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Old 12-17-2020, 01:59 PM   #33
JSeery
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Join Date: Nov 2012
Location: Wichita KS
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Default Re: Flathead running cold

Some thermostats have that provision (an air bleed hole) with a little jiggle pin that closes the hole when not needed. First thing I would recommend is to always check any thermostat before you install it (them). Put it in a pan of water and check the opening temperature. It is not that uncommon to find thermostats that are off or totally not functioning.
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