Ajs model 31 chain case leaking

[1revinkevin]

I am new to this and to the ajs the bike is a 1959 and has a oil leak from the rear of chain case (where the gearbox goes into chain case ) I’m wondering if anyone can help me out by sending me a spread diagram of the inside of the chain case … just drips non stop when running

Thanks Kev

[Yves.Astein]

Hi Kev,

Welcome to old english motorcycles. This welcoming should also answer your question I have two Matchless and they both leak. There are numerous threads on this topic. For example:

viewtopic.php?t=10626
Or
viewtopic.php?t=649
… just use a search.

There are some gaskets you can purchase. Club spares has them in paper. And I believe Fecked sells them in a bit thicker. I have tried them all including self made ones. None worked for me. My aluminum casing is quite dent. So I guess I would have to mill it down, but I haven't felt like bothering with it.

As you will read in the threads above, there are some people who manage to get them dry. So don’t feel discouraged by me giving up after trying for quite long.

Yves

[1revinkevin]

Thank you so much for a reply I will check oil level so sure !!