TheSamba.com :: Beetle - Late Model/Super - 1968-up - View topic (2024)

1. I have a choke problem: as soon as i start the car up and rev it a bit, the butterfly choke valve at the top of the carb is in the fully open position. Doesnt seem right. Isnt it supposed to gradually open?

2. I have a heat riser problem: My heat risers are semi warm, but the throat/neck under the carb, at the top of the intake, is ice cold like someone put it into a deep freeze. That doesnt seem right. Don't the risers prevent this?

THese are my ideas. Are they logical? anyone got other ones? thanks!!
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Did your tune up include re-kitting the carb? Blow out the idle jet?

jim
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'72 FI Westy
'71 Super rear inside defrost vents no longer available

Also, could it be the muffler i bought that isn't heating things right?
I have a 74 super 1600 stock dp with a stock muffler for it with a right side preheater pipe. Is that right? or should it be a left side preheater pipe? thanks
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have you read this article yet, good stuff on this topic:

http://www.vw-resource.com/heat_risers.html

based on your symptoms, I would say that icing is causing your stalling problem...check the one heat riser to make sure it's not clogged and make sure there isn't another heat riser opening on the muffler that needs to be blocked off. If I'm wrong (happens a lot) about the dual heat risers, this may be enough to correct your problem...or, you may want to watch the classifieds for a new intake.

on your other issue:
If your choke is staying wide open, it wouldn't cause your stalling problem, because it's supposed to be wide open after the engine is warm. You will have some problems starting and keeping the engine running when it's cold. To fix the choke, check to see that you have power at the wire running to it when you turn the ignition on. Next, make sure it's properly connected on the inside and that it's adjusted correctly using this procedure:

http://www.vw-resource.com/choke2.html

If you have power and adjusting it doesn't work, you probably need to replace the choke element. It's very easy to do and not too expensive @ CIP1:

http://www2.cip1.com/ProductDetails.asp?ProductCode=VWC-113-129-191-G

but, it won't correct your stalling problem

this is what i purchased from mid america...

will it work with my 1600 dp on a 74 super?
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Yes, the cars that had double heater risers had them on the front and the rear so it would be a total of four connections. That setup you purchased will work just fine for your 74 that should only have the riser on the rear.

That one will also work with those that have the heat riser on both sides, the other connections will be on the heater boxes if they're needed.

Any other opinions or advice would be greatly appreciated!

Thanks!!
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also, i jst read a few posts from other topics....could the problem be how far my tail pipes are pushed in on either side? i just pushed them untill they hit something and stopped. is there a measurement? or is bottoming them out the right thing to do? thanks again.
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I don't know about which aftermarket manifolds you to buy.. but maybe you can try your local craigslist or look for an original German manifold here... just make sure the seller is able to blow through the risers before you buy or you will be in the same situation.

Also, I read that running Sea Foam through the gas once in awhile works to keep the carbon down.

http://www.vw-resource.com/vw-resource.com_non_ssl/muffler_discussion.html#pea

**UPDATE** NOW WILL HAVE A 2180 INSTEAD OF 1760