starter Motor Problems

[Bryan]

Thanks for the info.

I have treid the starter motor on the bench and it works fine. When I have placed it back on the engine it works fine if the two bolts are left a bit loose. In doing this it runs and terns the engine over without any problems.

It is only when I tighten the mounting bolts up that when I try and ingage the starter motor it does not turn.

Should there be a spacer ring or shim between the face of the starter motor and the mounting plate on the sump.

Bryan