[C320-list] Tachometer location

[Robert E. Sloat]

Joe-The tachometer sending unit is located at the back of the engine on the
top, slightly to port near the flywheel.  It  measure the pulses from the
flywheel.  The sending unit is hexagonal and screws into what you would call
the bell housing on a car engine.  Two wires plug into the sending unit.
One is orange and the other is blue/red.  One my boat, it is right in front
of you when you remove the rear engine cover.

This information is from my Yanmar factory service manual which helped me
quickly locate the unit avoiding tracing of wires.

Hope this helps.

If the tachometer unit on your instrument panel is OK, then the sending unit
or its connections would be the likely culprits.

Bob Sloat
Savannah 894
----- Original Message ----- 
From: "Joe Barrett" <joe at dolphinmortgage.com>
To: "'C320-List'" <C320-List at catalina320.com>
Sent: Tuesday, June 20, 2006 9:41 AM
Subject: Re: [C320-list] temp gauge issue


> Hi Bob, I presume you have the Yanmar 3GM30F as I do. Where is the Tach
> connection located at the back of the engine? Mine must be loose or
corroded
> as well as it only works occasionally.
> Joe Barrett
> #689 Island Time
>
> ------------------------------------
> -----Original Message-----
> From: C320-List-bounces at catalina320.com
> [mailto:C320-List-bounces at catalina320.com] On Behalf Of Robert E. Sloat
> Sent: Tuesday, June 20, 2006 2:33 AM
> To: C320-List
> Subject: Re: [C320-list] temp gauge issue
>
> Check out a loose connection at the sensor.  I had my tachometer stop
> reading once while motoring home.  I have a 2002 320 in fresh water and
the
> tachometer connection at the back of the engine was a little bit corroded.
> I cleaned off the plug connections and coated the plug with ample
automotive
> dielectric grease and have not had a problem in 2 years.
>
> Bob Sloat
> Savannah 894
> ----- Original Message ----- 
> From: <crashley at gte.net>
> To: <russ at monacofamily.net>; "C320-List" <C320-List at catalina320.com>
> Sent: Tuesday, June 20, 2006 12:45 AM
> Subject: Re: [C320-list] temp gauge issue
>
>
> > Loose connections or a bad sensor? I had a bad connection on my temp
> sensor
> > that was acting up. Had to resplice the wire at the sensor end (on the
> > engine). Once in a while my fuel gauge goes to zero and recovers when
I'm
> > not looking, but it hasn't done that in a while.
> >
> > CRA
> > #882
> >
> >
> > ----- Original Message ----- 
> > From: "Russell G. Monaco" <russgm at gmail.com>
> > To: "C320-List" <C320-List at catalina320.com>
> > Sent: Monday, June 19, 2006 9:17 AM
> > Subject: [C320-list] temp gauge issue
> >
> >
> > > Always something new...
> > > Yesterday when I was returning to dock under power I noticed my temp
> gauge
> > > was reading about 120, but also jumping abit, FYI-120 is as far to
> > > left/coldest reading available, the engine is a very consistent 180
> > > degrees
> > > normally.  Any clues? any hints? any suggestions? any help....
> > >
> > > -- 
> > > Russell Monaco
> > > home:(914)669-8907, cell:(914)260-9850, work:(914)347-6360
> > >
> >
> >
> >
>