Oil Leaks Ross

jim mosur wrote:


Hi.

Has anyone experienced oil leak at the prop flange of the Ross 2.17

drive,

ifso what was the culprit,  the prop flange pins or the plug in the

end

of

shaft.
I developed a leak returning from the RV flyin at Oswego NY last week

end (2

litres in 3 hrs.), Short of taking the gear box off and pressurizing

it

I'm looking for a quick fix?

Jim Mosur
RV6 13B Rotary
220 hrs.

Hi Jim

    Are you certain that it is the front leaking oil?  Reason I ask - is
when I had a bad oil leak at the rear seal, airflow under the cowl pushed

lot of the oil out the prop end around the spinner.  So initially I

thought

I had a leak in the front seal.  It turned out not to be the case.  The

oil

was actually leaking around the rear seal and I found out that because

the

oil sump was accumulating 2 cycle oil that the level of the oil in the

sump

had risen above my PSRU oil return fitting.  Once I lowered my oil in my
sump then the leak stopped.  I know this sounds too simple but that

turned

out to be the case for me.

When I had the leak I lost approx 1 quart in 30 minutes of flight.  I

think

I know a person who did have a leak from the front oil seal, he is not on
the list, but I'll see if I can get ahold of him.

Ed Anderson


jim mosur wrote:


Hi Ed

I do not see any sign of the back seals  leaking, I have double seals 1
7/16" id. and they are way back near the spline all part of my rear thrust
bearing assy. I am surprised how little oil was present when I took the prop
off, definitly oil present on the back of the blades and a fine mist on the
windscreen but not what I would have expected, a little oil goes a long way!
I was originally thinking a broken side seal on a rotor UGHHHHH. I am going
to attempt to remove the plug from the end of the shaft, I hope the flange
pins do not go thru it. I atleast have another gear box I can install until
I fix this one.

Jim Mosur


 
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