oil pump - 4 ways to wet sump + mods

There are four possible wet sump leakage paths in a Norton oil pump and
lapping the ends only address one.... shaft o-rings address the second.
3rd= gear to gear wear 4th=gear tip to pump body wear

3 o-rings....
2 on the rotating main shaft,
one between the feed and scavenge side gears
and one between the scavenge gear and the drive gear.
The shaft is ground with grooves to sliding o-ring fit tolerances.

1 on the idler shaft between the feed and scavenge side.
This shaft is stationary and the gears turn, therefore, this
shafts is ground with a groove to stationary o-ring fit tolerances.

These groove tolerances are easy enough to find, sorry I don't
have the numbers readily at hand.

Be like me, don't worry about it.
Ride & polish.

Yeah, wet sumping is "another oil thread." Sort of.

hobot ain't a Norton novice no more, I know if oil splashes out open tank and gets warm its good to go. When the leaks stops time to top up again. But there are those who do care and will attempt this and I can't wait to hear about it.