Is it possible to cut down a ft cam bearing from a pre 24 to fit on a later cam. I have a new bearing for my 23 and have bought a new cam for a
24 and newer and am hoping to use it.
I don't see a problem. Of course cut from the rear surface so the set screw hole position isn't disturbed. I am assuming the thicker front cam lobe is wider than the recess in the bearing so you are not left with a little bit of notch in the bearing after cutting it down.
I cut the bearing so it fits nice with .002 clearance but now there is no notch in the back.
I assume that the notch is there for oil. Should I now cut a new notch or is this not a problem?
I'm re-building an engine at the moment that has a front cam bearing in it that looks like it was just cut square with a angle grinder, no notch, the owner said the engine was last out some 30 years ago.
Check to be sure it's round. A lot of them aren't.
Video on cam bearing fitting/adjustment:
I pressed it round in a jig and a press then cut it on a lathe. I was worried about getting it oiled without the slot.
The notch is not for oil. It is to allow room for the lifter. None of the later style front bearings came with a notch because the wider first cam lobe already cleared the lifter.
Thanks, now I know.