Background.................
We are building an FE and have been advised to drill holes in the upper shells to align/match the diameter of the
oil feeds in each saddle. This should aide oiling to the mains as the standard shells are groved in a manner that restricts nearly half of the
oil feed hole.
We were advised to use a step drill bit to prevent drill slippage.
After drilling, the bearing material raises slightly on the outside edge and needs to be filed smooth. (not unlike most drilling or sawing on metal surfaces) Filing the inside groove on a main bearing scares me as the tolerances ar so tight.
Question......................
Does anyone know the method to accomplish this?
Or, do we need to take the bearings to a machine shop and let them work their magic?
Any help would be appreciated.
Regards,
John