How to Smooth Crank Pins
An oval crank pin cannot be made truly circular by using emery cloth; but this process can bo used for smoothing up a pin which has bceomo scored or otherwise damaged. The best way of. doing this is to cut a picco of emery paper the length of the crank pin and wrap it round the pin end. Put a turn of cord round the pin. By pulling alternately on each end of the cord the cloth will rotate round the pin, smoothing out the damaged part.
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https://paperspast.natlib.govt.nz/newspapers/MT19320524.2.20.5
Bibliographic details
Manawatu Times, Volume LV, Issue 6866, 24 May 1932, Page 4
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92How to Smooth Crank Pins Manawatu Times, Volume LV, Issue 6866, 24 May 1932, Page 4
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