On Sep 28, 8:43*pm, Fred wrote:
Find a mechanic who knows how to replace the seals -- simple things
like bathing the seal in warm oil for 10 minutes before putting it on
will save you a lot of headaches. *I had a problem with oil on the
windscreen and had the oil seal replaced twice, once with a special
oversize seal, before I found another mechanic who was a good
detective. *Using spray-on chalk he discovered the leak was not the
seal, it was the accessory cover where the prop governor would go on a
constant speed installation. *The cover itself (about 2" X 3") was
warped and when it warmed up it would leak. *since this was above the
cooling baffles the pressure blew the oil forward onto the pulley,
then threw it out as if it was coming out of the crankshaft seal. *We
couldn't find a replacement accessory cover in a hurry, so the
mechanic put it back on with a bunch of hi-temp sealant.

I tow out of Minden, 4700' MSL, so exceeding red line was not a
problem. *I always wait for the oil temp to get into the yellow or
green before applying full power, even to check mags.

Hope this helps.

Fred

We have also had a warped cover were the governor would be with or
fixed pitch prop. Our mech had another cover and gasket in stock. Lots
of oil from there.

T