I have a 1958 Chevrolet 235 engine, that is in a 1946 Chevrolet 1-½ ton Utility. 6 Volt Starter, 12 volt system. 216 flywheel, 216 starter motor.
My question is, when I go to start the engine with the foot stomp, the starter engages correctly, smooth and turns over for at least 2-4 revolutions. On particular occasions, primarily cold starts, if I adjust the choke, or just let the engine rest, or even on first attempt, the starter-Motor Drive engages the flywheel, but during the crank it releases as if it thinks the engine has started, but it has not. In doing so, the starter-motor continues to rotate until I release my foot from the pedal. It sounds like, ruump, ruump, ruump pak-ching zoom. I think it may be the starter-motor drive mechanism. Dose this sound correct? I checked the flywheel, and it has no missing teeth. I pulled the starter apart, but am unable to see any problems with the drive gears, or clutch mechanism.
Am I on the right track?
Thank you,

Dale