I discovered today that my numbers matching engine for my 65 GS has turned the second cam bearing from the back. :ball: I am not a happy camper.I am setting here wracking my brain trying to figure out how to salvage the block. o No: The damage is not severe???? just enough to keep the bearing from staying in the bore. I would not trust any kind of epoxy to hold in the internal stresses and heat and chemicals that would be present. I thought about running brass in with my torch. But then how to restore the correct bore???? think, think,think, o No: o No: o No: o No: o No: o No:
How about mic'ing up the bearing and the journal and checking every possible listing at your local engine supply house? The brass would be a messy and very difficult task. I would look into industrial versions of locktite. My pop used to work for a dynomometer building co. that had all sorts of stuff available. Not just your common thread locker. They had hydraulic sealer, locktite for shafts and all sorts of stuff. I would look for locktites web site, I don't know who owns them now, I know the sold out a couple of years ago. I agree the bearing must stay stationary, but there is not THAT much force trying to turn it. You could always cut a half a thousandth off that cam journal to reduce the drag. This could likely be done with emory cloth and a little time.
What I did with BBC or SBC when this happened due to improper fitting of the cam would be to take the next size OD up from the one you turned in that set of bearings. A sharp machinist will be able to bore that particular journal with proper interferance fit for the new bearing. If this is not possible then you will have to see a machinist who knows how to handle a lathe. Have him turn a bearing shell the OD that will allow a clean up of the bearing bore plus interferance fit. Determine the thickness of the steel shell. After this is done, send it to be babbitted. They will be able to apply babbitt, and turn the ID to spec. Do your oil holes after the bearing has been babbitted. This would be a last resort attempt. Get your hands on a Clevite bearing catalog. You most likely will come up with something there. Either having to turn down or add material to the affected journal and boring for the new bearing. Do not try to 'glue' in a new bearing. Do it right and don't worry about it. Good luck Lyman
