REFLECTOR: Ground Engine Run-up

[Eung Tai Kim <eungkim@kari.re.kr>]

I'm going to install Lycoming IO-360 to my 173 this year.
This engine is newly overhauled.

The operating manual says : 'Ground run it for an hour or so at low to
medium power.'

I think I need to run the engine to the full power before taxing.
Don't I need to?

May I try to run it at max. power on the ground for a short time watching
the CHT/EGT?
If I turn on the large fan in an effort to cool the engine, would it help
even a little?

Any comments and experiences please.
Thank you very much.

Eung Tai Kim
South Korea
173 FGE