[C320-list] Water heater replacement now coolant.....

[KEN GEIGER]

I am just in the process of doing this along with changing 21 year old hoses to hot water heater.  Hope this link helps.   
See  https://c320.org/ar,ticle.php/20060212151611361/print

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  On Sun., 23 May 2021 at 18:20, Jamie Pett<JPett at jp2architects.com> wrote:   Thanks for the assistance. I am struggling mightily. Got the old heater out but decided it would be the moment to drain and replace the motor coolant. Got it drained but cannot find replacement Yanmar coolant - anyone know where that can be found in the Annapolis area ? 



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Be well. Be safe. Be kind.

R. JAMES  PETT  \ AIA 
Principal

 D. 410.646.8301
C. 410.446.8515
www.JP2architects.com
> On May 21, 2021, at 9:26 AM, Jamie Pett <JPett at jp2architects.com> wrote:
> 
> John - Thanks for the help. Replacing the hoses sounds like a good idea - do you recall what length you needed ? 
> 
> So the heater hoses are the closed engine loop, correct ? After the replacement I assume you just top off the coolant ? 
> 
> Jamie Pett
> JP2 Architects
> 
>> On May 12, 2021, at 9:07 AM, John Meyers <jcmeyers7 at gmail.com> wrote:
>> 
>> Jame,
>> 
>> One more thing.....  Keep the coolant from the hose, if you want to anyway,
>> to be replaced after the new heater is connected. There might be a quart or
>> two. Run the engine for a couple minutes and the engine coolant level
>> should go down so you can add the old or new coolant. This may take a
>> couple cycles to get all the air out of the new lines etc and to get the
>> coolant all back in.
>> 
>> As far as the reattaching the rear bracket - I don't remember that being a
>> problem. As a disclaimer - "Your experience may be different."
>> 
>> If I think of anything else I'll let you know.
>> 
>> John Meyers
>> 
>>>> On Wed, May 12, 2021 at 8:40 AM John Meyers <jcmeyers7 at gmail.com> wrote:
>>> 
>>> Jamie,
>>> 
>>> I did this a couple years ago.
>>> 
>>> Good on the bypass. But I disconnected the end of one hose from the engine
>>> and allowed fluid to drain into a pan. Then I took off the other hose from
>>> the engine. Putting a plastic bag over one end and punching a hole in the
>>> bag I blew out any fluid remaining.
>>> 
>>> Obviously , there are some plumbing and other stuff that needs to be
>>> removed such as electrical.
>>> 
>>> There should be enough hose between the engine and heater that when you
>>> start to pull it out and you can disconnect hoses from heater.
>>> 
>>> Getting the old heater out is somewhat cumbersome with lifting and
>>> twisting but not a huge deal. Same for putting the new one in.
>>> 
>>> While the heater was out I replaced the hoses from the engine to heater as
>>> they were over 21 years old. This was not a big problem as the cubby below
>>> the oven can be removed to give hand access to the hoses to direct them
>>> from A to B.
>>> 
>>> Hope this helps.
>>> 
>>> John Meyers
>>> Wind Chime #406
>>> Muskegon, MI
>>> 
>>> On Tue, May 11, 2021 at 7:09 PM Jamie Pett <JPett at jp2architects.com>
>>> wrote:
>>> 
>>>> Hi list - hope everyone is well.  So I am tackling a replacement of my
>>>> hot water heater on Bella Luna and wonder if anyone can provide a bit of
>>>> guidance. Ordered a replacement unit -same Seaward 6 ga.  that is currently
>>>> in the boat.
>>>> 
>>>> Pulled galley cabinet unit, tied hot and cold water lines together as a
>>>> temp.bypass, and disconnected power.
>>>> 
>>>> So original Seaward 6 ga.unit largely disconnected but did not yet pull
>>>> the heat exchanger lines off.  Current question - anticipating when I pull
>>>> those the coolant from the engine will drain out ? Bigger question is after
>>>> getting the new unit connected, how do I purge the air out of the coolant
>>>> loop ?
>>>> 
>>>> Oh, and any suggestions on how to get the rear mounting bracket
>>>> re-fastened?
>>>> 
>>>> Any advice appreciated. Thanks.
>>>> 
>>>> Jamie Pett
>>>> Bella Luna
>>>> C-320 # 614
>>>> 
>>>> Sent from my iPad
>>>> R. JAMES  PETT\AIA
>>>> Principal
>>>> 
>>>> D. 410.646.8301 C.410.446.8515
>>>> 2811 Dillon Street, Baltimore, MD 21224
>>>> E.JPett at jp2architects.com
>>>> 
>>>> 
>>>> 
>>>> JP2 A R C H I T E C T S
>>>> 
>>>> 
>>>> 
>>>> 
>>>> Be well. Be safe. Be Kind.
>>>> 
>>>