Would a Needle Roller cope with a modified belt driven Cam ?
Last week, I helped with a Full Race 1300 mid-season strip and rebuild.
The first surprise was lack of oil under the Rocker Cover, followed later by the realisation that the Cam had picked up the front bearing and rotated it in the block.
Something at sometime has left the oil passage and lodged in the lubricating groove in the Cam before digging into the bearing, ruining both, but looking at the lobes, the cam would have needed replacing.anyway.
Because the block will be recovered by bushing and line boring, it is an opportunity to use an alternative bearing, or would it be, like steel springs, an impairment ?