Hey jack, thanks for the reply.
I did find an photo from an old Austral Villiers Rebuild thread on here that had a few photos of it apart but i just couldnt see enough on them to see how it goes together. I may just leave it for now as it does work so might be best not to fix it! I am looking forward to having a new coil on the villiers midget as she ran a it rough for a while before the coil completely gave it in!
Cheers
Scotty