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1942deluxe · 02-06-2018, 12:43 PM

What type of oil do you have in it? Rebuilt an engine in a 48 Ford some years back and put Motorcraft 10-30 in it. Rings weren't seating. Ended up using a mineral based oil for break in and after about 100 miles rings seated. Just a thought...

02-06-2018, 12:43 PM	#12
1942deluxe Senior Member Join Date: Jan 2011 Location: Albion, PA Posts: 731	Re: gas washed cylinders and ring sealing What type of oil do you have in it? Rebuilt an engine in a 48 Ford some years back and put Motorcraft 10-30 in it. Rings weren't seating. Ended up using a mineral based oil for break in and after about 100 miles rings seated. Just a thought...