Hands down, price it as a runout.

Even if there is zero corrosion, engines have a lot of soft parts,
rubber and cork gaskets and the like that go bad with age alone.
Corrosion is the insidious enemy of engines that sit. It would be better
if the engine were 6 years old and 2000 hours then 30 years and 1100
hours. Unless it was stored in corrosion inhibiting oil for most of
those years, that engine has corrosion.

Lycoming says TBO is 2000hrs or 12yrs, whichever comes first.

Any time you get out of that engine is a bonus.



In article .com,
wrote:

Hey Guys,

I'm looking at at 172 that has 1100 hours since overhaul, holding 73/90
++ on all cylinders...the only thing holding me back, last overhaul was
1976...

I've talked to several seasoned pilots / aircraft owners that say as
long as it's holding good compressions, don't sweat it....

Any opinions?

Thanks,

Jamie A. Landers
PP-ASEL
Looking for a 172