Bristol 400 Starter Motor

[mlh420]

Good afternoon,

Please excuse me for jumping on this thread. I have recently replaced a faulty Powerlite starter motor with a replacement from Powerlite. However, every now and then, I press the button and hear a horrible grating noise - which I assume is the teeth not being correctly lined up with the ring wheel. Press it again and it's fine.

I am wondering if the new starter motor cog is correctly matched to the ring gear. I have been trying to find out the number of teeth on the 400 ring gear, but cannot seem to find the info. Would anyone have this info please?

Thanks,

Mark