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Old 05-19-2010, 11:24 AM
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m5extc m5extc is offline
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Join Date: Mar 2008
Location: Mountain View, ca
Cobra Make, Engine: SPF2914 Sunset / Titanium
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Did it overheat with the old thermostat in it, or did you replace it after the initial overheat? Whenever an engine overheats, it damage the wax in the thermostat causing it to be erratic and sometimes stick. Anytime we have an overheat for any reason, every car automatically gets a new thermostat. Due to the difficulties in bleeding these cars I do recommend drilling an 1/8" bleed hole toward the top of the thermostat. This helps purge out air.

Andrei
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