--> TeamGrumman-List message posted by: Geoffrey Hickey <ardri@comc...>

TeamGrumman@aol.... wrote:
> --> TeamGrumman-List message posted by: TeamGrumman@aol....
>
> I'm surprised no one wrote in to comment on what I found.
>
>  
OK, I'll comment,

If the tappets are varnished and carbon-coated, doesn't that also imply
a temperature problem? Or are they generally like this when
disassembled? (Maybe I should leave out the "or", given the temperature
problems so common to our Lycomings.)

When the old cylinders on the Cheetah failed the wobble check at 400
hours SOH, the #4 cylinder also had out-of-tolerance DTC on the exhaust
valve due to a tuliped and eroded valve head. More over-temperature
damage, I suspect.

- Geoff Hickey -
Cheetah N26681



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