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Water temp gauge heat soaking

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Old Jan 6, 2018 | 02:18 PM
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Default Water temp gauge heat soaking

I installed a glowshift water temp gauge. put the sensor on the passenger head (where the plug usually goes)

after a couple minutes of idling, the gauge was reading like 280 degrees. the factory gauge was reading just above 120. was able to verify this with an infrared thermometer on the heads (and by touching them)

my only thought is that the sensor is heat soaking from the proximity to the header. anyone ever see this? if so, what's a good fix? foil tape?
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Old Jan 9, 2018 | 11:27 AM
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Might be the trouble, but a simple test would be to isolate the space between the two, as you’ve indicated.
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Old Jan 9, 2018 | 12:36 PM
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From: Turnin' Wrenches Infractions: 005
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air pocket. Very common.
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Old Jan 14, 2018 | 12:58 PM
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Originally Posted by 01ssreda4
air pocket. Very common.
Actually, I think it's just an issue with the glowshit gauges (or the sending unit) cause every time I turn ignition on, it pegs itself at 300, even with the motor off lol
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Old Jan 14, 2018 | 04:57 PM
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Wow weird. Yeah i got away from glowshift due to seeing not accurate readings from their oil psi stuff. I stick with autometer now.
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Old Jan 17, 2018 | 03:08 AM
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Originally Posted by 01ssreda4
Wow weird. Yeah i got away from glowshift due to seeing not accurate readings from their oil psi stuff. I stick with autometer now.
i put them in cause I wanted gauges more accurate than the factory, but didn't have the coin at the time for autometer (or other brands).

The oil pres. gauge I has seems to be pretty accurate. I would say it reads maybe 1-2 psi lower than what I'm seeing from the factory gauge, so it's either off a little bit, or the factory one is lol.
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