rust on pinion shaft bearing surface

keats · Post by **keats** » Sun Dec 04, 2011 5:35 pm

I have a NOS ring and pinion set and the pinion has rust damage from poor storage. Is this pinion OK to use? Can it be cleaned, or needs repair, , or is it garbage?? I tend to think the bearings are pressed on so it may not be a big factor but I don't know.

http://willysmjeeps.com/v2/modules/gall ... .sized.jpg

Post by **wesk** » Sun Dec 04, 2011 6:39 pm

Depends on the seriousness of the pitting. Large pits can lead to stress risers that lead to early failure. If they are quite small I would bead blast the pitted area and then prime it with a Glyptal type primer and use it. Larger pits could have their rough edges smoothed out and the same Glyptal type primer. A lot will also depend on how hard you intend to run the gears.