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gmc684x4 · 12-30-2020, 10:51 PM

How big of a wear lip is on the top of the cylinders?

Did you do a compression test before tear down ?

Today's oils are better than the oils of yester year they have less waxs and leave sludge behind

12-30-2020, 10:51 PM	#16
gmc684x4 Registered User Join Date: Jul 2012 Location: Whitehorse yukon Posts: 1,218	Re: Seized Cylinder Head. Ideas for Removal How big of a wear lip is on the top of the cylinders? Did you do a compression test before tear down ? Today's oils are better than the oils of yester year they have less waxs and leave sludge behind