Which engine do you have and what starter are you using? I suspect your engine in the Alligator should be a post-war British engine, such as a Ford Pilot or Thames Trader has. These engines have a 144 tooth ring gear on the flywheel and use the smaller drive gear on the starter. A CMP or Carrier engine will have a 112 tooth ring gear. If somewhere in the mists of time any of these components have been changed, then you could anticipate things locking up when bolting them up tight, or cranking over the engine.
Do you have an inspection cover on the bellhousing that you could shine a torch into to see what's happening when you engage the starter?
Is the engine free to turn over? Can you rotate the crankshaft freely from the front pulley end?
Some pics would help ID things.
|