What is a decent compression for the 1929 Plymouth engine?
I would say between 38-40pound
But mainly to have consistant figures between all cylinders
Ian
When I recently checked mine, it ranged between 58-62 across. Dry test.
I had the same results as racertb.
SteveG
I agree with all, especially Ian's statement:
"But mainly to have consistent figures between all cylinders"
My 2 cents, Chet...