Need an A833 expert. I have a mainshaft with pitting on the nose piece. Should it be replaced repaired or is it good as is??

Picture would be helpful, but the shaft sounds like junk to me.

Pic of mainshaft.

I'd replace it. Years ago, I had the main ball bearing in the box fail, and damaged that nose. Some machine shop talked me into "putting a hard sleeve on the nose of the mainshaft, better than new."

Ya, right. NEXT time the "hardened ring" failed, took out the cluster/ pinion and a couple of other things.

That nose has a LOT of stress on it in any gear except 4th. It takes the side load of the gears 1, 2, 3. You won't feel or hear it until it's too late.

Dont scrap it, wish I could find some.
save and put on shelf, sell or repair.

This is fixable.

They way it should be done is to have the pitting ground off and hard chrome plated to build up the diameter and then ground to finish. You'd likely only remove .001 - .002" so no impact on load ability.

Cutting the nose down and sliding on sleeve would take too much stock off the nose and leve you exposed to fatigue stress.

Astrobuf

I'm leaning towards toast but if anyone can fix/save it it would be Brewers or Passon Performance.

If they say they can fix it it would be fixed right.

Actually these people are better at it and it will probably cost you less.


http://www.libertysgears.com/

2nd that.
Weld and turn if dia too small.