Had an interesting thing happen on a
flight from AZ to
So Calif. Cruising at 14500ft had
been in cruise about
40 min. was running 2600RPM 31"
18GPH about
75 deg. LOP. The temp on #1 cylinder
went from 315
to 500 oil pressure dropped to 15
oil temp went from
178 to 197. I went full rich reduced
power to 17" and
went to nearest airport to
land, this action brought
temps back into normal as well as
oil pressure to 38.
On the ground I removed the top cowl
to be sure there
where no oil leaks and found non.
Refowled plane
took off and did some laps in the
pattern everything
normal started home and at 8500 ft
and 30 minutes later
same thing CHT 425 oil pressure 21
oil temp 174. I had been flying at 2500/22". I reduced power again and
temps
came back down, I continued home. I
since have removed
the cylinder and have had it
inspected by 2 competent
mechanics and no damage. The engine
has 260hr.s, does
anyone have any ideas as to the
problem?. Your thoughts
and ideas would be appreciated
Art