We had a new O360 installed in our 172 a few years ago (Great Planes
STC). This might be different for an Arrow (CS Prop, no?), but IIRC the
instructions in the manual were pretty clear about running at a fairly
high RPM (something about seating the rings) for 25 or 50 hours (I don't
remember which). It did seem a bit odd to run the engine at 2550 RPM
for extended periods, but that's what we were supposed to do. We now
have 600 hours on the engine. It burns almost no oil and our last
compression checks (this month) were great. Guess we did something
right. In any case, check with the manual and your mechanic.

Frode Berg wrote:
Hi!

We just got the bill for our new engine.....*GASP**
It should be ready and mounted in a few weeks.
It's a 1968' Piper Arrow 180 hp.
Great plane!

Is there anything we should be aware of the first few hours running a newly
installed factory overhauled engine? It's a Lycoming.

Any bad things to look for? Not run it over a speceific RPM or anything like
this?

Thanks,

Frode Berg
LN-LMR




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