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Power Strokes
6.4 Aftermarket
Upcoming Head Gasket replacement
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[QUOTE="6.0 Tech, post: 1400030, member: 23001"] Typically you put a test spring in that seats the valve fully in the head, but doesnt have 100# of pressure, that is typically measured with the valve seal installed, so the valve isnt flopping around, and will give you a solid repeatable reading. There is some play in valve guides, but the seal should keep it centered. At least if i remember the engine building classes ive taken correctly LOL. Anyways, i still think its an issue with your rockers, especially since you said it followed the rockers. Did you make sure the rocker spacer that bolts to the head was fully seated? It has dowels in it that can bind, and cause goofy chit too. [/QUOTE]
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Upcoming Head Gasket replacement
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