Temperature sender

[tegwin]

I am aware that the 2500M temp sender was not standard TR6.. and that it was a vauxhall unit? Does that sound right?

Does anyone know firstly, what car the correct sender came from...


And secondly... what the resistance of the sender SHOULD be at a given temperature?

[Adrian@]

What gauges are you running? Alternator or Dynamo?
Adrian@

[tegwin]

Its an alternator

Guages look like this:

Will go see what the text says on them when I get back to the garage later.

[Adrian@]

The reference to Vauxhall refer to the AC gauges ...and dynamo, you are running Smiths gauges the sender relates to the gauges and that the gauges run on 10 volts via a voltage stabilizer which is an earth dissipation unit, screwed to the rear of the dash. This will if either faulty or not earthing leave you with very high readings. Adrian@
What is the problem?

[tegwin]

Hi.

The water temp sender is broken. It has no continuity through it when measured with an Ohmeter.

I replaced the regulator thinking initially that was the cause of the problem. But it does appear to be a failed temp sender... (If I earth the guage signal wire to the block the guage moves!)

[Adrian@]

There are bullet and lucar versions both 1/8 ntp thread ...does that sound right.
Adrian@

[tegwin]

That sounds about right... the one I have has a spade type connector on it

[80tasmin]

Is this it? This is for the 3 litre, but the 2.5 litre looks much the same.

Edited by 80tasmin on Sunday 3rd May 14:31