[C320-list] Temperature gauge

[Jeffrey Hare]

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