Posted by Bob on 1/12/2008, 5:28 pm, in reply to "Thanks, got it!"
74.74.77.70
I ran into the same thing when I replaced the rear oil seal in my 170. I solved the pointy thing problem by filing a groove into the neoprene oil seal so that it would not interfere with the metal point. But when I tried to fit the neoprene oil seal in place, it seemed that it did not fully contact the flange on the crankshaft, which would have resulted in a leak. I removed it and replaced it with a rope seal and the rope seal doesn't seem to be leaking after two years of operation.
One thing I DID learn when doing the seal replacement was that you need to first install the seal in place and torque the rear main cap to crush the seal against the crank and get it into its proper shape. Then remove the cap, remove the crank, and THEN apply some oil to the seal to lubricate it. Then put it all back together again. If you just install the seal, oil it, and torque down the cap, it will bind up something fierce and you can hardly turn the crank at all. The Falcon shop manual shows the rope seal being initially formed to shape with a special tool, but how many of us have one of them...???
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