18-12-2019, 03:15 PM
I'm surprised if the axial forces generated by the cam gear alone have bent the screw Colin. Are you sure someone hasn't tried to remove the shaft with the screw still in place?
It's important to limit end float here, and while the mod you describe should get you going again you need enough crankcase thread left to anchor the bush firmly in place. Before now I've drilled these holes oversize, plugged, re-drilled and tapped, creating a brand new thread (carefully positioned of course). If not too bad you may be able to open out a size larger instead. But this is a job difficult to do in situ I think.
It's important to limit end float here, and while the mod you describe should get you going again you need enough crankcase thread left to anchor the bush firmly in place. Before now I've drilled these holes oversize, plugged, re-drilled and tapped, creating a brand new thread (carefully positioned of course). If not too bad you may be able to open out a size larger instead. But this is a job difficult to do in situ I think.