Re: Checking radiator for overheating problem with 1956 Thunderbird
It seems quite normal to me. Especially since the old gauges can be inaccurate & tend to read high.
The handheld infrared temp gun will confirm the readings you're getting. 180* to 200* on the thermostat housing is normal. Photo 3
If it isn't spitting out coolant it isn't overheating. Coolant level should be an inch or so below the filler neck when cold, to allow for expansion.
When installing head gaskets one of them should look upside down compared to the other, it's the way they're made. The matching squared off corners of both gaskets should peek out from the upper front corner of the heads when they're installed correctly. Photo 1
A short metal tube should be soldered into the radiator filler neck, with a flexible tube on it, leading off to the bottom corner of the radiator (photo 2) or an overflow bottle.
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Last edited by dmsfrr; 10-21-2021 at 01:58 PM.
Reason: add photo
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