Hi Kevin,

The water cooled heads just don't have the peak thermal surges that air
cooled do. Consequently exhaust valve burning and loose seats don't happen.
I have an '86 Syncro with a 4 digital gauge panel, two of which monitor
coolant and engine oil temp. I also installed a 3rd coolant sensor that
reports the temperature of the coolant returning from the radiator over a
simple toggle switch. This arrangement allows me to see the engine operating
temp and how "thermally loaded" the cooling system is.

Someone else on the list promotes a clever method of monitoring cooling
system pressure(or catastropic pressure loss). Forget about cyl head temp on
a WBX, look for fluid temps and/or pressure loss!

Regards,      John

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