Hi Tim,
Your temperature gauge is actually filled with ether and the capillary
cannot be removed from the gauge. If the gauge does not move with the
bulb in boiling water I would suspect that the capillary is cracked and
some or all of the ether has been lost. You will need to send the gauge
to a competent instrument rebuilder for repair.
To remove the gauge from the car you have to remove the bulb from the
radiator or head, taking great care not to damage the capillary tube,
then release the gauge clamp and pull the gauge and the entire capillary
tube out through the hole in the dash
Michael Salter
www.precisionsportscar.com
-----Original Message-----
From: owner-healeys@autox.team.net [mailto:owner-healeys@autox.team.net]
On Behalf Of Tim Newton
Sent: Sunday, April 25, 2004 5:32 PM
To: healeys@autox.team.net
Subject: water temp gauge faulty
Dear All
The Jaerger gauge in my MG TC does not read and I would appreciate some
help.
It is the same as my healey, a mercury filled capillary tube from the
radiator
into the rear of the gauge. The questions I have are:
1. would you immediately assume that the gauge is at fault or could it
be the
temp. sensor at the radiator or the capillary tube be the problem?
2. I cant see how the capillary tube which enters the rear of the gauge
is
removed in order to remove the gauge for inspection or testing. I
thought that
removing the 3 small screws on the outside of the gauge would allow the
tube
to just slip out, however all that appears to happen is that the
internals
move around inside the casing and the tube remains somehow fixed inside.
Any advice or a link to a web page would be great
Thanks
Tim Newton
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