Anderson Ed wrote:

I like most others have experienced Ross oil leaks around the seal.  I
replace the original seal (one with a spring around it) with a double
lip one.  Additionally, the Ross oil pan I used had the oil return
fitting above the level of the PSRU, I recommend installing the return
fitting as low on your pan as possible. I still had oil leaks.  Part of
my problem was that my oil pan itself was not vented except thru the
center of the intermediate housing.  At high rpm blow-by gas would
pressurize the oil pan and I believe hinder oil from flowing from the
PSRU, pressurize the PSRU and forced oil past the seal. Once I vented
the oil pan I have had no more oil leaks from the PSRU.

Ed Anderson

 
The Aircraft Rotary Engine Newsletter.              Powered by Linux.

http://home.earthlink.net/~rotaryeng/            http://www.linux.org