Thermostats

Those Oddball Thermostats

Shown below are the two sizes of thermostats commonly used in Chrysler marine engines. The large 'T-stat' on the right was used in the earlier engines (and cars/ trucks in the late '70s). The smaller 'T-stat' (on the left) has been epoxied and riveted to a stainless steel plate for use in the earlier engine. Why go to all that trouble? Those large, custom t-stats is shockingly expensive, and if the t-stat housing is rusted badly (around the t-stat, as often the case in old, RWCooled engines) water will pass the t-stat to delay warm up and proper temperature control.