Originally Posted by
davidad
Drill a hole in the BB body and pump grease into it until clean grease comes out.
Maybe if you followed the full tear down procedure, and while completely apart , then you could drill that hole ,
clean-out all the metal shavings, then re assemble it,
when you do that , then you would not introduce loose metal bits from just drilling the hole, to mix with the grease, and bugger up the bearings ...