As one person commented to me, during my discovery processthis might be an advantage, given todays ethanolized gasoline. One possible thing to try, is to loosen then retighten the throttle butterfly to the shaft. jay. It has some marking on it. The 66 carb isnt a 6 volt carburetor per se. Engines and engine parts, such as carburetors, get passed around until its almost impossible to track them. But that the 30 Pict-1 for 1966 was otherwise distinct from the 1967 30 Pict-1no way. Answers. splits in two on either side, you have what is called a Dual-Port Illustration #7 shows the end of the horizontal casting in the 66 version (drivers side)the end has not been plugged. Some of the 30PICT carburettors (especially the 1970 30PICT/3 and the modern H30/31) were/are jetted super-lean for emissions reasons (I've seen the main jet as small as 112.5). Also, some of the 28 series carburetors, with the PFS, had larger-orifice-dispensing tubes. Mark, you surely are welcome! Hang onto that, my Friend! But it also has to operate at idle and cruising speeds. My series of photographs will illustrate the Power Fuel System (or PFS as I denote it). 34 PICT/3 Carburettor Overhaul, Related Topics I dont advise doing that. Just because the carburetor top has the Power Fuel Supply tube doesnt make it a 67 Carburetor. Solex 30 PICT-3, 34 PICT-3 and 34 PICT . VW Solex Carburetor Idle Cut Off Valve 30/31 Pict 12 Volt Part # 056 129 412. Good info, Andy! Reason: Failed GASP Bot Filter Test (checkbox) *] Whoa.more information than I can handle. 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. They can be set using the our procedure for the Adjustment of "Two-Screw" carburettors. But this smaller throat runs out of puff at higher speeds, the cylinders don't get time to fill completely before the inlet valve closes, as the air/fuel mix cannot get through the restricted throat fast enough. Carburetor Fuel Inlet Fitting. Since they both told me the same thing Im trusting that they are being truthful with me. At operating temperature, it should run nice and smoothly but not fast. by vwlover77 Fri May 05, 2017 6:58 pm. The VW Beetle engine originally used three different-sized Solex carburettors to suit different engine sizes, and each size has several variations, so let's look at them. Rob responded - Keep the idle speed up around the 800-900 mark, and set the Volume screw just on the rich side. Give this a read, while we are doing some research for you. Air Cleaner ZU VERKAUFEN! They can all be tuned using our procedure for the Adjustment of "Single-Screw" carburettors. The Pierburg 34PICT/3 Carburettor, Adjustment of "Single-Screw" Carburettors Mostly they came with returning Military personnel or tourists, business people, etc. I will continue to check to see if I can unearth this carburetor. 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. So, yesboth of these check balls are absolutely essential to the operation of the carburetor. Take care and thanks for stimulating our collective brains! 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. 7. solex 30 pict-1 accelerator pump operation. Rob responded - The carburettor metal is fairly soft and it wouldn't take much pressure on the screw to force the bottom of the hole larger, but you couldn?t see it with a flashlight down that tiny hole anyway. Question - I replaced the volume screw when I rebuilt the carburettor a few weeks ago? Be sure the two mounting studs in the Carburetor are firmly installed so that they do not turn when tightening the hex nuts. The top half of the 66 version has no brass fuel dispensing tube for such a system. Hello, I'm Eric. It could also be one misfiring a few times before the rpm increase (poor mixture etc.). The volume control screw is used to help set the idle mixture, and the bypass screw, where fitted, is used to control the idle speed of the engine. mtwinger. Carburetors are designed to operate within a certain fuel pressure range, and if this range is not adhered to, the carbs will not operate properly. The breastplate is a one-year-only tin as is the air breather. The rest of the carburettor components are different, except for the floats, which are interchangable between the 30, H30/31 and the 34 series carburettors. A few years back I had a fellow put on two one barrel Dellortos, and it ran fine to get it home. I went through my charts and could not find a reference to your R 6 157 Carburetor. Hello again, DanRight. As to your question: your combination will 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. Once you are satisfied that the flapper is set properly, tighten the 3 screws on the retaining ring. Fast Idle screw which works with the stepped cam to set the idle speed with the choke on. No computerswonder of wonders! Now there is a quality guy with a ton of integrity. Question - I have a simple question about the Solex 30 PICT/2 carburettor. As a result, they are no longer have any sort of manufacturer or retail warranty. 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. From Jorge Ortizwe received this Set of questions: Hi Jay. Thanks for commenting. I do see a 77 and a 78. If you can do it easily and, of course on your own schedule, it might be beneficial to the whole 67 VW community. This is Andy T. glutamodo who apparently started this whole ball of wax rolling with my posts on theSamba and the charts Ive compiled over the years. Classic VW Club Of Louisville Tech Meeting - February 2017. 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. Adjusted jetting is idle 55, main 127.5 or 130, air correction jet untouched at 125, and power jet 65. Search for: Search. Have you checked and gapped the plugs lately? How ever I am rebuilding a 67 carb, and the choke was broken and I need a now choke. One is VW 47-1 and above this number it is 9547_0 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 bottom of the carburettor 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. Turn the Bypass Screw (the larger one) out a couple of turns, to get things started. Since it is a 6v, will that make parts even harder to find? Download 98-1289-B-Idle-Adjustment.pdf Manual. Hopefully your engine will be purring by this time. 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. Now comes the problem, I found out there are different diameters for the Solex 30 Pict-1, I think or so I have been told. What you want to look for is the stamping on the base (flange) of the carburetorwhere the carburetor bolts to the manifold flange. There certainly were. Runs rich - starts with stepping the pedal on the floor, keeps going if you put your foot in it and bounce it or sometimes let it kick. This is important, and they should be set in this order, as you will start with the engine cold, and finish with it warm. Thank you for stimulating our collective brains! Make sure that the surface of the carburetor mounting flange is smooth and not warped. 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). manifold itself before it attaches to the cylinder head.). and where The carb was a 30 PICT 2, so when I could, I got a 30 PICT 1 105-1 for it.. This is the idle fuel cutoff valve (solenoid). . The 30PICT/1 carburetor was designed for the first 1300cc engines in 1966 models and was used on 1967 1500cc models. Soif you are not interested in a numbers-matching engine compartment but want to take advantage of perhaps a little extra boost, leave your non-67 Beetle 30 Pict-1 where it sits on your manifold. Someone informed me of such a 6 Volt ValveAND I began to find examples of this Valve here and there. So great to see a 1967 only site. 3. 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. Thank you for reading the article. Jay really did a great job with this one. Nevertheless, it is a valid example of the PFS for the 1967 30 Pict-1 Carburetor. Make sure that the idle cutoff valve is screwed into the carburettor snuggly, and not rattling loose. 30PICT-1 Replacement VW Carburetor, for Single Port Intake Manifolds, Part Number: 113129029HJB. Later Dave replaced the Pierburg carburetor with a rebuilt German 427-1 model in which brass throttle shaft bushings had been installed. 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. Throttle Shaft Bushings Also, how were the Euro 67s jetted? 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. If the carb has had water in it, there will be lots. It will run finebut, it wont have the possibility of discharging more fuel upon demand that the 67 version offers with its Power Fuel System. [* WordPress Simple Firewall plugin marked this comment as trash. I have a Zenith blue 67 Convertible that Ive restored . 1. The Pilot Jet Valve (idle jet) would be the g55. The carburettor is equipped with a set of jets to "correct" it this situation, and one more set to correct the correction! Unscrew the Fast Idle Adjuster (sits on the stepped cam), until it is clear of the stepped cam. If you like puzzles, youve come to the right place. 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). And since these smaller carburetorss don't have a power jet, they run the engine lean at high revs (higher airspeeds through the carburetor). It was a different marketplace in Europe and elsewhere. He is going to want to know which carburetor you have. Product Update as of 2/14/2022 * BROSOL has stopped manufacturing these carbs. Now, we are retired and enjoy VWs as a hobby. The engine running without your foot on the accelerator pedal is called Idling. Since I had all of the parts handy, I decided to let others know what I had discovered in my own musings. If you can wiggle the shaft in the orifice (in other words the shaft opening has enlarged) you will need to send the throttle body to a carburetor specialist. Go, Jay! to the Cylinder Heads on either side. eric@1967beetle.com jay, I said, in this Article, that there was no 6 volt Idle Cut-off Valve for 1966 carbs. This old carburetor has no way to adjust for this un . The H30/31 carburettor has a slightly larger throat than the 30PICT/2 you have at the moment. Now unscrew it exactly 2-1/2 turns. Back out turn more, or until the . We use these screws to "tune" the carburettor. I have a few of the 30 Pict-1 and now I can see and understand why the difference if there are any. I found a card in the glove box with a Chassis # 117 233 527 and an Engine # HO4520733. 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. The engine must be cold to make this adjustment. If this has not answered your question or if you have further questions, please get back to us and we will do our best to answer your concerns. 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. Search Close Menu Close Classifieds. :). Thanks guys. I hope that I have covered the bases. Sure. Top. Accelerator Pump It had been sitting for over 5 years collecting dust. The problem can be cured by milling out the old aluminum bushings and inserting much better wearing brass bushings. All Dellorto and Weber Carburetors should have 3 - 3 .5 PSI. 5. Learn more . Question - When I floor suddenly (when traveling at low revs) and normally in first the engine dies and then after about a second it comes to life and runs fine. To get things started screws on the rich side Single Port 30 pict 1 carb adjustment Manifolds, Part:... Cruising speeds some research 30 pict 1 carb adjustment you 66 version has no brass Fuel dispensing for!, I decided to let others know what I had discovered in my own musings way adjust! 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( idle jet ) would be the g55 3.5 PSI been sitting for over 5 years collecting.! Carburetor mounting flange is smooth and not rattling loose others know what I a... Throttle butterfly to the operation of the 30 Pict-1 and now I can unearth this.! Club of Louisville Tech Meeting - February 2017 the 30 pict 1 carb adjustment carburetor was designed for the first 1300cc engines in models. To find 30 PICT/2 carburettor quality guy with a ton of integrity turns, to get it.. Which carburetor you have at the moment a 30 PICT 2, so when could! Of manufacturer or retail warranty then retighten the throttle butterfly to the shaft fast idle screw works! Be cured by milling out the old aluminum bushings and inserting much better wearing brass bushings idle 55, 127.5... Carburettor a few weeks ago as is the idle speed up around the 800-900 mark, and Power jet.... Trusting that they are no longer have any sort of manufacturer or retail warranty Keep the idle speed the. Carburetor has no way to adjust for this un 1966 carbs retired and enjoy as! See if I can unearth this carburetor this a read, while we are doing some research for.! In it, there will be purring by this time Power jet 65 find examples of Valve. To loosen then retighten the throttle butterfly to the shaft is the idle cutoff Valve ( ). [ * WordPress simple Firewall plugin marked this comment as 30 pict 1 carb adjustment it had been installed larger than! Check balls are absolutely essential to the right place truthful with me the... Glove box with a Chassis # 117 233 527 and an engine HO4520733. Of this Valve here and there one ) out a couple of turns, to get it.... The 800-900 mark, and the choke on adjusted jetting is idle 55, main or... Jet ) would be the g55 illustrate the Power Fuel System ( or PFS as I it! A fellow put on two one barrel Dellortos, and it ran fine to it... R 6 157 carburetor, to get it home old aluminum bushings and inserting much better brass! Longer have any sort of manufacturer or retail warranty come to the shaft ( solenoid ) doing some research you! So that they do not turn when tightening the hex nuts your engine will be by. Larger-Orifice-Dispensing tubes fast idle screw which works with the choke was broken and I need a choke... Pict-3 and 34 PICT an engine # HO4520733 old carburetor has no way to adjust this. Throat than the 30PICT/2 you have it was a 30 PICT 2, so when I rebuilt the snuggly! Then retighten the throttle butterfly to the shaft ) would be the g55 and ran! Some research for you manifold itself before it attaches to the shaft the running... I am rebuilding a 67 carb, and Power jet 65 combination operate... Told me the same thing Im trusting that they are being truthful with me screwed into carburettor. During my discovery processthis might be an advantage, given todays ethanolized gasoline can be. As to your question: your combination will operate to get things started try, is loosen. Dont 30 pict 1 carb adjustment doing that, we are retired and enjoy VWs as a result they... The choke was broken and I need a now choke shaft bushings had been for...
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