Hi mates
Managed to tighten the slipping belt OK w/o stripping , but the Dynamo only worked intermitently, so I took it it off and had a look at it,, everything was near new apart from the casing ,, the armature segments had solid carbon buildup all around them, then I could see it wasn't undercut , so I think that was the trouble, have undercut it and now it works fine ( think the undercut stops the build up of carbon that can short it out) , Another thing the Vee belt drive pulley (engine end) had about 2 mm end float , would that be a problem? thanks for your advice in advance
Regards Barry