Here's a question for the engine gurus of this wonderful forum:
3 years ago at 1663 hours, my C-145-2H was opened for a new cam, bearings, and 6 new Superior cylinders (plus a lot of other system upgrades, etc.) by a local shop with top notch quality work. It has been running flawlessly in the subsequent 90 hours. I just pulled the prop for it's 5 year inspection and this is what I found:
The plane has not flown since November 2023 and first flight this year was 3 weeks ago.During the past 2 hours of flight time a very thin, small streak of oil has appeared on the front face of one prop blade. There does not appear to be any oil on the back of the prop so I'm pretty sure the seal is OK
My question is regarding the Continental Engine IPC. The exploded diagram depicts an O-ring between the plug and retaining ring. This is for the C-145-2H, NOT for the -2 or some of the O-300 variants. This engine now has no visible O-ring, so I'm wondering if the IPC diagram is accurate?? Or maybe I'm reading it wrong.
Does anyone have experience with the C-145-2H crankshaft plug? And leak repair?
Earlier posts on this thread suggest there have been problems with the O-360 crankshaft substitution.
There is no record of such a change in this engine, and I also wonder if there is a way to identify which crankshaft is installed here...
My mechanic says he's investigating but I thought there's probably a lot more expertise in our association.
I'd really appreciate any ideas, experience, advice, etc.
Larry