Friday, February 22, 2013

Polishing the pinion shaft

I needed an extra 0.0004" clearance (that's four ten thousandths for those of you still paying attention) on the pinion side main bearing.  The '47 Chief pinion side race is in a blind hole, and thus hard to hone.  The machinist suggest I polish the pinion shaft to get the right clearance instead.














Another Indian rescue job for the '47 Atlas lathe...  A little crocus cloth and some Scotch Brite, and we're there! A quick test-fit of the pinion side bearings...  Looking good!

Watch this space.  Parts should start going TOGETHER as opposed to coming apart pretty soon here.

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