Ring-a-ding crankshaft

[Bob Culver]

Thanks Ruairidh

Presumably the crack only forms if the bolt not tight, in which case would expect the bolt to fatigue and fail?
If the white metal is good and the pin bore and thread OK a wee hole just past the detectable end of the crack would do me!
A local Seven enthusiast also has a 1930s six. One rod was split full length. Welded and still OK years after! (Do not try on much smaller Seven parts)