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Old 10-26-2013, 12:14 PM
CantRepeat's Avatar
CantRepeat CantRepeat is offline
Join Date: Jul 2008
Boat: 06 X30
Location: Roll Tide!!
Posts: 9,959
Um, maybe leaving in the other spark plugs would give more back pressure and keep the pistons from moving. (after thought)

At TDC there shouldn't be a 60% leak through any valves unless they are bent or burnt.

Here's a rather long video that might help.

"Maybe" your issues are valve train. The oil consumption could be guide seals but normally that is seen by blue smoke at start up after sitting for a while.
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