thermostat

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  1. tommyh

    thermostat cover pitting

    I changed my thermostats yesterday.I saw some pitting inside the thermostat cover.Any idea what caused it?It was at the bottom inlet from the water pump. The damage is on the middle left side of the pic I did change the water pump out several years ago. C 15 asert motor
  2. H

    Detroit Series 60 Thermostat question

    I'm planning on replacing my thermostats on my 99 S60 this weekend and was wondering if anyone had any tips on this project or advice.... Also, here are some photos of my new stats, but I can't figure out how they work since they appear to be WIDE OPEN when cold ?!
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