[C320-list] Winterization

[Scott Thompson]

I'm not in Canada but I've never heard of a compass freezing. Mineral 
spirits are often used as a compass fluid. Not certain what is in our 
compasses. But mineral spirits have a freezing point of -60 degrees C 
according to one website I found.

BTW, the main problem with things freezing in your boat is because water 
expands when it freezes and the expansion can damage things. I'm not a 
chemist, but my father was a chemist who specialized in the properties 
of water and aqueous solutions, and he has told me that water is unusual 
in having this property. Most substances shrink as they cool and do not 
expand when they freeze.

Regarding the muffler, whenever I've tried to drain it nothing has come 
out. Not sure why not, but I haven't worried about it and instead rely 
on antifreeze run through the system until pink stuff is coming out the 
exhaust.


On 10/16/2019 11:59 AM, Gus Macdonald wrote:
> Christian, my winterizing process sounds similar to yours in that I rely on the antifreeze to displace water in the muffler.  Also never heard of anyone removing the compass.  Gets pretty cool up on Georgian Bay also.
>
> Gus
> 2004 Hull #999
> Georgian Bay
>
>> On Oct 16, 2019, at 10:39 AM, Christian <ccaper at gmail.com> wrote:
>>
>> Many thanks for sharing this.
>>
>> Quick question on an item in the doc.  "Start by opening the aqua muffler
>> drain and draining any water contained in the muffler.".
>>
>> I've never drained my aqua muffler, I've just ran more antifreez through to
>> ensure water out.  But draining sounds safer.  But unclear on how to drain
>> to aqua muffler, and where to look for drain to open.  I'm on a 1994 #138
>> Perkins engine model.
>>
>> Also, curious.  Does anyone remove their compass?  I don't know anyone in
>> Chicago that removes theirs, and it gets pretty darn cold here.
>>
>> Christian Caperton
>> 1994 C320 #138 "Canuck"
>> Monroe Harbor, Chicago, IL

-- 
Scott Thompson
Surprise, #653