Originally Posted by ChevroletSS
Hey guys I started taking my 350 roller apart and wanted to get your alls opinion on these main bearings. Do they look normal for having 150,000 miles on them?? Why do they get copper colored??
When ever you see brass on bearings like that means they are worn out and the zinc coating is gone. I am very old school, term, worn to the brass means done for the day,You need to check your cranshaft, road beaing caps, If the carnkshaft is out of round you'll need to get it fixed by a good machine shop along with the connecting rods. Youll need to plastic gauge all the beaings to do the job properly.Anyone who says those are ok berings don't get it.
When the dude said he took off the outter coating on the bearings just made them lose and will sooner than later cause damage. Good luck and watch what people put on sites.Check and double check information.Master Tech. Ron