Re: Gear case lapping question

[collectorinspector]

You should not be using "Sand Paper".

You use the water proof Hermes or similar brand wet rubbing carbon type….like on paintwork before buffing.

Wet and Dry it is called down here.

Use a sharpie and color the surfaces. Give a brief figure of 8 to each. Any sharpie color left indicates low spots. Compare the relevent positions of same both halves.

Post a pic or two for better answers.

B