Here are a couple photos of one I owned. Note the fuel pump has been blanked off
and an electric pump with a pressure regulator has been added. The starter appears
to be a standard starter with a solenoid somewhere, just don't see it. Must be mounted on the back of the firewall near the oil bath air filter. This one also
has an alternator to replace the generator. I believe they were 12 volt. The ignition parts are the same as or similar to an English car of that era. The radiators
have fins closer together to get rid of more heat than a diesel, yet they also have
shutters for cold weather warm up. I think this one is more or less original, but
can't guarantee it. Upon investigation, I found the hub was broken out of the camshaft
gear. How this weakness made it to production is hard to imagine. The manuals show that
it was a persistent problem that was dealt with by various fixes. The gear from a diesel
looks interchangeable with a thicker web, but the thickness has to be machined off the gear wheel rim to fit behind the original cam gear cover.
All in all, the engine looks like a Model A Ford engine treated to all the updates, such as
oil pressure, overhead valves, and counterbalanced crankshaft, with 5 mains. The gas engine is 200 cu inch, as was the Model A. [But slightly different bore and stroke] It produces
about 10 more horsepower, and is quite a bit heavier.
Your tractor is different from my 1953 because it has wheels carried over from the E27N. The hood sides should just say Fordson Major, no mention of Diesel. [Mine were missing]
These early models also have a reveal that follows the arc of the fenders. Not on later versions. The mountings down by the axles are weak and could be broken from rust and
vibration. The seat spring is a rubber bumper, like a Dagmar off of a Cadillac.