[C320-list] C320-list Digest, Vol 4521, Issue 1

Thu Oct 12 17:00:08 PDT 2023

Hello Scott:

refer to this publication on the Catalina 320 Association.

https://c320.org/article.php/20060212151611361

I just performed this last week and also replaced the thermostat which was
appropriate for the last time the system was flushed.

The attached instructions are detailed, accurate, and easy to perform.
Just one addition that I would add.  You can use a shop vacuum cleaner that
can draw water.  Apply a tapered hose end attachment to the suction end of
the vacuum hose. With the vacuum, you can such water out of the coolant
system loop into the fresh water heater. Remove one hose for the fresh hot
water heater loop that runs to the engine.  Loosen the clamp on the return
end ( the other hose from the hot water heater) to allow air to escape.
You do not have to totally remove it.  Insert the tapered vacuum fitting
into the lumen of the detached hose and suck the water out of that section
of the coolant loop into the shop vacuum.  That will remove all of the
coolant from the fresh hot water heater.  Then reclamp the two hoses back
and refill the system.  Know this.  You will have to keep the radiator cap
off and when running the engine with the new coolant after you first fill
up you will have to slowly add more coolant to the system to feed the
supply into the freshwater loop.  It will inevitably have an air block.
You may have to shut the engine down for a bit.  That is why the person who
sent the attached article complained about a brief period of an overheating
engine alarm.  That was an air block in the coolant loop which has to be
worked out of the system.  DO not allow the engine to overheat for very
long.  Shut it down.  let it cool a bit.  Start it up again and add more
coolant mixture until all is running to temp.  You may have to repeat this
a few times.

Jeff
Petite Suite 329 hull 718

On Thu, Oct 12, 2023 at 4:54 PM <c320-list-request at lists.catalina320.com>
wrote:

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> Today's Topics:
>
>    1. Re: Flushing 3GM30F fresh water (Doug Treff)
>    2. Re: Flushing 3GM30F fresh water (Doug Treff)
>    3. Re: Flushing 3GM30F fresh water (ROBERT MILLER)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 11 Oct 2023 17:41:52 -0400
> From: "Doug Treff" <doug at treff.us>
> To: C320-List at Catalina320.com, "Jeff Hare"
>         <c320-list at lists.catalina320.com>
> Cc: "Scott Westwood" <scottwestwood at bellsouth.net>
> Subject: Re: [C320-list] Flushing 3GM30F fresh water
> Message-ID: <23b63bfe-ce1b-4613-8ca6-58b54d9585b2 at app.fastmail.com>
> Content-Type: text/plain;charset=utf-8
>
> Procedure here on the C320 site:
> https://c320.org/article.php/20060212151611361/print
>
> --
> Doug Treff
> doug at treff.us
>
> On Wed, Oct 11, 2023, at 2:00 PM, Scott Westwood via C320-list wrote:
> > I want/need to flush the fresh water system.? Does anybody have a
> > tutorial (or link to one)?? What equipment (that anyone would have
> > access to) do I need?? The manual is not very clear on what to hook up
> > where?? I know there are flush systems they have at auto parts stores.?
> > Will one of those work?? Any experience out there?? Can't be too
> > complicated once you know how but (Like sergeant Shultz: I know
> > nnn...othing).
> >
> >
> >
> >
> > Thanks,
> >
> >
> >
> >
> > Scott Westwood?scottwestwood at bellsouth.net C (919)- 819-9794
>
>
> ------------------------------
>
> Message: 2
> Date: Wed, 11 Oct 2023 17:41:52 -0400
> From: "Doug Treff" <doug at treff.us>
> To: C320-List at Catalina320.com, "Jeff Hare"
>         <c320-list at lists.catalina320.com>
> Cc: "Scott Westwood" <scottwestwood at bellsouth.net>
> Subject: Re: [C320-list] Flushing 3GM30F fresh water
> Message-ID: <23b63bfe-ce1b-4613-8ca6-58b54d9585b2 at app.fastmail.com>
> Content-Type: text/plain;charset=utf-8
>
> Procedure here on the C320 site:
> https://c320.org/article.php/20060212151611361/print
>
> --
> Doug Treff
> doug at treff.us
>
> On Wed, Oct 11, 2023, at 2:00 PM, Scott Westwood via C320-list wrote:
> > I want/need to flush the fresh water system.? Does anybody have a
> > tutorial (or link to one)?? What equipment (that anyone would have
> > access to) do I need?? The manual is not very clear on what to hook up
> > where?? I know there are flush systems they have at auto parts stores.?
> > Will one of those work?? Any experience out there?? Can't be too
> > complicated once you know how but (Like sergeant Shultz: I know
> > nnn...othing).
> >
> >
> >
> >
> > Thanks,
> >
> >
> >
> >
> > Scott Westwood?scottwestwood at bellsouth.net C (919)- 819-9794
>
>
> ------------------------------
>
> Message: 3
> Date: Thu, 12 Oct 2023 01:59:03 -0600 (MDT)
> From: ROBERT MILLER <r.miller at shaw.ca>
> To: Scott Westwood <scottwestwood at bellsouth.net>
> Cc: "c320-list at lists.catalina320.com"
>         <c320-list at lists.catalina320.com>
> Subject: Re: [C320-list] Flushing 3GM30F fresh water
> Message-ID:
>
> <679431985.31638092.1697097543737.JavaMail.zimbra at cds222.dcs.int.inet>
> Content-Type: text/plain;       charset=utf-8
>
> There is a step by step procedure on coolant replacement /flush in the
> technical articles section of the 320IA owners website.  I followed it last
> year and it worked well.
> Rob Miller
> Alchemy, #571
>
> Sent from my iPhone
>
> > On Oct 11, 2023, at 7:00 PM, Scott Westwood <scottwestwood at bellsouth.net>
> wrote:
> >
> > ?I want/need to flush the fresh water system.  Does anybody have a
> tutorial (or link to one)?  What equipment (that anyone would have access
> to) do I need?  The manual is not very clear on what to hook up where?  I
> know there are flush systems they have at auto parts stores.  Will one of
> those work?  Any experience out there?  Can't be too complicated once you
> know how but (Like sergeant Shultz: I know nnn...othing).
> >
> >
> >
> >
> > Thanks,
> >
> >
> >
> >
> > Scott Westwood scottwestwood at bellsouth.net C (919)- 819-9794
> >
>
> End of C320-list Digest, Vol 4521, Issue 1
> ******************************************
>

-- 

Jeffrey Kapec

*Tanaka Kapec Design Group*

11 Brookfield St.   Norwalk, CT 06851

203.846.3666

www.tkdg.com