[Pat/Ohio]

Frank, Does your spare Model B engine have the timing gear cover and timing gear inspection cover on it? If the front of the spare engine is accessible...you could remove the inspection cover to give you an idea of what to expect after it is removed.

One thing leads to another when working on these old engines! You would have to remove the front engine mount anyway in the event that the timing gear teeth are sheared. I wish I still had my Model B engine (roadster) so that I could refer to it and help you better. Regards, Pat