Mac Wood wrote: > what are acceptable CHT temps for a Revmaster/VW, .I have a Revmaster > running at the bottom end of the green scale i.e 300 deg f ,and my test > pilot reckons it's too low , and won't fly it !
I recently read in the SkyRanch Engineering Manual something to the effect "if at all possible, try to maintain cruise head temperatures below 300 degrees F for maximum engine life". Just because some manuals call out certain "expected" CHTs doesn't mean you have to be that high! I would make the argument that if it's running that cool, it's either getting too much air (and therefore cooling drag), or maybe the gauge is not quite accurate. Still, I certainly don't think 300F is too cool to worry about. > For some reason I can't post to the KR net directly since I changed to > Hotmail . No clue on that one, although Hotmail is notoriously unreliable... Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net