Lateral play can be taken out with shims between the wavy and the bearing.
If the crank arm wobbles the interface fit is toast.
Well, ‘wobble’ is probably a better description of this than ‘play’ I think: It doesn’t feel like an equal gap around the interface (but I’m sure gonna check that!).
Thanks all!
@Howard started
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Lateral play can be taken out with shims between the wavy and the bearing.
If the crank arm wobbles the interface fit is toast.