Have a couple of diesel projects this winter so I thought I better get started.
Several years ago I purchased a Kubota G4200 garden tractor. It's a 2 cyl. 12hp. (Z430) diesel of 430cc displacement. I've had a Kubota snow blower for this series of tractor and gave it a try last winter. The little 12hp. engine is definitely short of ponies for this large blower.
I was able to locate a 3 cyl. Kubota (D950) 950cc, 21.5hp. diesel engine for very reasonable so the snow blower is going to have plenty of power this winter. As you can see in the following photo there is a big difference in the size of these two engines which is going to necessitate lengthening the frame 6 inches.
The first thing needing change was the belt pulley adapter that bolts to the flywheel. It needed to have the shoulder machined off of the face, the outside diameter reduced, and new mounting holes drilled and taped into the flywheel and pulley adapter.
Next some material had to be removed from the engines back plate so the engine could set down into the frame rails.
Then the flywheel was replaced along with the pulley adapter. Fortunately the drive shaft adapter on the front of both engines used the same bolt pattern so nothing needed to be done there.
And here is going to be the new home for the D950.