I have a Mallory Unilite that James took out of his boat. It needs a roll pin to hold on the dizzy gear. It was damn near locked up when he gave it to me. I pulled the shaft and cleaned it and the housing now it's fine. The whole thing was clogged with black as tar oil gunk. Looked like someone before James ran it for a long time without changing the oil. I wanted it to have a spare module. If it will help you out you can have it. Could probably use a new cap and rotor.