[C320-list] Temperature gauge

[Pat Moriarty]

Since it is a single wire it is a measure of voltage drop. The lead 
to the sensor will have voltage and if you quickly short it to ground 
or drop it across a meter you should get some gauge movement if not 
check the gauge.

Pat

#130

At 01:29 PM 4/4/2007, you wrote:
>Most likely, the temp sensor unit on the engine has stopped working.   The
>temp sensor is usually a small sender that screws into either the block or
>some fitting inline in the cooling water system.  It typically has a single
>wire connected to it.
>
>You can test the gauge itself quite simply though.  Offhand, I don't recall
>precisely which terminal to short out on the back of the gauge, but the guys
>at Seaward should be able to tell you over the phone.
>
>-Jeff
>
>-----Original Message-----
>From: RUTHE SMALL [mailto:sailmiss at msn.com]
>Sent: Wednesday, April 04, 2007 12:14 PM
>To: 'C320-List'
>Subject: [C320-list] Temperature gauge
>
>The temperature gauge on my 320 (#74) doesn't seem to be working.  (it
>recently stopped).  I haven't found any loose wires.  What else should I be
>checking?
>
>I am about to change the big hose on the freshwater radiator on my Perkins
>engine.  I know I need to drain the system to do this.  When I refill the
>radiator, is it necessary to clear any air locks?
>
>Sam Wagner
>RUTHSM #74

Pat Moriarty
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