I spent time on the platform of that tractor numerous times when I was a kid. My grandfather and great uncles were friends of the owner back then. The owner (back then) also had a Russell steam engine which he stored at my great uncle's farm, which was about a mile away from the showgrounds. Year after year, the Russell was fired at my great uncle's farm and then driven to the showgrounds. Both the Pioneer and the Russell were regulars at the local show. Both are surely missed.
So, Ironman, little did I suspect you know that machine!.......
A peek inside the crankcase revealed a couple interesting features.
One is the crankshaft is drilled for pressure lubrication to the mains and rods.
The cylinders are oiled by a mechanical lubricator.
However the engine and transmission share same the oil compartment...... .......then again so do Model T's......
Here is a picture of it at the local show in 1973. Had to do a bit of digging to find it. I might have more pictures of it, provided they weren't among the photos that I lost when my home flooded in the summer of 2010.
Wendel's Catalog of Farm Tractors shows the 18-36 having a horizontally opposed four with 5 1/2" x 6" bore and stroke and weighed 6000 lbs. It was produced in 1919 and remained in production until the end of operations in 1927.
While we're discussing Pioneer, I'm aware of a few examples of the 30, but are there any of the six cylinder Pioneer 45-90 models still in existence?
Are there any actual pictures or even a catolg pic of a 45? It would be fun to see one. Someplace it says 9' rear wheels. The one pic that is referenced from time to time as a 45 I think is really a 30. I would think a 45 would be noticeably different since it would be 18 to 24" wider.