Actualy the concept was used throughout the IH line during the 40’s & 50’s. They made in addition to the farmall M versions, I believe about 40 drawbar HP, equal to the W-6,a W-9, and tracked versions TD-9, and TD 14. They also made stationary versions for pumps and Generators. They were easy to start in cold weather.
Didnt the military have a multi fuel engine that used the same system in the 70’s
barbra ann
Yes, I think you're right.