JBugs - 34PICT3 Carburetor Replacement & Tuning

  Рет қаралды 29,367

JBUGS

JBUGS

Күн бұрын

Пікірлер: 53
@Bass.Player
@Bass.Player Жыл бұрын
I went to work for VW in 1971 and for the next 13 years I worked on these cars. I used to use a 130 main jet in these carbs, it did not impact fuel mileage but eliminated the flat spot just off idle. Those centrifugal only advance distributors will never work right on this car, they are only good for about 15/20 degrees of advance and this engine needs much more, it would run much better with the original distributor. (vacuum retard/advance) 1971 was the first year of the AS41 case which stopped the need for case inserts later on. These 1600's are pretty good engines...
@spleantrampoline
@spleantrampoline 2 ай бұрын
Wish he didn’t speed up the video. I wanted to hear how it increases in rpm.
@Mannyp91
@Mannyp91 25 күн бұрын
If RPMs have no reaction when idle & air screws are adjusted what does that mean? Clogged jets?
@Sam_Mebane
@Sam_Mebane 25 күн бұрын
Possibly, but an intake leak could also cause the same problem.
@travelbartenders
@travelbartenders 2 ай бұрын
I have a 71 bus with this carburetor, but I think the dude I bought it from didn’t tune it properly. Is there a reset position for the two screws to start from scratch to tune it? It keeps flooding. (High elevation- Denver)
@Sam_Mebane
@Sam_Mebane 2 ай бұрын
To go back to a baseline, we gently turn both screws in all the way. Do not over tighten them as the screws and the seat are very fragile. From there, turn both screws out 1 and a half turns, (360 degrees, then 180 more).
@travelbartenders
@travelbartenders 2 ай бұрын
@@Sam_Mebane thank you so much!
@lunarpking
@lunarpking Жыл бұрын
Those tach timing guns make this stupidly easy, first time I used one instead of doing it by ear it was just something else. Do you guys sell the vacuum advance module on the distributor by itself? I looked but didn’t see it, the car has what I think is the original distributor that works great but I’m almost certain the vacuum advance doesn’t work due to a bad diaphragm.
@Sam_Mebane
@Sam_Mebane Жыл бұрын
We don't have a supplier for the vacuum cans, no. A timing light with the tach readout was a game changer for sure, it makes tuning so much easier!
@Maurice-c6z
@Maurice-c6z 7 ай бұрын
Take the hose off the carb going to distributor, remove cap and cover, suck on hose and watch advance
@juanbarturen2726
@juanbarturen2726 3 ай бұрын
J Bugs. The 34 PIC carburator. What is the price?.I need a catalog. Thank you
@Sam_Mebane
@Sam_Mebane 3 ай бұрын
The carburetor is linked in the description and right here - www.jbugs.com/product/113129031KJB.html We no longer offer a printed catalog. All of our products and current prices are listed on our website.
@SteveBlack-kj3pm
@SteveBlack-kj3pm Жыл бұрын
Duda. No son mejores los carburadores Empi ??
@Sam_Mebane
@Sam_Mebane Жыл бұрын
En nuestra opinión no, este carburador tiene un circuito de aceleración mucho mejor, incluso si se utiliza con un distribuidor 009.
@ruskijhot9158
@ruskijhot9158 Жыл бұрын
Hola que tal! Que marca es el carburador? Y en donde lo puedo comprar? Y también el equipo que usa para sincronizar el carburador donde lo puedo comprar? Gracias!
@Sam_Mebane
@Sam_Mebane Жыл бұрын
El carburador está disponible en jbugs.com, busque el enlace en la descripción del video. No es necesario sincronizar un solo carburador. Utilizo una luz de sincronización con lectura digital de RPM para ajustar el carburador.
@OTTO-1303
@OTTO-1303 8 ай бұрын
This vid along with the SVDA vid helped a great deal. Thanks 👍👍👍
@Sam_Mebane
@Sam_Mebane 8 ай бұрын
We're glad to help Otto!
@vun7203
@vun7203 5 ай бұрын
where did you put all original Vacuum control parts !!
@Sam_Mebane
@Sam_Mebane 5 ай бұрын
We didn’t take any of them off, I don’t think…the owner of this car has all the parts he’s taken off sitting somewhere.
@андрейерошенко-й6б
@андрейерошенко-й6б 7 ай бұрын
Здравствуйте. Подскажите пожалуйста. Мотор не запускается. Схватывает и глохнет.
@Sam_Mebane
@Sam_Mebane 7 ай бұрын
Надеюсь, вы сможете перевести эту страницу - www.vw-resource.com/car_wont_start.html.
@андрейерошенко-й6б
@андрейерошенко-й6б 7 ай бұрын
@@Sam_Mebane спасибо почитаю
@андрейерошенко-й6б
@андрейерошенко-й6б 7 ай бұрын
@@Sam_Mebane Добрый день. Коммутатор есть на Volkswagen Жук или нет? Или только катушка стоит зажигания?
@андрейерошенко-й6б
@андрейерошенко-й6б 7 ай бұрын
Все запустил это пылесос😁 спасибо
@joehoupe8874
@joehoupe8874 7 ай бұрын
Will this work on a 1500 single port with a svda distributor?
@Sam_Mebane
@Sam_Mebane 7 ай бұрын
No, you would need our 30PICT1 replacement carburetor - www.jbugs.com/product/113129029HJB.html
@joehoupe8874
@joehoupe8874 7 ай бұрын
​@@Sam_MebaneNOTE: We do not recommend pairing this carburetor with an aftermarket SVDA style distributor as 30PICT carbs do not draw enough vacuum to properly actuate the vacuum diaphragm. It pairs well with original vacuum advance distributors which don't require as much vacuum signal.
@Sam_Mebane
@Sam_Mebane 7 ай бұрын
Correct, sorry it was early @@joehoupe8874 I should have clarified. It will work with an ORIGINAL svda (Bosch) distributor.
@marcodenson6394
@marcodenson6394 11 ай бұрын
I have 1969 single port bug. Will that fit in that manifold or do I need an adapter?
@Sam_Mebane
@Sam_Mebane 11 ай бұрын
You would need an adapter to fit the larger carburetor to the smaller intake manifold.
@ahernandez9860
@ahernandez9860 8 ай бұрын
Got mine installed starts up great, idles fine, but after revving it, it just dies out. Any suggestions
@Sam_Mebane
@Sam_Mebane 8 ай бұрын
There are a couple of things to check, but you might have a vacuum leak. Assuming you've gone through the ignition system, made sure that the timing is correct and the valves are adjusted properly, start the car and let the engine warm up. This is key as any tuning to the carburetor before the engine is warmed up and the choke is open is fruitless. Once the engine is warmed up, set the bypass/idle screw (the large one) to your preferred idle speed. From here, checking for a vacuum leak would be my next step. CAUTIOUSLY spray some brake or carb cleaner, ether, etc. (all very flammable liquids, so again use caution especially near the coil, distributor, spark plugs and wires. around the base of the carburetor, the intake manifold boots and the cylinder heads. Have a fire extinguisher handy! Listen for the idle/engine speed to increase. If it does, note where the fluid was sprayed and you've most likely found your intake leak. Hopefully this helps you track down your problem.
@ahernandez9860
@ahernandez9860 8 ай бұрын
@Sam_Mebane Thanks, Sam! All great tips and steps to make sure of upon installation on new carb. Seems like after getting warmed up and making small turns of bypass and volume screws, it has stopped dying after throttling up and releasing back to idle. Either had too much air or combination insufficient fuel. I removed 40 hp og German fuel pump as much as I did not want to and hooked electric pump back up after noticing empty fuel bowl. Now hopefully can get on road without dying out again. Cross your fingers 😄 🤣
@charlesloar3210
@charlesloar3210 9 ай бұрын
I have a 1500 cc engine in a Veep kit car. Would the 34 be a good replacement?
@Sam_Mebane
@Sam_Mebane 9 ай бұрын
That depends on the intake manifold, and possibly the distributor. If you have a single port intake manifold and original vacuum advance distributor, the 30PICT carburetor is best. If you have a single port manifold and and aftermarket vacuum advance distributor the 34 will work with an adapter plate and would work better.
@charlesloar3210
@charlesloar3210 9 ай бұрын
I have a Single port intake and a Bosch 009 distributer. @@Sam_Mebane
@Sam_Mebane
@Sam_Mebane 9 ай бұрын
@@charlesloar3210 in which case a 30PICT - www.jbugs.com/product/113129029HJB.html - will be your best bet.
@chrisfreemesser5707
@chrisfreemesser5707 Жыл бұрын
Related to this, how do you know when the throttle bushings are worn out and the carb needs to be replaced? I have what I believe is the original 30pict1 on my Bug and have noticed some slop in the rod on the throttle cable side
@Sam_Mebane
@Sam_Mebane Жыл бұрын
Sorry Chris, just saw this! You can check by spraying a little carb or brake cleaner (anything flammable) around the throttle shaft (carefully of course) and se if the idle speed increases. Additionally you can pull the air cleaner off and cover the throat of the carburetor with your hand slightly. There should be a very strong suction and the engine should stall out as soon as your hand closes the top. If the engine continues to run, or you can hear air entering the carburetor still, chances are the throttle shaft (or some other area) is allowing air to enter. Any slop up or down on the throttle shaft would indicate worn bushings though so it might be time to take it apart and at least do some further investigating.
@chrisfreemesser5707
@chrisfreemesser5707 Жыл бұрын
@@Sam_Mebane I've got fuel leaking out of the throttle shaft so I think it's toast. Just ordered one of your 30PICT1 carbs, we'll see how it works!
@Sam_Mebane
@Sam_Mebane Жыл бұрын
@@chrisfreemesser5707 I'm a big fan of them, I just installed one on our 1967 - kzbin.info/www/bejne/namoeGCHfrmIjrc and got it tuned in a video dropping on the 16th this month.
@RJLM330
@RJLM330 4 ай бұрын
Is the.vent that you plugged on the air cleaner to fan shroud PERMANENT? Please tell me why and if I should do it. It seem like the right thing to do. Like this and other series you are doing.
@stephenport4768
@stephenport4768 6 ай бұрын
We have E10 fuel in the UK do you have the same fuel and are their any issues with rubber seals perishing due to the high ethanol content
@Sam_Mebane
@Sam_Mebane 6 ай бұрын
We have the same E10-E15 blends here in the states. So far we haven't had any issues with the carb seals, it is always the rubber hoses that deteriorate so we replace them regularly.
@BognorYouthU13
@BognorYouthU13 5 ай бұрын
Andy, VW Engineering here. U.K. Ethanol E10, we have seen makes fuel pumps leak, and fuel hoses deteriorate. I’ve seen online testing show that over longer periods of time E10 starts to react with the alloy of these carburettors, causing a white powdery build up to form inside float chambers, which in turn could cause blocked passages. Don’t use it.
@thestove2407
@thestove2407 3 ай бұрын
​@@BognorYouthU13 All fuels contains ethanol ... these days
@tomasalvarez6040
@tomasalvarez6040 Ай бұрын
Can u show location of the idle jet and the main jet?,..i think mine are clogged
@Sam_Mebane
@Sam_Mebane Ай бұрын
www.vw-resource.com/carb_41.html - here is a good break down and write up on rebuilding / cleaning the 34PICT3.
@pungentpie
@pungentpie 7 ай бұрын
Just so I get this right, I set the idle high around 1500 and then using the air mixture screw make it smooth, and then lower the idle till around 900?
@Sam_Mebane
@Sam_Mebane 7 ай бұрын
After the engine and the carb are warmed up, and the choke (fast idle) screw is set, we set the idle speed at about 900 rpm using the bypass (large) screw. This starts at the 5:40 mark. Then we work on the air (the small) screw to get the highest idle speed. Turning the air control screw out until the idle speed gets to the highest RPM. Past this point, unscrewing the air screw actually slows down the engine speed. Once that point on the air screw is reached, we go back to the bypass screw and turn it in to set our idle speed to 900 rpm.
@pungentpie
@pungentpie 7 ай бұрын
@Sam_Mebane thank you very much, this could explain why I've never had it running quite right
@jaredhodges2331
@jaredhodges2331 7 ай бұрын
I appreciate your explanation. That makes a whole lot more sense. Thanks for the video tutorial.
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