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Classic/Antique Car Repair/Compression readings on ModelA engine

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Expert: - 7/24/2010


Question
Jack- I have a spare Model A Ford engine and recently I did a compression check- All 4 Cylinders read about 55. Would this be considered good? Seems like even wear but I do not know if it is worth using as is or needs overhaul.
Thanks for any information you can provide!
Bob

Answer
I could use that engine.  My block has a crack in it.  Sure it is good.  55 is good.  Just make sure the rods are good and tight, check the valves and do what is needed, and build a test stand and get it running.  Good luck and have fun with that car.
jack

Classic/Antique Car Repair

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jack bahm

Expertise

Only repair type questions on the 1928-1931 Ford Model A.

Experience

Owned one when I was 15 yrs old, and now have owned 5. Still own and play with 2 of them.

Organizations
Oakleaf region of MARC. Model A Restorers Club. I have put several Model A videos on the Oakleaf site that may be of help. Things like how to start the A, how to Time it, how to troubleshoot it.. Go to oakleafregion.org and you will find them. jack

Publications
"More than you need to know about cars." Just a small book for Car Nuts. Blurb.com "Model A Ford Tips and Hints" Blurb.com 2010 Many Model A movies that can be found on youtube.com/jackbahm

Education/Credentials
BSME LSU, 1958, Masters of automotive engineering from the Chrysler Institute of engineering, 1960, MBA Mich State, 1976. Worked as an engineer at Chrysler from 1958 to the end of 1991.

Awards and Honors
Two patents while working in auto industry.

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