With all this info, I have been digging into some of this, and have read a few 
instances of the engine taking off in the fogging oil on Cruisers Forum and 
whatnot. Having had a gas as well as diesel take off on me, it makes me 
nervous.  Not enough to not do it, but if I did, I would do it with two people, 
so I could block the intake if it got away. Interesting you have gotten away 
with it, using the Amsoil, maybe I will try it with that. At this point of the 
year, tho, I think  I will just cycle it a few times till spring. This has been 
interesting, and I will definitely do a fogging next fall and immediately plug 
both openings.  

 

Bill Coleman

Erie PA

 

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Josh Muckley 
via CnC-List
Sent: Wednesday, January 22, 2020 6:21 PM
To: C&C List
Cc: Josh Muckley
Subject: Re: Stus-List [EXTERNAL] Re: Condensation

 

I've heard numerous people suggest that the engine "could" ignite on fogging 
oil.  I have not been able to find a substantiating source for this concern.  
In my particular case I used Amsoil synthetic fogging oil which may have a 
higher flash point than others.  Besides, what if the engine did start?  I 
would also suggest pulling the stop and decompression levers.  There is no need 
for compression and the extra fuel just thins out the fogging out.

 

Josh Muckley

S/V Sea Hawk 

1989 C&C 37+

Solomons, MD 

 

On Wed, Jan 22, 2020, 2:10 PM Shawn Wright via CnC-List <cnc-list@cnc-list.com> 
wrote:

I forgot this thread was initially about engine condensation. For a gas engine, 
I would fog it for sure, we always did with inboard or outboards. With a 
diesel, turning it over occasionally should be more than sufficient. If you do 
want to fog your diesel, do NOT use the starter, as it may ignite the fogging 
oil if cranking too fast. Have someone spray it in the intake (with air filter 
removed) while cranking the engine by hand only, and fuel supply shut off (use 
a decompression lever if present). Do not use too much fogging oil or you risk 
hydrolocking the engine - there is very little volume in the combustion chamber 
of a diesel at TDC, so it doesn't take much.


--

Shawn Wright

shawngwri...@gmail.com

S/V Callisto, 1974 C&C 35

https://www.facebook.com/SVCallisto

 

 

On Tue, Jan 21, 2020 at 2:34 PM Josh Muckley via CnC-List 
<cnc-list@cnc-list.com> wrote:

Diesel engines CAN be fogged.  Yanmars are a little frustrating though since 
they don't have glow plugs (like spark plugs) to remove for fogging.  Mine was 
a real turd to get started the following season and I opt for rolling the 
engine as often as possible through the winter months.

 

Josh Muckley 

S/V Sea Hawk 

1989 C&C 37+

Solomons, MD 

 

On Tue, Jan 21, 2020, 3:20 PM Della Barba, Joe via CnC-List 
<cnc-list@cnc-list.com> wrote:

I have never had an issue with my engine from sitting during the winter, but I 
do very generously treat it with fogging oil. 

I am not sure about a diesel though, it might use the fogging oil for fuel L

 

 

Joe Della Barba Coquina C&C 35  MK I

www.dellabarba.com

 

 

 

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Josh Muckley 
via CnC-List
Sent: Tuesday, January 21, 2020 4:14 PM
To: C&C List <cnc-list@cnc-list.com>
Cc: Josh Muckley <muckl...@gmail.com>
Subject: [EXTERNAL] Re: Stus-List Condensation

 

The trouble with engine condensation and keeping a boat in the water is that 
the wet muffler creates a loop seal and will push/pull moist air through the 
engine cylinders.  In my case it resulted in stuck piston rings as indicated by 
low compression.  Unbeknownst to me, the OEM suggests bagging the intake and 
plugging the exhaust.  Instead, I have chosen what I think is a more 
conservative approach.  I installed a 100w (120v) engine block heater to drive 
out the moisture, and to keep the air from being push/pulled I loosen the 4 
bolts holding the exhaust goose neck.

 

As for moisture in the cabin, the heat from the engine helps keep things from 
freezing and drives out the moisture to help keep things from getting mildew.  
In addition, I keep a household dehumidifier running full blast 24/7.  Between 
the block heater and the dehumidifier the cabin is less than 40% humidity and 
usually better than 50°F.

 

Keeping air flow is the other key to mildew and moisture management.

 

Josh Muckley 

S/V Sea Hawk 

1989 C&C 37+

Solomons, MD

 

On Tue, Jan 21, 2020, 1:18 PM Bill Coleman via CnC-List <cnc-list@cnc-list.com> 
wrote:

I wonder if anyone has any profound opinions on condensation, two aspects in 
particular I am concerned with.

One is in the engine, I have seen boats who have plugged the exhaust pipe(s), 
and maybe even the intake inside the boat – 

 

And also in the cabin. I usually leave a hatch and something else on the other 
end of the boat open, so some air can circulate throughout the winter.

Then I began to doubt the usefulness of this a couple weekends ago, when It hit 
71 here, and was still 45 down in the cabin.

I noticed lots of condensation below, which really bothers me.

 

Does anyone know what the best solution is ?

 

Bill Coleman

Erie PA

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every one is greatly appreciated.  If you want to support the list - use PayPal 
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Thanks everyone for supporting this list with your contributions.  Each and 
every one is greatly appreciated.  If you want to support the list - use PayPal 
to send contribution --   https://www.paypal.me/stumurray

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every one is greatly appreciated.  If you want to support the list - use PayPal 
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