Jim
I think you can find all that information on Tigersunited.com under
Tech Tips.
The first thing I would do is make sure all the green wires from the
instrument voltage regulator to the gages are in good shape. It is always
difficult to accurately check gages because you never really know how good
the other gage your checking with is.
I took the temp sender out and checked it with a voltmeter while warming it
up in a pot of water on the stove. I think I made a graph of resistance
heating up and cooling down. I also used a thermocouple on the block to
check it in the engine. My gage reads a little low and I left it that way
because I know that the engine is around 180 degrees at that point on the
gage.
Ron Fraser
-----Original Message-----
From: tigers-bounces@autox.team.net [mailto:tigers-bounces@autox.team.net]
On Behalf Of James Lindner
Sent: Tuesday, March 29, 2011 7:00 PM
To: tigers@autox.team.net
Subject: [Tigers] Temp Gauge Accuracy
Hi All,
My Mk1 is back in the garage after a long winter's rest and some work to
address body panel issues. One of the things I wanted to do after reading a
thread from a few months back, was to check the accuracy of my gauge using a
laser thermometer.
Well I did that today and to say it was off is an understatement. After
idling for 30-45 minutes the temp at the radiator and thermostat was
185...unfortunately my gauge was reading only about 150-155 (needle about
half way between 120 & 170.)
Since I did not save that thread...can somebody give me a rundown on the
best way to get my gauge in sync. Hopefully, it will be within my technical
capbilities.
Thanks,
Jim
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