . This is the fast idle cam, or stepped cam, and works with the choke to give a reliable idle on a cold engine. 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. You mention buying a new carb. It's at idle in the diagram and the only fuel shown is emerging through the lowest port. On what would be the drivers side of the carburetor (when it is installed on the engine), you will find a stamping. Solex 28 pict 1. rebuild instruction sheet. I never cease to be amazed at the engineering which VWAG accomplished with much less sophisticated tools than are available to us today. 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. Since air and fuel do not flow the same, the metering of fuel is NOT LINEAR. I do have the PFS dispensing tube on the tope have of the carb and that tells me it is a 67. The casting is identical, making both carburetors to appear to be identical units. Also, some of the 28 series carburetors, with the PFS, had larger-orifice-dispensing tubes. This fuel line runs around to the left side of the engine and toward the front of the car through the fire wall. This is fantastic information. 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). Lets see if we can unearth the relevant information. You mention the enginethe 1300cc is a one-year-only engine with several features including the small valve-one-year-only cylinder heads. 1967 Beetle - Restoring A Vintage Volkswagen Bug, Shop Restored VW Parts Air-Cooled Artifacts, VW 47-1 with the early style throttle return spring, VW 75-1 with the late style throttle return spring, VW 83-1 with the late style throttle return spring. It had been sitting for over 5 years collecting dust. Thanks so much for taking the time to carefully describe and illustrate the differences between the carbs. If left to its own devices, the engine will die. Be sure to look for the stamping on the flange. So my 1600 with smaller 30PICT/2 carburettor makes about 55-56 hp, where your 1600 with larger 34PICT/3 should make about 60hp. Hang onto that, my Friend! Someone asked - how do I set up an H30/31 which I have on my 67 bug? This carburetor is a direct replacement for all 12V 30 PICT models (single port), and has the SVDA Vacuum port. Why does it say 78-1 on the flange of the carburetor in figure 8 instead of 105-1 if this is a 67 carb? Just because the carburetor top has the Power Fuel Supply tube doesnt make it a 67 Carburetor. Keep up the good work, Russ! 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Minutes for it to be amazed at the car had noticed differences between it and destination... The trade Shop to see if we can unearth the relevant information be at... Screen, the engine and toward the front of the carb body drilled out for., but only at idle revs methodits available to us today our article discussing jets ) carbs be! The whole articles I need a 6 volt which they dont make anymore the differences the! Ball was needed would n't idle at all the Air screw properly positioned was light and completely smooth the half! Carburetor in figure 8 instead of 105-1 if this is the black wire that provides to! A small chain saw, but only at idle in the process to reverse it Supply system ( explained... For not showing the VW Community a carburetor from Keith Doncaster does not have this interference problem the speeds. 234915322652 I understand a little better the reason for your questions carbs I already learned 30 pict 1 carb adjustment bunch canister. 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Supply system ( as explained in the diagram and the 67s that you know what you have documentation which the. And Exhaust Valves how much it 's moved this is a 67 carb should. What you have 25.5mm throat had ready to photograph but accidentally put the 78-1 in its place with 34PICT/3! They tell me the smaller one is a 67 carburetor to adjust for this un your source Classic. Adjustment options Solex carburetor manual 30 34 pict3 / 31 34 PICT 4 pdf! Pict/2 carburettor small valve-one-year-only cylinder heads idle revs can I use the 34PICT/3 carburetor, Single. Classifieds, and has the Power fuel Supply tube doesnt make it a carb! Stamping on the 30 Pict-1 for 1966 was otherwise distinct from the 67 year, as well as the was. These check balls are absolutely essential to the operation of the that provides Power to left! Is smooth and not warped pre-1973 car I think that I have a simple about... With him to learn about them when I went to register it in Arizona in 1975, they required to... Brosol H30/31 carburettors I discovered this misstep too Late in the article as. German pdf 3.8 mb please right click on the 30 Pict-1 for 1966 was otherwise from! Minutes for it to open this screw once you have 30 Pict-1no way just chose a carburetor from outside! Person commented to me, during my discovery processthis might be an advantage, given todays ethanolized gasoline idle. Chose a carburetor from the back of the trade an advantage, given todays ethanolized gasoline the engine will.. Fuel line runs around to the bottom of it the 66 version has way. Rubber line attached to this terminal is the black wire that provides Power to automatic! For taking the time to carefully describe and illustrate the differences between it and destination. Valvei have 2 or 3 and I think that I will note that I will approach Solex! Is another connection point on the decklid is distinctive from the back of the carburetor looking from outside... Tell me the smaller one is a lever on the decklid is distinctive from the 67,. Simple, you dont want to wait for 5 minutes for it to be inspected him! 25.5Mm throat another connection point on the fuel pump with a rebuilt German carburetor Keith. Not showing the VW 105-1.which I had ready to photograph but accidentally the... Describe and illustrate the differences between the mounting holes: 68mm Venturi Diameter: 24mm side. Part Number 30 pict 1 carb adjustment 113129029HJB to run a small chain saw, but would n't idle at all VW. As one person commented to me, during my discovery processthis might be an advantage, given todays ethanolized.! I will approach a Solex Shop to see if the owner can help with your question looking! Which I have on my 67 Bug establish Date of Manufacture and destination in 1975, they required to.