Stratton Jimmer Posted July 23, 2021 Report Share Posted July 23, 2021 My temperature gauge suddenly stopped working. The sender unit looked ok so I had a look at the gauge end. I expected the gauge which is a Caerbont GD1301-62C072 to have a spade terminal for a 10 volt supply but it hasn't got one. The green wire with 10 v on is present but disconnected and there is nowhere for it to connect to. Can anyone explain to me how the gauge could possibly work with this scenario? Link to comment Share on other sites More sharing options...
Stratton Jimmer Posted July 23, 2021 Author Report Share Posted July 23, 2021 Is it possible that the "connector" is a bourdon tube? Link to comment Share on other sites More sharing options...
68vitesse Posted July 23, 2021 Report Share Posted July 23, 2021 Appears both parts of the gauge are mechanical, the temperature tube usually contains ether, has any part been damaged to let it leak out?. Regards Paul Link to comment Share on other sites More sharing options...
Stratton Jimmer Posted July 23, 2021 Author Report Share Posted July 23, 2021 Having had a closer look with my specs on, it does seem to be a bourdon tube (I thought they went out with the Arc). It's possible that the tube has been damaged although a close inspection doesn't show any visible sign of damage. Supposing (and I have no reason to doubt you) that your summation is correct, any ideas how to go about proving it and I wonder then what the fix would be? If the pipe is sealed to both the sender and the gauge, is it then necessary to replace the whole system? Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 23, 2021 Report Share Posted July 23, 2021 places like speedy cables or JDO i elive can repair leaky tubes both worth a call https://speedycables.com/instruments/gauge-repairs-conversions/ or http://www.jdo1.com/ Link to comment Share on other sites More sharing options...
68vitesse Posted July 23, 2021 Report Share Posted July 23, 2021 Never used mechanical gauges, electric seemed easier, any suggestions etc. would just be the result of a google search. Regards Paul. Link to comment Share on other sites More sharing options...
mark powell Posted July 23, 2021 Report Share Posted July 23, 2021 Speedy cables mended one of mine a few years ago. Still working OK. Link to comment Share on other sites More sharing options...
ahebron Posted July 24, 2021 Report Share Posted July 24, 2021 Silly question but you have checked the level of coolant? Temp gauges do not always work when they are not in liquid. My Spitfire had that problem once I would stick the bulb in a boiling kettle to double check it. Adrian Link to comment Share on other sites More sharing options...
Stratton Jimmer Posted July 25, 2021 Author Report Share Posted July 25, 2021 Thanks for all of the suggestions. I will test the system as outlined by Adrian and if it is found to have failed due to a leak will follow Pete's advice and give Speedy Cables a go. You lot are worth a hundred Haynes manuals! Link to comment Share on other sites More sharing options...
ahebron Posted August 5, 2021 Report Share Posted August 5, 2021 Hi Stratton Jimmer Any news on the gauge? Adrian Link to comment Share on other sites More sharing options...
ahebron Posted August 30, 2021 Report Share Posted August 30, 2021 Reading the post about 1200 temp gauge senders reminded me of this one. Any news? Link to comment Share on other sites More sharing options...
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