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Tinker · 03-19-2013, 10:28 AM

I agree with the guys saying it's a valve issue. Hey, 9 years and you have some stuck or sticky valves.

I'd want to pull the top end myself (intake, and heads). Then you can get a good look at what you have and which ones are sticking. Hit the valve guides with MMO or whatever solution you prefer and work the valves that are stuck but tapping them in with a softhammer and turning the engine over to raise them up. Time is an essence, and it will take some time and some oil. Best to soak as long as you can stand to let it alone. Couple days.

100psi on a few cylinders is good for a flathead that has been sitting for a decade. So it sounds like you might have a good runner once the valves are free.

Best of luck.

03-19-2013, 10:28 AM	#24
Tinker Senior Member Join Date: May 2010 Location: MN Posts: 7,053	Re: No compression I agree with the guys saying it's a valve issue. Hey, 9 years and you have some stuck or sticky valves. I'd want to pull the top end myself (intake, and heads). Then you can get a good look at what you have and which ones are sticking. Hit the valve guides with MMO or whatever solution you prefer and work the valves that are stuck but tapping them in with a softhammer and turning the engine over to raise them up. Time is an essence, and it will take some time and some oil. Best to soak as long as you can stand to let it alone. Couple days. 100psi on a few cylinders is good for a flathead that has been sitting for a decade. So it sounds like you might have a good runner once the valves are free. Best of luck.