"Jay Honeck" wrote in message
news:1tyUc.34503$TI1.2330@attbi_s52...
Intangibles: It may be my imagination, but the prop seems to be cycling
just a tad slower than before during our pre-flight checks. I could be
crazy, though . (Mary didn't sense it, but I find that I am much more "in
tune" with mechanical things than she is...)

Could more oil in the system cause such a thing? It seems illogical, from
what I know about the variable-pitch prop system.

Could it be that the oil is cooler (more to heat up) at the run-up
stage?

Paul