Hi Vance how did you build your test bench? I made something that looks like a wooden pallet. The pony sits on one side where I've adapted a flue cap from Home Depot into a recess filled with oil that the idler gear sits into. This keeps the mag gear lubed. On the other side of the pallet is a plastic 5 gal pail that has a couple of coolant lines that plumb to the pony. The fuel tank is mounted on a stand to the side of the motor. It sits on a dolly so I can move it around. I rebuilt the motor a few years ago but haven't really started on the 3J main engine that it's associated with, so it sits in my garage and I occasionally run it to keep it in good shap