BMW motorcycle gearbox end cover resleeve

This video shows a method of aligning a sleeve with the bearing pocket on the underside. In the video I show how i aligned the cover to bore the hole to take a sleeve. This was accurate enough to fit the sleeve but not accurate enough for the final bore, which must be in perfect alignment with the bearing on the underside. To achieve this alignment I made a dummy bearing which was clamped to the mill table, with two screws and tee nuts but not shown in the video, and centred with co-ax indicator. The cover was clamped over the dummy and then the sleeve was bored to final size for the clutch release plunger. By use of the dummy bearing morethan one cover could be bored with minimal set up time.

[@ChrisB257]

Hi Chris - looks good - I'm on to watch the other short clips you've put up.