desired compression psi - Classic SeaCraft Community

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desired compression psi

10-17-2009, 03:12 PM

Fr. Frank

Senior Member

Join Date: Oct 2003

Location: Shalimar, Florida

Posts: 2,265

Re: desired compression psi

Quote:

...in the neighborhood of 120-140 the main factor is that there is no more than 10 lbs or 10% difference in all of the cylinders.

That's right on. Spec is 125 lbs for a '77 115, I don't have any other to hand.

Tim (BigShrimpin) is the guy to ask about the 2.0 vs 2.4 Mercs. I think they are both great motors. I know the 2.0L was made in 135, 150, 175, and 200 hp models, and the 2.4L was made out to 225hp.

__________________
Common Sense is learning from your mistakes. Wisdom is learning from the other guy's mistakes.

Fr. Frank says:
Jesus liked fishing, too. He even walked on water to get to the boat!

Currently without a SeaCraft

(2) Pompano 12' fishing kayaks
'73 Cobia 18' prototype "Casting Skiff", 70hp Mercury

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