Ray Andraka wrote:
Dave wrote:

I would only replace a prop if it suffered damage or failed to meet
the specifications. The prop on my plane (C-182) was overhauled in
1980 and again in 1996 - my mechanic recommended it due to "Time in
Service" - meaning calendar years since last O/H. The prop shop said
it was in better shape than most of the ones they see. This prop, also
a McCauley, has been basically trouble free.

An overhaul is a lot less expensive than replacement. If that would
buy you peace of mind, go for it!

David Johnson



Jay's prop is a constant speed prop, which means it is the internal
stuff (wear and corrosion) he's got to worry about. If allowed to go
too far, it could mean a small problem becomes an unrepairable prop.
Also, internal corrosion can lead to a blade separation. Jay, the prop
manufacturers state a 5 or 6 year TBO. You are 3x that. I think it is
time.

Props should last a good long time. Time doesn't hurt metal.
I've got a 50 year old prop on my bonanza and it is still well within
specifications and most of all safe.
I'd hate to say it, but overhauling a propeller is one of the worst
things to do for the longevity of a prop.
It's best to have it serviced at timely intervals.
Every time a prop is overhauled the blades are re-profiled and become
smaller until they won't meet specifications. Prop shops love this since
they will soon sell you new blades.
If you get the prop serviced, only the components that need attention
will get attended to. Generally this is just a clean and an inspection
and maybe just a dressing of the blades.