The mandrel you made is the heart of the successful repair. It enabled you to do two different operations as needed without slipping and ruining the ID of the bearing. That's impressive. Also, it was rigid enough to turn the OD of the bearing with a cutter, rather than grinding. And knurling was a good second choice option in a real pinch.
Having .010" oversize bearings is a really nice insurance policy for us Pontiac engine lovers. Last chance for some of the engine builders out there to chime in if your willing to stock a set or two of the OS cam bearings. I will wait another week and call Durabond to try and force them into production. So let the forum know if interested and how many sets you would want. Just my best guess, thinking they will be $50.00-55.00 a set. This is based on when Butler last had them a few years ago.
Impressive repair.
|