[Fot] Faulty Water Temp Gauge?

[William Dewar]

Definitely verify the actual temperature. I have seen many new sending units 
for MGB and TR6 that read high.

Bill DeWar
NJTA
----- Original Message ----- 
From: "MadMarx" <tr4racing at googlemail.com>
To: "'Friends of Triumph'" <FOT at autox.team.net>
Sent: Friday, July 09, 2010 5:31 PM
Subject: Re: [Fot] Faulty Water Temp Gauge?


> Infrared gauges are precise on colored surfaces like a black coated 
> radiator
> or rubber hoses.
> If you try to measure polished metal surfaces you will get much lower
> readings which has something to do with radiation on metal surfaces.
>
> If you would like to measure the thermostat housing put a strap tape on 
> the
> housing, wait a few seconds for the tape to adjust temperature and then
> measure the tape and you'll get the correct temperature.
>
>
> Chris
>
> -----Urspr|ngliche Nachricht-----
> Von: fot-bounces at autox.team.net [mailto:fot-bounces at autox.team.net] Im
> Auftrag von Randall
> Gesendet: Freitag, 9. Juli 2010 23:22
> An: 'Friends of Triumph'
> Betreff: Re: [Fot] Faulty Water Temp Gauge?
>
>> Harbor Freight has their infra red temp sensor
>> on sale at 29.95.    it has a slug of uses including
>> verifying temp gauge accuracy.
>
> But be careful what you try to shoot with it.  I have one, and while it
> works well enough on the radiator tanks, it gives readings that are all 
> over
> the place from the thermostat housing or radiator core.
>
> -- Randall
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