My 3-rail gearbox has been leaking for years, and I
have not been able to completely eliminate the
problem. It leaves a little puddle of gear oil on my
garage floor.
The engine, on the other had, hardly leaks at all.
I did do one non-obvious fix that reduced the leaking:
I replaced the O-ring s
You didn't say which gearbox you have, but the single rails
will leak from the rear seal. You have to pull the driveshaft
and transmission cover to get at it, but the transmission
can be left in place. Not too bad of a job and eliminated
most of my leak which was also landing right on the exhaust
The most likely place is the front seal leaking down into the bell housing
and running out the bottom and being blown onto the pipe. Of course, it
might not be gear oil at all but the rear main seal of the engine leaking
oil out into the bell housing where it is blown onto the pipe.
Joe
-Ori
My Spitfire's supposedly rebuilt gearbox drips oil onto the exhaust
pipe. It's embarrasing, really. Visual inspection shows oil all
over the outside, a classic case of external lubrication. I'm
guessing that, appearances notwithstanding, it isn't really leaking
through the metal casing nor e
