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gdmn852 · 02-09-2022, 04:37 PM

Also is the cylinder head gasket was leaking from what I have seen one will read a lot lower than the rest ,50 pounds probably do to engine having some miles on it, if it ran well before without oil burning and rods and mains good,I wouldn’t start taking head off .Valves can give low compression too if need ground.You can check this by putting a small amount of oil in each cylinder and recheck compression, if it goes up will indicate rings .Please let us know what you find out. Sure you will get more reply's on this.

02-09-2022, 04:37 PM	#3
gdmn852 Senior Member Join Date: Feb 2019 Location: Erie Pa Posts: 961	Re: Model AA cyclinder compression Also is the cylinder head gasket was leaking from what I have seen one will read a lot lower than the rest ,50 pounds probably do to engine having some miles on it, if it ran well before without oil burning and rods and mains good,I wouldn’t start taking head off .Valves can give low compression too if need ground.You can check this by putting a small amount of oil in each cylinder and recheck compression, if it goes up will indicate rings .Please let us know what you find out. Sure you will get more reply's on this.