Helping a friend with a 1976 FI that has intermittent low RPM stumble |
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Helping a friend with a 1976 FI that has intermittent low RPM stumble |
Tdskip |
Jun 9 2021, 03:38 PM
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#1
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Advanced Member Group: Members Posts: 3,686 Joined: 1-December 17 From: soCal Member No.: 21,666 Region Association: None |
Hi folks-trying to help a friend out here that has a 1976 running its fuel in Jackson still and has a intermittent low RPM stumble where it feels like a cylinder or two or cutting out and then it recovers. I don’t have any set time with this injection system and I’m wondering if there’s a short list of weekly things to examine.
It only seems to happen at lower p.m., and I was able to invoke the issue by starting in second gear as a rolling start and almost flooring it, that seem to make it happen about every other time. Pulls cleanly once it recovers and always over 4000 RPM. Thanks! |
rjames |
Jun 9 2021, 03:54 PM
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#2
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I'm made of metal Group: Members Posts: 3,950 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest |
Starting in second gear sounds like a sure fire way to lug the engine and I don't think would help you troubleshoot the issue.
There's the usual stuff you should do first- adjust the valves and verify the timing is correct. Assuming those are set correctly, it sounds like it's running a bit rich or lean- either one could cause a stumble off the line... or the distributor needs cleaning. Is it all stock? |
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