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#1 |
Registered User
![]() Join Date: May 2005
Location: Beauregard, AL
Posts: 64
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She won't idle...any ideas?
Last night I replaced the leaky exhaust and intake manifolds without a hitch on the ’70 C10 with 250 L6. Exhaust doesn't blow into the engine compartment now and it sounds better. The problem I have created is the engine won't idle now. It just dies out if I let up on the accelerator. Nothing seems to have changed with the carburetor, or anything else that I can see.
Any ideas on what I should be looking for? Thanks!
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------------------------------------- Tim '67 C/10, '04 Tahoe ------------------------------------- |
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#2 |
Registered User
Join Date: Aug 2002
Location: Farmers Branch, Tx
Posts: 1,009
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possibly vacume leak around intake?
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#3 |
Questionable
Join Date: Mar 2005
Location: Atlanta
Posts: 13,376
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Does it continue after the engine heats up? Do you have a manual choke (top right-hand side of the dash)?
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#4 | |
Registered User
![]() Join Date: May 2005
Location: Beauregard, AL
Posts: 64
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Quote:
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------------------------------------- Tim '67 C/10, '04 Tahoe ------------------------------------- |
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#5 |
~Rest In Peace~
Join Date: May 2005
Location: CALIFORNIA NOR CAL
Posts: 9,707
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try readjuting the carb now that a new intake gasket is place maybe the carb was set for when the intake had a slight leak and now thats is seal readjustment might need to be and check your timing again
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is it fast ? it has a lighting bolt donut? B___H please, I can remove 90% of your so called "beauty" with a kleenex |
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#6 |
YES_____NO
![]() Join Date: Jul 1999
Location: Somewhere in the vicinity of betelgeuse
Posts: 7,351
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I had the same problem on my 48 wilies that has a buick v6. the gasket under the carb. failed causing a major vacuum leak.
The damn thing would run great at about 1500rpm, but as soon as it went to idle it died....
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#7 |
Registered User
![]() Join Date: May 2005
Location: Beauregard, AL
Posts: 64
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Thanks for the input. I retightened the carb and manifold bolts and tweaked the carb adjustment screws a little. Was most likely vacuum and carb adjustment problem. It will idle now, but still needs a little more tweaking. Was most likely vacuum and carb adjustment problem.
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------------------------------------- Tim '67 C/10, '04 Tahoe ------------------------------------- |
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#8 |
Registered User
Join Date: Jun 2005
Location: Auburn, AL
Posts: 1
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One way to check for vacuum leaks involves a spray bottle of starting fluid or even WD40. With the engine running you can direct the spray at potential sources of leaks like the intake port gaskets, carb gasket, fittings, etc. The engine will change speeds when you spray around a leak. Usual caveats related to fire and extreme caution apply.
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