On Sun, 18 Apr 2004 17:26:58 -0600, "Newps"
wrote:


"Peter Duniho" wrote in message
...
"DP" wrote in message
...
[...] Sure enough, it sprayed a small amount of red hydraulic oil
on the prop and on the top cowl.

Odd. I would've assumed a 210 would have a similar prop governor design
to
other piston singles, using engine oil to control the prop.

They do. The guts of the prop use a red colored oil so you know when they
start to leak. All constant speed props do this.


AFAIK, all the McCauley's (oil-filled hubs) use the red oil.
Hartzell's have a "dry" hub, and throw grease. A compact hub Hartzell
throwing engine oil (not red) is rare, but it can happen.

Don't know if anybody else mentioned it, but if you see red oil, you
really oughta get it looked at ASAP.

TC