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03-11-2004, 12:13 PM | #1 |
71 DELUX
Join Date: Sep 2003
Location: Northern CA / Sac
Posts: 1,056
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stumble/stall at idle
OK, now that things are drying out around here in Sacramento I am finally getting a chance drive my new toy a bit more. I've worked out the major bugs and this is what I've noticed in the last few days of driving it.
My 71 LWB 350 wants to "almost" stall once it is warmed up, of the line. Like sitting at a stop light... when the light turns green and I touch the throttle, I really am not certain if it is going to stop or go. So what I got into the habit of doing last night was simply applying some gas while on the brake to make sure I didn't stall. This truck came to me with the exhaust split, glass-packs, stock manifolds and stock carb. The only change I've made was to add an open air cleaner/filter. So is this simply an idle adjust matter, or is there something else I ought to know/do? THANKS! |
03-11-2004, 12:22 PM | #2 |
Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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It could be as simple as an idle adjustment. It sounds like your carb is lean in one of the idle jets. If adjustment does not work then one of the jets could be plugged. I have had success in clearing a plugged idle jet problem by removing the jet and blowing out with compressed air. If that does not work, then the carb will need to be dissembled and cleaned.
Jim |
03-11-2004, 12:33 PM | #3 |
Registered User
Join Date: Mar 2003
Location: Northern Illinois
Posts: 2,181
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Someone told me one time that this could be caused by a small vacuum leak -- are there any vacuum ports unplugged? Could you have an old/cracked vacuum lines?
Brian |
03-11-2004, 12:54 PM | #4 |
71 DELUX
Join Date: Sep 2003
Location: Northern CA / Sac
Posts: 1,056
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Cool, I'll check out both of these things after work!
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03-11-2004, 08:21 PM | #5 |
Registered User
Join Date: Jan 2001
Location: Killingworth, CT. USA
Posts: 3,378
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I would check your carb accelerator pump operation. If it's not doing it's job it will cause your stumble also. With engine off, remove air cleaner, climb in there with a flashlight and look down in the primaries while operating the throttle from idle position to wide open, you should see a nice squirt of gas enter in each barrel, if not you have found your problem.
__________________
1971 C10 swb stepside 350/700R4/3.73posi (retired as of 4/22/03) 1998 S10 short bed 2002 S10 Blazer 1942 Oldsmobile 1958 Massey Harris Pony 1951 Wife Killingworth, Connecticut May those who love us, love us, any of those who do not love us, may God turn their hearts. And if God is unable to turn their hearts, may he turn their ankles so we may know them by their limping. A man who works with his hands is a laborer; a man who works with his hands and his brain is a craftsman; but a man who works with his hands and his brain and his heart is an artist. |
03-12-2004, 12:09 PM | #6 |
71 DELUX
Join Date: Sep 2003
Location: Northern CA / Sac
Posts: 1,056
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thanks Gordo
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