Quote:
Originally Posted by Texasdoc
Yes, I offset the edges and applied a small drop of RTV to the ends. I plugged hole Y.
If it were the RMS, wouldn't it show signs of leaking when the oil pump was driven? |
No, the
oil drainback in the rear main cap is approx. 0.75" x 0.15" so the small amount of
oil escaping from rear side of the #5 main bearing which is supplied by a ~0.300" dia gallery is not likely to build up pressure. Very rare, but occasionally I have found that drain hole has not been created due to casting faults.
Gaz 64's comment might have some merit as 351c & 351w share same rear seal dimensions, more likely if flywheel bolts have been over-torqued (85 ft/lb). One possibility in regard to this is if someone has used shorter flexplate bolts with a flywheel, lower number of threads engaged in crank with that combo will result in crank flange deformation or thread damage.