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09-17-2018, 07:20 PM | #1 |
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Join Date: Jul 2014
Location: Boxborough, MA
Posts: 274
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Skipping during acceleration when engine is warm
So I noticed this issue about a month ago when I was driving my 30 Tudor. When the engine is cold, it runs and accelerates with no issue. Once the engine warms up to operating temp, I have bucking and skipping during acceleration. I had a Zenith on the car, but am now running a Marvel with the same issues.
I have re-timed the engine, changed the oil, cleaned and set the points, re-gapped and cleaned the plugs, and cleaned out the whole fuel system. Any thoughts? |
09-17-2018, 09:41 PM | #2 |
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Join Date: May 2010
Location: Young Harris, GA
Posts: 1,815
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Re: Skipping during acceleration when engine is warm
Try a new condenser on the distributor. They often act funny when hot but do OK when cold.
Report back.
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Jim Cannon Former MAFCA Technical Director "Have a Model A day!" |
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09-17-2018, 09:47 PM | #3 |
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Join Date: Aug 2014
Location: Southwick, MA
Posts: 590
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Re: Skipping during acceleration when engine is warm
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09-17-2018, 10:15 PM | #4 |
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Join Date: Apr 2015
Location: Saint Cloud Mn
Posts: 745
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Re: Skipping during acceleration when engine is warm
Possible plug fowling.
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09-17-2018, 11:12 PM | #5 |
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Join Date: Apr 2011
Location: Davenport, Iowa
Posts: 2,109
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Re: Skipping during acceleration when engine is warm
Loosen the gas cap so that air can get inside the tank and then take the car for a drive. Problems arise with a plugged cap vent when the weather is hot - like now.
M. |
09-18-2018, 05:39 AM | #6 |
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Re: Skipping during acceleration when engine is warm
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09-18-2018, 07:45 AM | #7 | |
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Join Date: May 2010
Location: Rutland, MA
Posts: 81
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Re: Skipping during acceleration when engine is warm
Quote:
Question on the (4) Jumper wires? Should it be two one to ground and the 2nd to the pass side of the coil? thanks,
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Keith |
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09-18-2018, 08:24 AM | #8 |
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Join Date: Apr 2013
Location: Northwest CT
Posts: 1,092
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Re: Skipping during acceleration when engine is warm
Every time I've thought a problem was fuel, it turned out to be ignition. Check everything in the ignition system you haven't already checked, you'll find the culprit.
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09-18-2018, 10:18 AM | #9 |
Senior Member
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Re: Skipping during acceleration when engine is warm
You want to ground the cond. then go from center of cond to pass side of coil. Guess that’s just two jumpers.
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