Oil migrating into the crankcase

Pa
Thanks
F

Folks,

Extreme caution must be applied to burnisher use upon certain pumps.
I have encountered one so hard that it tore up the ball!

Even a cutter would not touch the "chilled" casting, so it had to be ground of the damage, before lapping, and then a final burnish.

I now suggest 60 degree tools instead of a ball.
And I now discourage any application of burnishers upon installed pumps (OHVs).

Liberty is too far in the hole from the previous productions to consider producing any more.

Thanks to every one,

...Cotten

[Pa]

I'm sorry to hear this Cotten. It seems a batch of chilled iron made it through the foundry and into the pump bodies. Chilled iron can be as hard as glass.