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Sticking exhaust valve - #7 - Gen VI 088


Sticking exhaust valve - #7 - Gen VI 088

Old 07-21-2020, 01:47 PM
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Thatís a 1/2 hour question. Let us know after you pull it.
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Old 07-21-2020, 02:00 PM
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I had the same issue...you are having a few years ago....leaking header...bad valve guide....
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SB (07-21-2020)
Old 07-21-2020, 05:25 PM
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Got the header off and put the camera in there. Iíll see if I can get pics off of it later, but it looks like either the casting failed or the header leaked.

The header was dry and black but shoving the camera up in the tub showed ďsomethingĒ that could be water or could be oil. Iíll need to get it out of the boat.

The port is crumbling and it looks like something welded itself to the stem which is saying something considering the 502 has inconel valves in it. Fun.

Anyway, itís fubar. Iím going to pull both engines then look at storing the boat for a bit while I get stuff redone.
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