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Old 03-02-2013, 10:13 PM
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Well I guess there is no more takers.

This handy little tool is used to expand the piston skirts so you didn't have to re-bore the block and replace the pistons. Usually it was done by chucking the piston in a lathe and using a knurling tool. New rings and a knurled piston and no piston rattle. I haven't heard of anyone knurling a piston in the last 50 years. This is a hand held unit. I've never seen one before nor heard of such a tool. Knurling made a cheap rebuild.

Bet you all wished you had one in your tool box!


Somebody jump in with a question.
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