I'll try postin' again, somethin' iz amiss ..

I worked in an engine remanufacturing plant many years ago. When we had a cam bearing problem, we would push it in 1 bearing at a time til we found the bearing with the high spot. Then pull the cam out and sand the shinny high spot on the bearing with emeery cloth til the cam turned free. Sounded crude back then and still does today as I explain the proceedure, but that's how they had us fixing the problem. They warranteed the engine, so I guess it worked.