I seem to have a constant drip of oil from the rec counter adaptor (68 0585) does this have a seal on/in it?
Regards Jim
should be a fibre washer under the flat washer.
https://www.draganfly.co.uk/index.php/bsa/bsa/a50-a-a65/1964/206-outer-gearbox
The seal is an O ring which fits in a recess on the engine side of the adaptor.
You will find it in the 1968 parts book page 24 item 7 part 68 588. Check your odd O rings you may have one which fits.
First photo shows the adaptor and O ring. Some pattern adaptors have a larger diameter recess than the genuine which can make it hard to find a suitable O ring.
Second photo page 24 from 1968 parts book.
I use silicone between the adaptor and timing cover.
Thanks guys exactly what i needed . Regards Jim