Here is the Thermo switch which goes into the Water Jacket. Found it sprung loose at 220F. Set it to 160F but still ran hot. Now set to 130F and guess i babysit this to see how hot it goes befor shutoff.
Looks like 4"-5" Iron reduces to 2.5" Iron pipe. Don't got wrenches for this type of pipe, and better not ever need them.
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