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74 AS Stalling Issue

Started by Brandon, 27 July 2010, 09:44

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Brandon

Well I'm trying to sell my 74AS Beetle (Debated sticking my 4 speed setup in there to sell it but I feel bad about killing the AS). Car starts fine and idles fine, goes into all gears well. The only problem is that after about 2 minutes of driving, it stalls if left in a gear. Leave it in neutral and give it a bit of gas, it will stay going. Put it in gear and it slows down and dies in about 5 seconds. It started doing this in an intersection about 2 months ago when I tested it, the only way I could get going was to floor it, start the engine, shove it in gear, and it JUST barely went. Hoses are the original AS hoses but they seem to be in good shape, and it always ran good before?

Bookwus

Hiya Brandon,

My first reaction to your description of symptoms was "he needs to do a tune up".

This does not sound like an AutoStick specific problem.  Basically, I'm thinking that your idle speed should be upped a bit.  It should clock in around 950 RPMs.  How are your points?  And has the beast been timed recently?

All of this is NOT to say that something couldn't be wrong in the AS systems, but it really does sound like a tuning issue.
Mike

1970 AS Bug

68autobug



Yes, I agree it may be an engine tuning thing.
as the engine with the autostick needs to have power all the time
so, the idle is 950 to 1000rpm...
maybe Your points are closing up??

concerning the vacuum hoses...
You cannot tell with the cotton covered hoses...
they can have splits in them and You cannot see them....
I don't like the cotton covered hose... because of this...

same as cotton covered fuel hose....
You only know its gotten a split in it because fuel comes out or the hose gets wet with fuel.

cheers

Lee in Australia




-- Helping keep Autostick beetles on the road --
   -1968 Silver metallic 1600 single port Beetle - with BOSCH  SVDA and new BROSOL H30/31 carburetor with GENIE Extractor exhaust system with a quiet thunderbird muffler

http://photobucket.com/68autobug

68autobug


yes,
I agree with Mike...
these things shouldn't happen just because its an autostick...
it most probably would happen with a manual car too....

the autostick doesn't drain power from the engine....
when everything is going well...

LEE

-- Helping keep Autostick beetles on the road --
   -1968 Silver metallic 1600 single port Beetle - with BOSCH  SVDA and new BROSOL H30/31 carburetor with GENIE Extractor exhaust system with a quiet thunderbird muffler

http://photobucket.com/68autobug

crazyguyla

Brandon,

If the tune up doesn't fix the stalling issue, here's what I found causing the problems with my AS. The rubber boots on my dual port intake manifold were splitting. This cause a very rough idle and stalling. After replacing both boots, the stalling issues was fixed. Make sure you tune the engine first before trying anything else.

Those cotton covered hoses are suspect too. Mine looked fine until i touched one. It literlly crumbled under my touch.

Marcus

!970 Beetle