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MG MGB Technical - temp guage strangeness

The temp guage shows cold. The radiator is hot, the heater matrix isn't
blocked, she has a new, tested theromstat, no air
bubbles in system as far as we can tell so I guess
it's the guage.
Suggestions anyone?
Adam.
Adam

Capillary or electric guage?
John
John Simmers

If it's the dual GAUGE it is capilliary, only thing you can do is replace it on an exchange basis.

If the single GAUGE, with the ignition on briefly ground the green/blue wire at the sender in the head. If the GAUGE moves smartly upwards the problem is the sender. If it doesn't it could be the stabilised supply to the GAUGE is missing (test with a voltmeter on the light-green/green), the green/blue between GAUGE and sender is broken (try grounding the green/blue at the GAUGE), or the GAUGE itself is faulty.
Paul Hunt

This thread was discussed on 22/02/2002

MG MGB Technical index

This thread is from the archive. The Live MG MGB Technical BBS is active now.