On Sep 27, 9:21 am, "Dan Luke" wrote:
"Jay Honeck" wrote:

Two valve lifters (the things that rides on the camshaft) have faces
that look like someone took a hatchet to them.

Inactive Lycomings are particularly susceptible to this, so say the engine
gurus.

Doctor's orders: FLY OFTEN!

Aye-aye, Doc! Bay Minette tonight, Baton Rouge tomorrow.

--
Dan
T-182T at BFM

It's much worse if the owner goes to the airport, starts and runs the
engine for awhile, then shuts it down. A cold cylinder leaks
considerable combustion gases past the rings, and since those gases
contain water vapor and the crankcase is relatively cool, the vapors
condense and leave water in the case. That water mixes with the oil
over time and, in the presence of metal, creates acids that eat the
engine from the inside.
So, unless you plan to fly it and get that oil temp up to at
least 160 degrees for a half hour or so to boil off the water that
forms during warmup, it shouldn't be started at all.
I often hear of some airplane for sale whose owner was so
conscientious about running it up now and again, but couldn't fly it.
Such engines are usually in trouble soon after they start flying
again.

Dan