[C320-list] Temperture Sender - 3GM30F - Test Procedures Fuel Gage / Temp Gage

[Chris Burti]

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On Thu, Jul 29, 2010 at 12:51 PM, Jamie Pett <JPett at jp2architects.com>wrote:

> Chris / Joe / List - Attached are test procedures for both the fuel and
> temperature gages for C-320's with Seaward engine control panels.
>
> These allow you to hopefully identify if the issue is the sender, gage,
> wire, etc.  These are probably obvious to those of you who know about
> such things electrical, but for the rest of us may be quite helpful.
> They require that you remove the panel face (six screws) to access the
> back of the gages and wiring harness, remove wires, etc. but nothing too
> difficult.
>
> Chris Burti is going to try to expand with an article.
>
> These procedures came from Seaward  Products who manufacture some (all?)
> of the engine control panel on Catalina's.  Seaward's panel guy is
> Dennis and he can be reached at 562-699-7997 extension 210 or via e-mail
> at dennisi at seawardproducts.com  He's very helpful.
>
> Seaward can supply new gages.  On my boat (1999 hull #614 with a yanmar
> 3gm30f) the temperature gage is model #84590F.  The gage was originally
> made by Teleflex, but is now manufactured by 'V-3' and Seaward can
> supply them for about $46 plus shipping if yours goes bad.  Dennis
> thought they might be available through Mack Boring as well.
>
> Temperature sending units can generally be gotten at marine parts
> suppliers  - in the Annapolis area one source is Bayshore Marine
> (410-263-8370) but you will need the spec. which for the 3GM30F with a
> Seaward panel is "Stewart Warner, 240 to 33 Ohms Resistance" - I think
> this is consistent for all late model C320's.
>
> My issue, gasp, appears to be the wire - so I'll be hatch diving in the
> lazarette shortly......
>
> Hope this is helpful.
>
>
> Jamie Pett
> Bella Luna
> #614
>
>
>
> -----Original Message-----
> From: c320-list-bounces at lists.catalina320.com
> [mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of Joseph
> Aberdale
> Sent: Wednesday, July 28, 2010 10:53 PM
> To: C320-List at Catalina320.com
> Subject: Re: [C320-list] Temperture Sender - 3GM30F
>
> Jamie,
>
> Please send me the Seaward test procedures.  Thank you.
>
> Joe Aberdale
> #908
>
> On Jul 27, 2010, at 11:03 PM, Jamie Pett wrote:
>
> > Jeff - Thanks.  Talked to Dennis at Seaward today, I am reasonably
> > sure  the problem is the wire - he initially thought I had a bad
> > gage - "lost zero"  and he sent test procedures to confirm, but I
> > ran those tonight and the gage seemed  ok based  the  test.  Wire
> > test definitely seems bad.
> >
> > Think wire is bad or shorting to ground, but not sure how to
> > confirm and find the problem with the wire and I ran out of
> > daylight ! Might it be right at the sender - connection seemed
> > fine ?  I am reasonably clueless about electrical systems.
> >
> > Anyway, I'll let you know what I find - I do have the Seaward test
> > procedures for the gage, wire and sender,  if anyone wants them.
> >
> > Jamie Pett
> > Bella Luna
> > #614
> >
> >
> > -----Original Message-----
> > From: c320-list-bounces at lists.catalina320.com on behalf of Jeff Hare
> > Sent: Tue 7/27/2010 7:32 PM
> > To: C320-List at Catalina320.com
> > Subject: Re: [C320-list] Temperture Sender - 3GM30F
> >
> > Hi Jamie,
> >
> > Seaward made the instrument panel. That is where I gor a spare temp
> > sender for our 2001 #809.  If you get one from Yanmar, it'll likely
> > not read correctly as they have there own panel.
> >
> > Check the connection on the sender. The wire may have corroded or
> > may be shorted to ground.
> >
> > Remove the wire and with a ohm meter, check whether the Screw in
> > the end of the sender is a short to the case (ground). Also check
> > whether the wire is shorted or broken?
> >
> > -Jeff
> >
> > ------Original Message------
> > From: Jamie Pett
> > Sender: c320-list-bounces at lists.catalina320.com
> > To: C320-List at catalina320.com
> > ReplyTo: C320-List at Catalina320.com
> > Subject: [C320-list] Temperture Sender - 3GM30F
> > Sent: Jul 27, 2010 12:40 PM
> >
> >
> >
> > I have what I believe is a failure of the temperature sender on our
> > 1999
> > - Yanmar 3 GM 30 F.  On starting the engine, it immediately reads 240
> > degrees.  The engine is running perfect, pumping water and cooling
> > fine,
> > etc.
> >
> >
> >
> > When I spoke to a marine dealer to get the sender, they said I
> > needed to
> > know what system / gage type  it was, since it wasn't Yanmar made
> > sender
> > -they mentioned  Teleflex, Stewart Warner, etc. - I cannot find any
> > such
> > indication on the gage or the sender, although I have not removed
> > sender
> > yet.
> >
> >
> >
> > Anyone have any thoughts , including any special process for the
> > removal
> > I should know about ? - It seems like its just one wire and then it
> > screws in like a spark plug.
> >
> >
> >
> > Thanks -
> >
> >
> >
> >
> >
> > Jamie Pet
> >
> > Bella Luna
> >
> > #614
> >
> >
> >
> >
> >
>
>


-- 
Chris Burti Farmville, NC