Sort of a take off of the steam tractor design where the exhaust was vented through the stack to increase the draft on the fire. One good thing, they did not loose any HP running a big fan that way. Was the water flow gravity fed or did they pump it on those?Originally posted by bear
the radiators are that size because they double as the exhaust.the exhaust is forced up through the rad to create draft and cool it.
I did not know that. That leads to another question. Were they cooling the crankcase oil? Or did they have individual bearing oilers and the oil in the radiator was circulated from ports around the cylinder? It seems like I remember an old Hart-parr or Rumely at the local show a few years ago had a rectangular box in front of the driver that contained oil that was fed (I think) to the bearings through copper tubing. There was like a window on the top of the box and you could see the oil dripping into the sections of the box. I wish I had a picture to post. Does this sound like anything you've seen?Originally posted by bear
there is a pump. both hart -parr and rumely used oil in the radiators it kept the operating temperature higher and allowed them to burn lower grade fuels