Running cool? maybe its just me?

[sparky2263]

The thermostat should be replaced only after the following tests have been performed:


Heat Test 89°C (192°F) Thermostat Immerse the removed thermostat in a 89°C (192°F) solution of antifreeze and water mixture. An 89°C (192°F) thermostat should open to 0.08 mm (0.0003 inch) . When immersed in a 100°C (212°F) solution, the thermostat should open to 3.2 mm (1/8 inch) . 92°C (197°F) Thermostat A 92°C (197°F) thermostat immersed in a 92°C (197°F) solution of antifreeze and water should open to O.O8 mm (0.0003 inch) , when immersed in the 100°C (212°F) solution, the thermostat should open 3.2 mm (1/8 inch) .
Visual Test
If heat is not available, the thermostat should be checked for leakage. This is done by holding the thermostat up to a lighted background. Leakage of light around the thermostat valve (thermostat at room temperature) indicates that the thermostat should be replaced with an original equipment, approved thermostat. Some thermostats have a small leakage notch at one location on the perimeter of the thermostat valve which is considered normal.

 

[sparky2263]

The above is straight outta' the book. Note the instruction on using light to check for leakage. If ANY light is seen, prolonged warm ups are inevitable.

 

[Creager]

Haha, that’s awesome. I’m going to try the light test on the two thermostats I have sitting in the garage (Stant, Motorcraft) when I get back to the house...

This is cool, ill try getting the SuperStat tomorrow, I might post pics of all three brands side by side so everyone can see a comparison.

Sparky man, you have been an extremely resourceful postee since you have started coming to this board. Thanks for all your input.

 

[Rhett]

"Postee". haha!