Firstly, what are we talking about here? Standard square taper BB or some modern hollow type of BB?
Assuming the former, is the crank bolt damaged? Is the BB thread damaged? Is it done up to the correct torque? Have you tried using threadlock?
@yoav started
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Firstly, what are we talking about here? Standard square taper BB or some modern hollow type of BB?
Assuming the former, is the crank bolt damaged? Is the BB thread damaged? Is it done up to the correct torque? Have you tried using threadlock?