Close examination of my stripped 'A' Comet Special cases reveals a crack along the top of the large idler boss disappearing into the oil-hole. It will be a real pain trying to get down inside there with any kind of welding torch, so I guess my other options are:
1. Just leave it alone on the basis it has probably stress-relieved itself - and hope it doesn't cause a blow-up in due course.
2. Bore the boss out and fit a thick bronze top-hat bush (but that might get tricky trying to maintain correct timing gear meshing...).
Has anyone else encountered this problem, if so, how did they fix it?
Peter
1. Just leave it alone on the basis it has probably stress-relieved itself - and hope it doesn't cause a blow-up in due course.
2. Bore the boss out and fit a thick bronze top-hat bush (but that might get tricky trying to maintain correct timing gear meshing...).
Has anyone else encountered this problem, if so, how did they fix it?
Peter