I've discovered a tiny little crack about a couple millimeters long right at the bottom of the piston. Do I need to repair this or can this be ignored ?
RE: piston fracture
This is your NEW piston?
If you did nothing wrong they might give you a new one.
I'm sorry.. but you need to replace it.. small cracks become big cracks.. big cracks turn 1 piece into 2 pieces.. extra piece bounces around inside 7000 RPM motor and gets jammed in bad spot causing more parts to be destroyed.
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