> If the engine temperatures have stabalized in one minute of full power
> running then it is indeed cooling.  But this seems unlikely.  I think I
can
> run at WOT on the ground for 1 full minute (and stay under redlines) but
the
> temps are still climbing.  In three minutes my coolant would be spewing
out
> of the cowl.  Is this a problem?  Not at all.
>
> Tracy
>
My experience parallels, Tracy's.  Depending on OAT, I can run WOT from 1 -
2 minutes during which my temps will be at redline. My normal cruise temps
are 160-180F on coolant and oil.  So the fact that it does not appear to
cool on the ground at WOT may not be significant and I would not worry about
it until I had evidence it does not cool in the air.  I would recommend that
if you are uncertain about it cooling in the air, then have your mind set to
make a 1 circuit of the traffic pattern and set her down.

Now if you are overheating on the ground at idle then you may have a
problem, again depending on OAT.

Ed Anderson