Paul,
Thanks for the reply. I finally found a Continental Manual showing that
split seal used on my flanged crank.

But I have noticed lately that my air/oil separator is pushing almost
nothing out the drain hose to atmosphere. ie: lot cleaner than usual belly
G. Now I wonder about that crankcase being pressurized possibility.....The
one item I didn't check for blockage was the 90 degree fitting coming out
the case side.

Sure would rather unblock something than pull that spinner, prop and
baffling G.

Dick


"Tri-Pacer" wrote in message
...
----- blocks a direct visual inspection.

Having heard about leaking crank front oil seals, is the replacement
method a total engine case split or some kind of split ring seal similar
to old chevy small blocks?

There is a split seal for Continentals with flanged crankshafts which
installs without too much trouble.

A few years back I replaced a seal on a C-85 without doing enough
troubleshooting. After replacement, the leak remained. it turned out the
crankcase vent line had been moved and was pressurizing the crankcase.

Cheers:

Paul
N1431A
KPLU