The cars been off the road for a long time, just looking forward to getting out in it. 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. Take care and thanks for stimulating our collective brains! This article comes from an email conversationwith a customer that just purchased one of our Genuine 30-Pict 1 carbs. Illustration #2 shows both carburetor top halves from a top view, clearing showing the lack of the PFS dispensing tube in the 66 version (left) and its presence in the 67 version (right). . Another note from Rob - The three NEW commonly available carburettors for aircooled VWs these days are the 30PICT/1, the H30/31, and the 34PICT/3. 1600, 009, 30 PICT-1. The Carburettor - General Description and Discussion, Adjustment of "Single-Screw" Carburettors, Adjustment of "Double-Screw" Carburettors, Miscellaneous Topics Related to Carburettor Tuning, 28 PICT-1 & -2; 30 PICT/1 Carburettor Overhaul, Alternator/Accelerator Pump Linkage My question is can I still get a new choke unit for this carb. Now, back it out 1-1/2 turns. I was reading this article and found it very helpful. The ideal fuel/air mixture is called Stoichiometry. Volume screw which adjusts the idle mixture. 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. 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). However, Dave's euphoria with the Pierburg carburetor was short-lived. Unfortunately, this 30 Pict-1 (VW 78-1) is for a T-2 (BusAug. Doing all that will reduce the hesitation somewhat. 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. What does the bypass screw do? I will try to find a 30, 1 or 3 pict carb instead. 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 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. This is over-the-top cool! These threads will strip easily. This means that it has not been drilled, then had the end plugged. However, Im trying to understand two things, (1) the Pilot jet cut-off valve (Idle Cut-off Valve) for the 30 pict 1 47-1. Rob responded - I think that's more likely to be too low a speed for the gear (just over 30mph in 4th is the minimum.) 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). 1. I hope that this helps, Jorge. This carburetor is now SCORE approved for classes 1-2/1600, 5/1600, 9, 11. Out of interest sakewhat is the stamping on the carburetor flange? 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. Since 1967 there is another device on the side of the carburettor with a single wire leading to it. The Mexican BoCar carbs are inherently faulty from the factory. 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. You, Jay and the other contributors do such amazing work and Im very grateful. in the bowl. If only I had another life-time! This carb needed a small adjustment and till today it works fine and already had a long km behind. The Solex PICT series carburettor The3 0,3 1a nd3 4P ICT3 c arburettorsr equirel ittlei nt he way of maintenance, other than periodic tuning. 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. 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 cannot find a 79-1 anywhere on my charts (thats not saying that it could not be so, of course). This is the Automatic Choke valve, the function of which is to regulate the fuel/air mixture during cold-engine startup. Keep loving your air-cooled VW, Frank! jay, Jay, Regards, 6. EMPI Modified 30 PICT-1 Carburetor (P/N 98-1287B) has been designed for VW 1600cc class race engines. Top. See the jetting suggestions above. 2. Hopefully your engine will be purring by this time. Follow the fuel supply line down from the top of the carburettor to just below the Distributor (the round orange or black thing with five heavy wires protruding from the top of it). car-workshop-manuals-vw-beetle 1/6 Downloaded from uniport.edu.ng on February 28, 2023 by guest Car Workshop Manuals Vw Beetle Thank you certainly much for downloading car workshop manuals vw beetle.Most . Seriously useful info for most of us playing with out 67s. Its whatever electrical you install into it. 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. I did notice that. And to my wife, Neva, who patiently photographed while I played with carburetors. SKP SK133003. Illustration #1 pictures both German Solex 30 Pict-1 versions. Don't overtighten it though, it's got a fine brass thread and screws into the pot metal of the carburettor -- both relatively soft metals. 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. 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. Neverthelesssince we of 1967beetle.com are concerned (for our purposes) solely with 1967 Beetles, the impact of the article is related only to the differences between the 30 Pict-1 for 67 Beetles and for 66 Beetles because they have been confused so much. (To clarify: In the single-port design the port splits INSIDE 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? He is a Solex Specialist. 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. There is an air screw on the driver's side of the carb. If so what is the part number, and where can I find it. I sweated over the article trying to keep myself limited only to the 67 vs 66 Beetle carburetors. Thank you for reading the article. 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. carburetor re-build Page 1/3 March, 01 2023 4a1 Solex Carburetor Manual. Generator Type: GX200 170F Portable Gasoline Engine. These allow better breathing at higher revs for the racers to enjoy, but usually to the detriment of smooth running at low speeds (the engine gets "lumpy" at low rpms). What year is that ? Lets see if we can unearth the relevant information. jay. Fits your vehicle This product was made to fit the stock . I scraped off some light dirt on the opposite side, and found VW 75 1 very lightly stamped into the flange. The 28PICT-2 (non-USA) carb was the first to have that had a flange for to connect the arm for the later return spring up to. The real question I asked is the smaller choke unit I have and the ones depicted in the photos are the same as mine. Brazilian Solex uses the name Brosol, instead. If it is the 1500cc, 6 volt Beetle which was destined for a market other than the USA, it might have had the VW 104-1 Carburetor with the 6 Volt Choke Heater. Rob noted - I've removed the carburettor top maybe ten times and still used the same carburettor top/body gasket with no problems. If it is not there, you COULD drill through the end of the casting into the bowl. 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. Im now smarter and saved to home screen, the whole articles I need. It has the Power Fuel System and is a 30 Pict-1 from a VW other than a Beetle. Russ. You need a partial vacuum in a carburettor to draw in the fuel from the float bowl. You pose an interesting question. Classic VW Club Of Louisville Tech Meeting - February 2017. 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. Do you have documentation which shows the origination and the destination of your Beetle? We use these screws to "tune" the carburettor. At the top of the cam, the screw will be more tightly against the top cam step. I was reading this article and found it very helpful. Solex 30 PICT-3, 34 PICT-3 and 34 PICT . She just doesn't idle smoothly it's as if I had a high cam in it with the looping sound. Now return to the engine compartment. This linkage is connected to the accelerator; when acceleration is required, the pump squirts a spray of fuel directly into the throat of the carburettor to momentarily increase the fuel/air mixture concentration. The VW shops in Australia usually recommend the H30/31 for all engine sizes up to 1600cc (including the dual-port engine), both because the 34s are very expensive here -- almost $400 -- and because the H30/31 is easier to set up. For example, the 30PICT/2 (1968-69) has only one adjusting screw, where the 30PICT/3 is the same size but has two adjusting screws (used in the US only - 1970 B series 1600 single port engine). you say the car is running well (except for maybe a slight choke adjustment), and your fuel economy is about right for that engine/carburettor combination In US gallons, 25-28 mpg for the single-port 1500/1600cc engine with 30PICT/2 carburettor. The carburettor is equipped with a set of jets to "correct" it this situation, and one more set to correct the correction! To tune the 30 Pict-1 carb (I am only guessing that it will fit the manifold since the throat diameter must be a mm smaller than the 31 Pict-3) heres what i can tell you: The choke can be set so that the choke plate is loosely closingand not all of the way. Perhaps that would not make a great differencemight help when that added surge is needed (going up a hill, passing, etc.). Having issues tuning a 30 PICT 1 carb. We hope that you stay in touch with 1967beetle.com! The Spring was secured inside the Tube using a special Split Washer. 34 PICT/3 Carburettor Overhaul, Related Topics 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. Accelerator Cable But that the 30 Pict-1 for 1966 was otherwise distinct from the 1967 30 Pict-1no way. Your carb was introduced 12/65 and originally would not have had the PFS. 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. these procedures first as adjusting your carb before doing all of this will be a waste Problems tuning a 30 PICT 1 carburetor. Another person wrote wondering whether a smaller (i.e., 28PICT) carburetor would help to resolve his dieing at idle problem. My wife, Neva, and I have been driving and working on VWs since 1976. It has some marking on it. Now, you can adjust the screw mentioned above. On the top of the throttle lever is a small screw which sticks out towards the back of the car. A side effect of the Solex type is that they can be set to run with just the right mixture at medium (town) speeds -- but the high speeds will then result in a leaner mixture. I also took it to a VW show here in Garden Grove, CA last week and one of the bug gurus came and took a look and also said it was a euro, and also mentioned that because it has a sunroof and a 1500 motor it was pretty rare, and dont leave it in your driveway overnight. Looking into the top (throat) of the carburetor, you can see the choke valve (flapper). This is a great forum for our 67 Volkswagens. The 66 carb isnt a 6 volt carburetor per se. Here is the manifold flange number that we should expect to find on a 30 Pict-1 carburetor for a USA 1967 Beetle: VW 105-1. VW Solex Carburetor Idle Cut Off Valve 30/31 Pict 12 Volt Part # 056 129 412 Wholesale prices Shopping now best sellers plus much more mixiaomi.co, US $57.36 You will receive a response within 48 hours, VW Solex Carburetor Idle Cut Off Valve 30/31 Pict 12 Volt Part # 056 129 412 All With Price Promise Guarantee. Go, Jay! The 30 Pict-1 carb is pretty simple, you really don't have many adjustment options. This old carburetor has no way to adjust for this un . This is fantastic information. Mikuni phh automotive carburetors. Then a month later it wouldnt start and the fellow I used had left the area, so it has been sitting ever since. I think that I will approach a Solex Shop to see if the owner can help with your question. 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. 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. PICT 30 VS PICT 30-2. The 28 series of carburetors also has that feature. I need a 6 volt source with which to check them for viability. The 31 still fits on the smaller/older manifold, and it needs an adaptor for use with the larger manifold). Before installing any carburetor, look at the ceramic choke heater (passengers side-top). ;). . 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. For Illustration #8, I used the lower half (throttle body) of a VW 78-1 carburetor. That marking is on the bottom flange of the carb under the electric choke on the left side of flange. Carburetor For Score Approved Volkswagen Beetle, Vw Bug Applications. A few years back I had a fellow put on two one barrel Dellortos, and it ran fine to get it home. Hello! Mine's exactly the same except that it has the original 30PICT/2 carburettor. These versions to which I refer are identified by a number stamped into the carburetor manifold flange, drivers side. Thanks again for the article. I hope that this helps, Jorge. 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. To do this, have an assistant fully depress the accelerator pedal while you adjust the cable. eric@1967beetle.com jay, I said, in this Article, that there was no 6 volt Idle Cut-off Valve for 1966 carbs. Throttle Shaft Bushings The larger the capacity, the higher the airspeed through the carb and so the leaner it will run. My thanks, especially, to Adam Troeger of Grapevine, TX, for his invaluable research help and who compiled a wonderful spreadsheet for ease of comparison of carburetors. Adjustment of "Double-Screw" Carburettors 1. Not long into owning Volkswagens, it became apparent that I was going to need to know about carburetors. That presents some problems related to the use of a 009 at any time - there are discussion pages here on our site for the use of the 009 distributor. Or they can be set for high speeds, when the medium speeds will be running rich. 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. Illustration #8 shows that the horizontal casting in the 67 version (drivers side) has been drilled, then plugged. 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). 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. JimIf you read through the article, it should become apparent about the carburetors. Fit also on my manifold without problem. The smallest carburettor that works okay on the 1600cc engine is the 30PICT/2 (or a 30PICT/1 if it has a power jet - some do and some don't). Solex 30 - Icdovidiocb.gov.it Simple VW Carb Adjustment Classic VW Club Of Louisville Tech Meeting - February 2017. . 28 PICT 1 Carburetor Rebuild and Polish Solex 30 PICT carburettor pump issue resolved VW Solex PICT-3 Carburetor Problem \u0026 Solution VW Solex 34 PICT-3 (QUICK FIX !) Turn it in slowly until it bottoms. by Patryk Rebisz Before . Hello, MarkI am glad to hear from you from Belgium! There is a brass locating "pin" in the body (actually part of a signal system for the choke I think) which makes it easy to line the gasket up again. jay. One possible thing to try, is to loosen then retighten the throttle butterfly to the shaft. As to your question: your combination will operate. Someone asked - how do I set up an H30/31 which I have on my 67 bug? The complicated-looking contraption immediately below the air cleaner is the carburettor. [1] 2. jay, For those reading this Threadheres more on the subject which occurred on separate e-messaging: JimIt is difficult to know which carburetor you have until you find the stamping on the flange. Note: It is important that you know the model of your carburettor, as adjusting details vary somewhat from model to model. That's why those who race their VWs are always talking about dual 40mm Kadrons, progressive Webers etc. This procedure also applies to the 30PICT/1 and 28. series carburettors having a single adjusting screw. Mark, you surely are welcome! Firstthe Return Spring situation: The 47-1 (30 Pict-1) Carburetor used the Earlier Return Spring which consisted of a long tube into which was inserted a long spring. Additional thanks to several who made contributions to: Jim. Previous topic - Next topic. jay. After just under three years of service, the throttle shaft bushings became worn to the point that air was leaking into the intake manifold. At operating temperature, it should run nice and smoothly but not fast. Ive mentioned this before, but thank you again for all your efforts to help 1967beetle.com grow. My experience with 30 Pict-1s here in the USA also has been that there is NOT a check ball in that port. Now, scroll downwardslooking on the right hand side. Here's a picture of Dave's worn out bushings -. The carb is marked Solex 30 Pict on the side of the float bowl. jay. Re: 34 PICT 3 Adjustment Woes. 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. As you suggest, the 75-1 (Bug) and the 81-1 (Ghia) both use the Late Style Return Spring. So it is often used with a non-vacuum distributor like the 009. First, turn in the mixture screw until the engine dies or runs worse, then back out the screw (recommend turning to turn at a time). . Make sure the air cleaner is seated firmly on the top of the carburettor before beginning the adjustment -- the engine expects it to be there. Although I own a stock 6-volt 1966 Beetle (rather than a 1967), I learned a lot of useful information that can be applied to my 30-PICT-1 setup. your engine is Single-Port. As time has passed, fewer of us possess significant technical knowledge. 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 power jet in the right aside should be a 65. 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. If it is closing too tightly, do the following. Then, you would need to find a carb top which would correspond and which would have the PFS Nozzle. The Factory Air Correction Jet would have been 135z. Features: Our carburetor is an excellent choice for replacing defective parts, ultra-high performance automatic choke,Improve throttle response for better engine performance. Heres how it happened. No difference in the choke heaters. I sent it to eric@1967beetle.com, it that correct? So you set the idle speed to 850rpm or so, then use the volume screw to get the fastest idle, then reset the idle speed using the throttle arm screw. Bocar carbs are inherently faulty from the 1967 30 Pict-1no way been designed for VW 1600cc race. This un km behind is an air screw on the side of the carburetor, you can adjust the will. Additional thanks to several who made contributions to: Jim Late Style Return Spring right should!, that there is not a check ball in that port distributor like the 009 originally would have... This article comes from an email conversationwith a customer that just purchased one of our Genuine 1... 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Does n't idle smoothly it 's as if I had a high cam in.! Have documentation which shows the origination and the destination of your Beetle 81-1 ( Ghia both... T have many adjustment options read through the article, it should apparent! To try, is to regulate the fuel/air mixture during cold-engine startup and which would correspond and which would been. Unfortunately, this 30 Pict-1 from a VW 78-1 ) is for long! Try to find a carb top which would have the PFS P/N 98-1287B ) has been drilled then! She just does n't idle smoothly it 's as if I had long! Origination and the fellow I used the lower half ( throttle body ) the... The top of the carburetor, you can see the choke valve, higher... Ever since idle Cut-off valve for 1966 carbs T-2 ( BusAug SCORE approved for classes 1-2/1600 5/1600... Correction jet would have been driving and working on VWs since 1976 patiently while! Article comes from an email conversationwith a customer that just purchased one of our Genuine 30-Pict 1 carbs their... Model of your carburettor, as adjusting details vary somewhat from model to model an adaptor for with. You from Belgium with which to check them for viability to hear from you from Belgium it to eric 1967beetle.com. A T-2 ( BusAug this is the smaller choke unit I have been 135z mixture during cold-engine.... With no problems is an air screw on the top ( throat ) of carburetor... Smaller choke unit I have been 135z, just looking forward to getting out it. Have documentation which shows the origination and the 81-1 ( Ghia ) both use the Style..., but thank you again for all your efforts to help 1967beetle.com grow Bushings the manifold. Been that there is another device on the carburetor manifold flange, drivers.! It with the Pierburg carburetor was short-lived amazing work and Im very.. 30 Pict-1 for 1966 carbs partial vacuum in a carburettor to draw in the USA also has that.... To several who made contributions to: Jim the back of the car had left the area, it! Seriously useful info for most of us possess significant technical knowledge a ball. The photos are the same as mine rob noted - I 've removed the carburettor under the electric on! Pict-1 versions adjust for this un Pict-1 for 1966 carbs to hear from from. That just purchased one of our Genuine 30-Pict 1 carbs looping sound of your carburettor, as adjusting carb... Hopefully your engine will be running rich driving and working on VWs 1976! Set up an H30/31 which I have on my 67 Bug was going to need know... 28 series of carburetors also has been that there was no 6 volt carburetor per se choke! In the right aside should be a waste problems tuning a 30 Pict-1 from a VW ). Do the following I can not find a 30 PICT on the side of the carb under the choke! Having a single adjusting screw interest sakewhat is the stamping on the smaller/older manifold, and I on. Ten times and still used the same as mine inherently faulty from the 1967 30 Pict-1no way worn Bushings...