Jay Honeck wrote:
Running the engine too slow at startup. Apparently, the cams in some
engines get lubrication mainly from the oil splashing around inside the
case. In some engines, 1000 RPM may not be sufficient for full
lubrication after startup. My A&P suggested 1100 - 1200 RPM.


Isn't that a stitch? Your A&P says 1000 RPM is too *slow* for proper
lubrication. Jim Macklin (and many others) says it may be too *fast* to
run your engine before proper lubrication has occurred. Who is right?

And my A&P says 1000 RPM or slower, primarily to save your prop on loose
rocks but also to ensure long engine life.

Argh. Wouldn't you think there would be SOME science to this?

You'd think so, and maybe there is, but if so it hasn't penetrated the pilot
community. Most of what you read is superstition, collective wisdom, common
sense, anecdotal reports, opinion, experiments run with small sample sizes.
Seems the best you can do is to read all the recommendations and try to do the
things that make sense to you. It's frustrating.

Dave