I'm not sure about that switch, newer model J's don't have em, at least ones I've seen on e-bay and other suppliers. Previously, if that vacuum hose came off, it would not run at all. Seems all the vacuum switch does is operate the fuel shut off solenoid, this vacuum switch was mounted on the impco model J, on the bottom, but completely separate from the vaporizer, which appears to be an older model J. With the bypass and the vacuum nipple left open, it did not seem to run as well as with it capped off, that's how it is now.
Coolant lines come in from the side, now I wonder, not that long ago she was overheating, think that may have something to do with it ??? Maybe the boiling over and hot steam is what did the air lock or maybe screwed up those diaphragms inside?, I put a thermostat in, took care of some other related things and back to running normal temperatures, looks like I'll pull that vaporizer off and see what's up in there, she won't start not anyway.
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Today's Featured Article - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership,
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