Re: 1938 Super 8 thermostat

Posted by HH56 On 2023/7/30 11:54:21

I am kind of curious where the cylinder head thermostat goes. There is a 162 degree thermostat #234941 mentioned in the service manual that can be used in cars with hot water heaters in conjunction with the 150 degree shutter unit but no views showing it. The cyl head thermostat is recommended to be removed in warm weather. For what its worth, the only thermostats I see listed in the Super 8 and Twelve parts book that was just added to the archive a few days ago is shutter, automatic choke, and heat riser. The number given in the SM for a cylinder head thermostat does not appear in the numerical index.

On the engine cutaway there does not appear to be a thermostat. Nothing in the head and I only see the water outlet with no extra view showing any internal items such as a thermostat or retaining ring as was done for other engines. In a view from the SM, with the way the outlet is drawn showing sort of a gap space at the bolting area there does appear a possibility a thermostat could go between the outlet bottom flange and the head. If that is the case I would think you could measure the diameter and pick up a 160 degree capsule type thermostat having a flange measurement that would fit in the gap area.

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