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oklahomaduner · 12-07-2010, 10:55 PM

Well I ran the truck by the car wash again today and blasted out the engine bay. Brought her home, pulled the plugs and started testing the compression. Every cylinder hit 120 psi except for the drivers side middle cylinder. First time it hit 80, second time it hit 90, poured a bit out oil in it and it hit 100. We stopped there for the evening due to sleet and some nice cold wind that was rolling in. But I got a chance to pick up some Marvel Mystery oil that we'll drop into all the cylinders, oil, and gas so hopefully the rings will loosen up a bit.
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12-07-2010, 10:55 PM	#33
oklahomaduner Registered User Join Date: Dec 2008 Location: Oklahoma City Posts: 447	Re: '66 GMC BBW w/351E and Factory Buckets Well I ran the truck by the car wash again today and blasted out the engine bay. Brought her home, pulled the plugs and started testing the compression. Every cylinder hit 120 psi except for the drivers side middle cylinder. First time it hit 80, second time it hit 90, poured a bit out oil in it and it hit 100. We stopped there for the evening due to sleet and some nice cold wind that was rolling in. But I got a chance to pick up some Marvel Mystery oil that we'll drop into all the cylinders, oil, and gas so hopefully the rings will loosen up a bit. Posted via Mobile Device __________________ 1966 GMC Extended cab 1 1/4 ton 4x4 My build thread 1958 Chevy 1 ton dually flatbed My Dad's build thread 1966 GMC Custom Trim Big Back Window W/351e My Time-Killing Project Truck 1966 (Not So) All Original Chevy Custom Trim Suburban My Dad's Time-Killing Project Truck