scratch on crankshaft

Posted by sricks on August 09, 2004 at 09:22:06 from (68.92.41.1):

I have a 6AT3.4 which has a spun rear main bearing. It was a military surplus unit that drove a compressor and generator via belts (180 degrees apart) directly off the flywheel pulley. I assume the loading was not very even and this is what caused the rear bearing and seal to fail. I have pulled several other caps and all the other bearings look fine. Slight scoring on crankshaft. Is it foolish to believe I can polish it out OK, put new bearings in and put the engine back in service. Should I just junk this thing or is it worth resurrecting. New bearings will run about $600 from Cummins.

Thanks for your suggestions.

Scott

Follow Ups:

• Re: scratch on crankshaft TheRealRon 09:48:14 08/09/04 (1)
  • Re: scratch on crankshaft Wayne 20:46:07 08/09/04 (0)

Post a Followup Name: E-Mail: Subject: Comments: Optional Link URL: Link Title: Optional Image URL: Email Notification: If you check this box, email will be sent to you whenever someone replies to this message. Your email address must be entered above to receive notification. This notification will be cancelled automatically after 2 weeks.

TRACTOR PARTS	TRACTOR MANUALS

We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]