Posted by ScottyHOMEy on July 17, 2008 at 10:34:41 from (70.105.245.103):
In Reply to: BN temperature guage posted by The Dukester on July 17, 2008 at 09:39:12:
On the SuperC, which did have a temp gauge on a pressurized sytem, the sensor was mounted in the radiator inlet elbow between the head and the radiator hose on the hot side of the thermostat. There was a boss cast into the elbow that was tapped out to thread in the sensor.
A SuperC elbow will NOT fit in a BN. The geometry is all different due to the taller radiator on the SuperC. And I don't think there is sufficient metal in the one on the BN to tap out enough thread for the compression fitting.
If your buddy is intent on having one (and now I'm only guessing) it might be that the elbow from a SuperA with a pressurized system has provision for a temp sensor, but that's only a guess by way of a suggestion of an alternative he might look into. IF there were such a beast that would work, he'd still need to find one.
My thought is that while he's looking for one (again assuming that there is such a thing) that he'll run the tractor as he intends to in the meantime and figure out that he really doesn't need it. Is he planning on working this tractor long and REALLY hard?
Those old thermosiphons are pretty efficient and not easy to overheat. I've run them with the grill off and even well warmed up after runnin' under load a while you can hold your hand quite comfortably to the bottom of the radiator when the top is too hot to touch. The two factors that make that happen are the number and capacity of the tubes in the radiator (he DOES want to make sure they're clean, as well as the rest of the system) and the fan capacity (from a distance you'll hear the fan of a working 113/123 above any noise from a muffled exhaust).
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