Originally Posted by
fietsbob
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 ...
Tap some thread while at it, to be able to close the hole with a screw, once the re-lubing is finished and prevent any dirt from entering. It could also be used to more easily attach a hose attachment.
