A 10

[tdc]

Looks as if the drive side crankcase oil seal needs replacing. end feed crank fitted  any tips ? thanks

[Bess]

Hi,
      Maybe worth a read, the A10 is similar to the A65:

https://www.bsaownersclub.co.uk/bsaoc_forum/index.php?topic=8233.msg40649#msg40649

Best wishes...

[idie]

You usually find that the oil seal has a couple of centre pots around it to help hold it in place.  I usually find that a large screw driver will hook them out. Tap the new one in. If you have a large diameter piece of tube so much the better for knocking it in.

[Allan G]

Check the wear of the spacer which the seal runs on. It should be fine but a bit of metal polish won't go a miss, any deterioration to it whether it be pitting or bits of stuck rubber will destroy the new seal.