Hello all,
The rear cylinder head on my Series C Black Shadow has developed a crack at the exhaust valve guide bore. The bore is also belled out, measuring .566 x .585" at the inner end. This was likely caused by the piston having broken apart, with the separated crown hitting and bending the valve.
What's the best way to deal with this unpleasantness?
Thanks,
Dave
The rear cylinder head on my Series C Black Shadow has developed a crack at the exhaust valve guide bore. The bore is also belled out, measuring .566 x .585" at the inner end. This was likely caused by the piston having broken apart, with the separated crown hitting and bending the valve.
What's the best way to deal with this unpleasantness?
Thanks,
Dave