[C320-list] Water heater replacement

[John Meyers]

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.
>>
>