<VV> Leak from Base of FC Oil Fill Tube

[Mikeamauro at aol.com]

I've noticed a leak source with the wife's Greenbrier where the oil  fill 
tube enters the engine block. It's not a huge leak, but annoying enough to  want 
to fix (so I won't have to listen to the wife say, every other  day: " I guess 
we're never going to have an oil-free driveway."    The assembly manual 
clearly shows an o-ring for the base of the tube (GM PN:  3777504), and Clark's 
lists a viton replacement. I cannot remember what o-ring I  used when rebuilding 
years ago; but, apparently, whatever I used has given up.  Having identified 
the issue, can the tube be removed and reinstalled with the  engine in the 
vehicle? If so, can someone who has performed  this operation please advise best 
method.
 
Thank you,
Mike Mauro
64, 110, PG, Greenbrier Deluxe 
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