Yes, that dohickey at the end of the assembly is a gear oil pump.
I was mistaken earlier when I posted that the generator was a starter too. It is not.
The '24 engine had a regular starter motor that was mounted on the same side as the generator/distributor/oil pump assembly.
Since the back half of this engine is gone, the mount for the original electric starter is gone too.
Another friend, Ed Archer, has a 1924 Chevy one ton truck. His starter engages the gear on the flywheel out in open space, not in a housing that covers the bendix gear, like my '28 engines. According to Ed, the '24 engine is a very different beast that the '26+ engines. Especially since it used a leather cone clutch instead of the standard flat clutch with linings.
Cheers, Dean
