[C320-list] M30 Floating Gnd on Temp Sender?

[Christian]

"Are there separate senders
for temp gauge and overtemp indicator?"

Yes.  I've only had to replace the hi temp/over temp switch.  My original
one had 3 terminals, and was mounted just fore and slightly port of the oil
fill cap, and just starboard of the fore end of the heat exchange unit.

If it helps, and you don't mind me sending you a direct email, I can
include an attachment that Warren Updike sent me of pedestal to engine
wires and their colors, for things like these senders, etc.  His C320 is
#62, I'm 138.  But his wiring schematics perfectly matched mine.
-Christian


On Mon, Jun 17, 2019 at 2:10 PM Dave Chase <londoc at blackbury.com> wrote:

> I'm still working out the engine connections. Are there separate senders
> for temp gauge and overtemp indicator?
>
> Dave Chase
> 1994 C320 #97 "Indigo"
> Winthrop, MA
>
>
> On 6/17/19 3:00 PM, Christian wrote:
> > Sorry, just noticed you said "water temp gauge".  The link I sent is for
> > your high temp light/alarm.
> > -Christian
> >
> > On Mon, Jun 17, 2019 at 1:59 PM Christian <ccaper at gmail.com> wrote:
> >
> >> Dave,
> >>
> >> 1994 #138 here.  I replaced my high temp switch 2 years ago.
> >>
> >> I used this one:
> >>
> >>
> https://www.westmarine.com/buy/sierra--temperature-sender-used-with-light--10530822
> >>
> >> My original was the 3 terminals, where only 2 where used.  One of the
> >> terminals was a ground wire that ran to the engine block.
> >>
> >> The replacement I used, the body of the switch grounds into the the base
> >> it screws into, so you can remove the ground to engine wire.
> >>
> >> When I did my search, if I remember correct, I saw switches that closed
> at
> >> 170, 180, and 200.  My Perkins tends to run normal right at 183F.  So I
> >> didn't want false positives, so I went with 200, which is the switch in
> the
> >> link.
> >>
> >> Christian Caperton
> >> 1994 C320 #138 "Canuck"
> >> Monroe Harbor, Chicago, IL
> >>
> >
>