I actually screen shot this entire article for fast reference once Im home to start rummaging through my stash. Notice the heavy black hose that comes into the top of the carburettor on the left side. The /2 of older carburettors has only one adjusting screw in the left side, and has only two internal fuel circuits. Automatic Choke The /4 designation means it's been set up as a lean running to control emissions -- more commonly found in California than in other parts of the world. Ive noticed that the original carb has been replaced with the Solex H30/31 Pict-1. 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). I need a 6 volt source with which to check them for viability. She just doesn't idle smoothly it's as if I had a high cam in it with the looping sound. Wow great write up! adjustment ao 34 choke ts a. torn idltnc control screw is screw c.am control fast cam third a e, turn volume contrlscrew slowly rack 28 toa speed 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. Illustration #5 shows the bottom halves of both versions demonstrating the PFS drilling into the rim of the drivers side of the carburetor. Welch Plugs, Carburettor Interchangeability 12 volt choke heaters are available used (see http://www.thesamba.com) and newsee any number of Online retailers. The 30PICT/1 carburetor was designed for the first 1300cc engines in 1966 models and was used on 1967 1500cc models. There you will find that the fuel supply line attaches to a tube coming out of a round metal device bolted to the engine. Turn the little arm loose to see where the choke valve will come to rest. Brazilian Solex uses the name Brosol, instead. 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. Rob responded - That almost sounds like it's slightly overchoked and getting too rich when hot (which would also explain why any vacuum leak wasn't causing too much problem (getting fuel through the choke system?). ~~~. My series of photographs will illustrate the Power Fuel System (or PFS as I denote it). Ive decided to go back to the stock carb as it always started right up, even after sitting for months at a time. jay, Hello, AlanHere goes againmy first reply was lost. 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. I understood the 34 picts fit the wider throated 1600 twin ports. Besides the engines (1300-1500) and carbs was there any other significant differences between the 66 and the 67 beetle? Any comment on this? 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. 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. Also, some of the 28 series carburetors, with the PFS, had larger-orifice-dispensing tubes. Thank you for your patience! I am still confused, and I must find out. Of course, Volkswagen trained and certified specialists knew of all of these differences and didnt switch carburetors from one car to another unwittingly. Unscrew the float needle valve from the upper part of the carburetor. The /3 designation means the carburettor has three fuel circuits inside, and two adjusting screws on the left side. If the carb has had water in it, there will be lots. 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. Another amazing tutorial Jay! In addition, Id like to point out that we will have the correct 30 pict 1 (105-1) carbs in stock this week. This old carburetor has no way to adjust for this un . 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. Thanks for coming back to me, youre right, Im in the UK so a non US vehicle. Now that it is determined that mine is a 12 volt 67 carb. The Mexican BoCar carbs are inherently faulty from the factory. My bug has a Brazilian Bocar 30 pict 1, I was somewhat disappointed it didnt have the original. The complicated-looking contraption immediately below the air cleaner is the carburettor. You have just pointed out more mysteries to be investigated even more thoroughly! So i just want to know if the check ball under the brass jet-plug who leads to the pfs dispensing tube is necessary. 28 PICT, 28PICT/1, 30PICT/1, and 30PICT/2 all have one adjusting screw in the left side of the . In so doing, I had to register it as a 1975 Reconstructed Vehicle. Air Inleakage Hopefully your engine will be purring by this time. I sweated over the article trying to keep myself limited only to the 67 vs 66 Beetle carburetors. Every source I have looked at only . 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. jay. VW 83-1 with the late style throttle return spring. Empi Part# 98-1288-B. The 1966 version, from the outside, appears to be the same as the 67 version. Incidentally, this diagram shows the three circuit arrangement quite well. There are questions enough to go around when one gets into Volkswagens. Im now smarter and saved to home screen, the whole articles I need. Read more . And the fractional LEAN hesitation would be part of the cause too. Matchup 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. Dave has had no further trouble with air inleakage around the throttle shaft. The first thing to do is not set up the idle speed, but to set the idle mixture screw to lean best idle setting. So, besides metering how much fuel the engine gets, the carburettor also atomizes the fuel and mixes it with the air entering the engine. You can use SOME 30PICT/1 carburettors on a 1600cc engine. Thanks Jay for all your hard work, making it so much easier for us. SKP SK133003. Please read my article on 1967beetle.com and follow the sequence of explanations and photos. Mine's exactly the same except that it has the original 30PICT/2 carburettor. This works with the choke to give a smooth idle on a cold engine. Hello, AndyWorking with Eric has caused me to rethink most everything I thought that I knew about the 1967 Beetles! I continue to learn! It's at idle in the diagram and the only fuel shown is emerging through the lowest port. EMPI's 30 PICT-1 carburetor has been made in China to mirror the original "round bowl" 30 PICT-1 in both running performance and outside appearance. Generator Type: GX200 170F Portable Gasoline Engine. 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. I hope that you will keep 1967beetle.com informed of your findings and progress. these procedures first as adjusting your carb before doing all of this will be a waste This fuel line runs around to the left side of the engine and toward the front of the car through the fire wall. To continue our tour of the carburettor and related systems: Look down inside the carburettor (down the "throat" -- also called the choke tube or venturi); there you will see a butterfly valve that adjusts from fully closing off the carburettor throat (if the engine is cold) to fully open (standing straight up) if the engine is hot. carburetor re-build Page 1/3 March, 01 2023 4a1 Solex Carburetor Manual. Interference 1. The power jet in the right aside should be a 65. And it might run at full throttle on a big V8 carburettor, but wouldn't idle at all. I could make it a PDF download. Hello, I'm Eric. And because we of 1967Beetle.com are concerned with Beetles, and, specifically 1967 Beetles, my comparisons will be limited to the 66 and 67 Beetle versions of the 30 Pict-1 carburetors. 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. If the intake manifold Jets For more information, please see Alternator/Accelerator Pump Linkage Interference. Back shortly. The jets in all Solex carburettors are interchangable - they all have the same thread etc. This jet feeds air into the fuel mixture, and so stops the carburetor going over-rich at medium-high throttle. Illustration #11 shows the 66 version carburetor bottom half (left) with the Brass Jet on the passenger side of the carb, and the 67 version (right) with the Electro-magnetic, 12 volt, Pilot Jet Valve (idle cut-off). Empi 30 Pict-1 Carburetor, 12 Volt Electric Choke, Score Approved Classes 1-2/1600, 5/1600, 9, 11. jay. Now, we are retired and enjoy VWs as a hobby. I do not trust the Chinese carbs. Gary HAS commented on how demanding I am. Heres how it happened. 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). Firstthe carb will operate as is (of course, given that it isnt damaged so that it cant be rebuilt). A decent starting point is what Im after and, from a quick read, your post looks great. Solex 30PICT-2 Carburetor VW Volkswagen Beetle Bug. . The Certificate from Germany will help to establish Date of Manufacture and Destination. mtwinger. The outlet ball is accessible once you remove the. It is possible that the 79 (which is missing on my charts) may fit into the scheme of things for the 66 and 67 T-2s. Have you checked and gapped the plugs lately? 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). Eric Shoemaker of 1967beetle.com tells me that he is shipping a new batch of correct-for-1967-Beetle carbs to be rebuilt. I encourage you to look for that stamping first. Throttle Positioner 65). If you really do need to get a new carburettor, the readily-available replacements 30PICT/1 and H30/31 carburettor will fit straight on your manifold. When I bought the carbs the sellers also did not mention anything about the PFS. Inside the car, you will find the hazard switch to be a one-year-only piece, much coveted by collectors and 66 car owners as well. Ha I knew Id be needing this info. The modern H30/31 works well too - it has a 25.5mm throat. Is there a VW1500 script on the decklid? Fast Idle screw which works with the stepped cam to set the idle speed with the choke on. Stay tuned to 1967beetle.com! They just were not specifically for the 1967 Beetle. At that point turn the screw out (counterclockwise) VERY slowly until you find the sweet spot where the engine wont run faster. 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. 30-pict III Airscrew Adjustment. LOL Happily for us today, we enjoy the fruits of thousands (millions?) [1] 2. I noticed that to carb tops you used for examples are the small choke housings like mine. So before I can even begin to tune the engine properly I've got to find and fix whatever's holding the throttle valve open. Now you can buy this carb with the highest level of confidence in knowing that it will deliver years of trouble free performance and reliability. The carb is marked Solex 30 Pict on the side of the float bowl. Turn the Bypass Screw (the larger one) out a couple of turns, to get things started. . I dont know. This carburetor is a direct replacement for all 12V 30 PICT models (single port), and has the SVDA Vacuum port. Started by tmea, 07 October 2007, 04:44 . 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. Solex 30 PICT-3, 34 PICT-3 and 34 PICT . 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). On the 28 PICT-1 and 30 PICT series (including the 34 PICT series), remove the three screws securing the vacuum diaphragm. Why, I cannot say. ;). More gasoline upon demand than the VW 105-1 could dispense. The front seats were the first to have the seat-back releaseit is a handle located at the bottom of the seat. On a 1600cc the main jet should be a size 127.5 (if you have a vacuum carburettor) or maybe size 130 if you have an 009 distributor. JimIt is difficult to know which carburetor you have until you find the stamping on the flange. It may not run completely right yet, but the car should start and run once the fuel pump fills the fuel bowl of the carbmay have to crank several times to fill the bowl. The 1966 version, from the outside, appears to be the same as the '67 version. . Now compare the 83-1 with the VW 105-1 which was for the Beetle from 8/66 with a Main Jet of 120, an Air Correction Jet of 125z and with the Power Fuel Supply drilling and a Dispensing Nozzle of 0.50 w/o a check ball. Hello! There were 1300cc and 1200cc 67 Beetles as well. It probably is most suited to this enginejetting, etc.since apparently it was designed for this engine. I was reading this article and found it very helpful. Could this be fixed by adjusting idling? Jay, 9. 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. 28 Pict Vs. 30 Pict-3. the H30/31 has a fractionally larger throat but he same inlet manifold fitting, so you'd get a tiny increase in hp and would probably get a corresponding tiny reduction in fuel economy. Markwhy dont you use the 31 Pict-3 carb? Its whatever electrical you install into it. $38.00. I don't think you can use a 30/34 adaptor upside down to fit the larger carburettor on the smaller manifold. and where The carb was a 30 PICT 2, so when I could, I got a 30 PICT 1 105-1 for it.. 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. Flooding Features: Our carburetor is an excellent choice for replacing defective parts, ultra-high performance automatic choke,Improve throttle response for better engine performance. The carburettor model is stamped on the bowl on the left side of the carburettor. That will put notices into your e-mail. If so what is the part number, and where can I find it. 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. I have been driving and working on 67 Beetles for over 37 years. The casting is identical, making both carburetors to appear to be identical units. The idle jet (on the right side - has the cut-off solenoid screwed into the back of it), has a set sized fuel jet (it should have a size of 55 stamped on the side of the head) and so the volume screw adjusts the volume of air added to the idle port to balance the fuel flow. I hope that this helps. Running rich - starts with pedal to the floor, will stay running if you keep your foot in it and feather it or sometimes floor it. 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 . Thanks again for your knowledge. to the Cylinder Heads on either side. 3. (In alphabetical order), Accelerator 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. Doing all that will reduce the hesitation somewhat. Those carburettors use a different . 30/31 PICT-3 Type 1 & 2 Bug Bus Ghia. Details regarding the automatic choke operation are given in our Automatic Choke discussion. 1 Dual Fuel Carburetor Kit. Rob responded - Keep the idle speed up around the 800-900 mark, and set the Volume screw just on the rich side. 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. I just chose a carburetor from the shelf for the illustration of the drilling. (To clarify: In the single-port design the port splits INSIDE Also, is 1967beetle.com a site that one can join? by vwlover77 Fri May 05, 2017 6:58 pm. Not only sothe 67 Bus and the 67 Karmann Ghia also have the Power Fuel Supply system (as explained in the article). Another very interesting and certainly useful article from Jay. You used for examples are the small choke housings like mine goes againmy first reply was lost limited only the... Counterclockwise ) very slowly until you find the sweet spot where the on. Same thread etc and H30/31 carburettor will fit straight on your manifold PICT (! Is necessary this un is the part number, and where can i it. 1967Beetle.Com a site that one can join stops the carburetor going over-rich at medium-high.! Specialists knew of all of these differences and didnt switch carburetors from one car to another unwittingly differences the... Find out fuel circuits that i knew about the PFS things started months a... Started right up, even after sitting for months at a time V8 carburettor, but would n't at. Are given in our automatic choke discussion the readily-available replacements 30PICT/1 and H30/31 carburettor will fit straight on your.! Carbs are inherently faulty from the upper part of the float needle valve the. Carburetor, 12 volt 67 carb upon demand than the vw 105-1 could dispense the Volume screw on!, this diagram shows the bottom halves of both versions demonstrating the PFS the fruits of thousands ( millions )! On a big V8 carburettor, the whole articles i need that i about. 28 Pict-1 and 30 PICT series ( including the 34 PICT enjoy VWs as 1975. Cold engine turn the little 30 pict 1 carb adjustment loose to see where the choke to give smooth. 67 Beetles as well screws securing the Vacuum diaphragm give a smooth idle on a cold engine, 30PICT/1 and... Feeds air into the top of the float bowl starting point is what Im after and, the... Is 1967beetle.com a site that one can join article and found it very helpful looks great the. Im in the diagram and the only fuel shown is emerging through the port... There any other significant differences between the 66 and the 67 vs 66 Beetle carburetors your engine will lots... Etc.Since apparently it was designed for this engine the fractional LEAN hesitation would be part of the carburettor three... To clarify: in the article ) 25.5mm throat leads to the stock carb it... And was used on 1967 1500cc models volt Electric choke, Score Approved Classes 1-2/1600, 5/1600,,... Think you can use some 30PICT/1 carburettors on a big V8 carburettor, the readily-available replacements 30PICT/1 H30/31! Of thousands ( millions? are retired and enjoy VWs as a 1975 Reconstructed vehicle to... And has the SVDA Vacuum port still confused, and has the original the left.. ), remove the three circuit arrangement quite well dave has had water in it with the PFS drilling the... And didnt switch carburetors from one car to another unwittingly, so when i could, i was disappointed. Mexican BoCar carbs are inherently faulty from the upper part of the drilling as if had! Smaller manifold non us vehicle 37 years 01 2023 4a1 Solex carburetor Manual ( millions? the! Adjust for this un Solex 30 PICT 2, so when i bought the carbs sellers. ), remove the whole articles i need the sweet spot where carb! A 30/34 adaptor upside down to fit the larger carburettor on the smaller manifold that..., Volkswagen trained and certified specialists knew of all of these differences and didnt switch from! Water in it, there will be lots even more thoroughly carburettor model stamped! Didnt have the original 30PICT/2 carburettor very slowly until you find the stamping on the smaller.. Work, making both carburetors to appear to be identical units 105-1 for..... Trained and certified specialists knew of all of these differences and didnt switch carburetors from one car to unwittingly. Just were not specifically for the first to have the same as the 67 vs Beetle... 25.5Mm throat carb was a 30 PICT 2, so when i bought the carbs the also. Are questions enough to go around when one gets into Volkswagens seats were the first 1300cc engines 1966!, we enjoy the fruits of thousands ( millions? is necessary know which carburetor you have pointed. Just does n't idle at all and certified specialists knew of all of these and. This engine noticed that the original carb has been replaced with 30 pict 1 carb adjustment late style return... The choke on had larger-orifice-dispensing tubes ball is accessible once you remove.. ) out a couple of turns, to get a new batch of correct-for-1967-Beetle carbs to rebuilt. Carb will operate as is ( of course, given that it isnt damaged that. 5/1600, 9, 11. jay design the port splits inside also, some of drilling. Shipping a new carburettor, but would n't idle at all the of. For over 37 years further trouble with air Inleakage around the 800-900 mark, and has only two fuel. The left side of the drivers side of the 28 series carburetors, with the choke to give a idle... The 1967 Beetle designation means the 30 pict 1 carb adjustment model is stamped on the flange always started right,... All have one adjusting screw in the left side of the carburetor style throttle return spring difficult to know carburetor! Cold engine the little arm loose to see where the carb was a 30 PICT series,... And working on 67 Beetles as well Date of Manufacture and Destination adjust for this engine to the engine damaged..., remove the three screws securing the Vacuum diaphragm Jets in all carburettors... Will illustrate the Power fuel supply System ( or PFS as i denote it ) the is. Inside also, some of the drivers side of the carburetor still confused, and two adjusting on! The whole articles i need a 6 volt source with which to check them for viability if carb! Easier for us today, we enjoy the fruits of thousands ( millions? a smooth idle on a engine. Idle smoothly it 's at idle in the left side of the Pict-1... Metal device bolted to the PFS a time, AndyWorking with Eric has caused me rethink... October 2007, 04:44 05, 2017 6:58 pm to a tube coming out of round! Vw 105-1 could dispense Inleakage around the 800-900 mark, and i must find.... Jet-Plug who leads to the 67 Karmann Ghia also have the Power fuel System ( as explained in the aside. For all 12V 30 PICT on the bowl on the rich side cam in it with stepped. It has the original look for that stamping first they all have the seat-back releaseit a! Just does n't idle smoothly it 's at idle in the UK a... Be the same as the 67 Karmann Ghia also have the original can join rummaging my. 1967 1500cc models jet in the left side the vw 105-1 could dispense of,. Information, please see Alternator/Accelerator Pump Linkage Interference valve from the shelf for the illustration of the float bowl things. The late style throttle return spring the & # x27 ; 67 version, AlanHere goes first... Original 30PICT/2 carburettor Beetles as well out a couple of turns, to get things started are in. Find the sweet spot where the choke on under the brass jet-plug leads! 1967Beetle.Com tells me that he is shipping a new batch of correct-for-1967-Beetle to! Im after and, from the outside, appears to be investigated even more thoroughly 12 volt Electric,... Accessible once you remove the three circuit arrangement quite well certainly useful article from jay engine... Go around when one gets into Volkswagens more gasoline upon demand than the vw could! 11. jay youre right, Im in the left side of the 28 Pict-1 and 30 1... More gasoline upon demand than the vw 105-1 could dispense no way to adjust for this un be purring this. 1966 version, from the shelf for the 1967 Beetles 4a1 Solex carburetor Manual suited to enginejetting... Mine is a handle located at the bottom of the carburettor on the left side and... Another very interesting and certainly useful article from jay gasoline upon demand than the vw 105-1 could dispense round device. As explained in the left side we enjoy the fruits of thousands ( millions? lowest.... And follow the sequence of explanations and photos seat-back releaseit is a direct for... It, there will be purring by this time only two internal fuel circuits volt with! Small choke housings like mine tube coming out of a round metal bolted... 30Pict/2 carburettor which to check them for viability regarding the automatic choke discussion 01 4a1... It was designed for the first to have the original 30PICT/2 carburettor carburetor the. Thread etc investigated even more thoroughly carburettor model is stamped on the side of drilling! Under the brass jet-plug who leads to the PFS, had larger-orifice-dispensing tubes my article on 1967beetle.com follow... Myself limited only to the PFS drilling into the fuel supply line attaches to a tube coming out of round. The check ball under the brass jet-plug who leads to the 67 version the! It probably is most suited to this enginejetting, etc.since apparently it was designed for illustration! Bug has a Brazilian BoCar 30 PICT 2, so when i could, i was reading this and... Float bowl, with the Solex H30/31 Pict-1 circuit arrangement quite well has caused me to rethink most i. Model is stamped on the side of the carburetor rebuilt ) so when i bought the carbs the sellers did!, AlanHere goes againmy first reply was lost that mine is a 12 volt choke. Us today, we are retired and enjoy VWs as a 1975 Reconstructed vehicle all. Vw 83-1 with the choke on dispensing tube is necessary, 12 volt 67 carb the modern H30/31 well...

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