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rocket1 · 11-23-2019, 12:26 PM

If you have no mileage on that engine the rings in # 1 cylinder might not be seated,a compression check will give you some answers,60 lbs is good with a stock head.If no 1 is low shoot some oil in the cylinder and see if the pressure comes up,I had 35 lbs in a recently rebuilt engine in #1 cylinder,it turned out to be an intake valve not seating.

11-23-2019, 12:26 PM	#15
rocket1 Senior Member Join Date: Mar 2014 Location: Midland Park,N.J. Posts: 1,108	Re: #1 plug question If you have no mileage on that engine the rings in # 1 cylinder might not be seated,a compression check will give you some answers,60 lbs is good with a stock head.If no 1 is low shoot some oil in the cylinder and see if the pressure comes up,I had 35 lbs in a recently rebuilt engine in #1 cylinder,it turned out to be an intake valve not seating.