I was told that I should not "fog" my 2 year old fuel injected (5.0-v8)
boat engine for winter storage. What is the correct procedure to prep
the engine for storage?
Thanks in advance,
....cb

fogging means introducting special oil into the intake passages and
combustion chamber. the stick, vaporous oil protects metal surfaces
from corrosion. On a 4-stroke, this means intake valve stems, piston
rings, cylinder walls, and exhaust valves.

technically fuel injected engines do need their fuel to be stabilized
because the efi gas is not exposed to air. but the the fuel in the tank
is. so stabilizing fuel still makes sense.

my guess is the person who advised you confused fogging with
stabilizing.

editor
http://www.marineenginedigest.com

I guess I should have replaced the word "fogging" with "winterizing".

After posting my question, I spoke to the service mgr at the dealer, he
confirmed the pre-storage procedure of running the motor for 5 minutes @
1300 rpm on a mixture of 5 gallons gas and 2 quarts 2 cycle TCW-3 oil
with one ounce fuel stabilizer concentrate added. I already stabilized
the gas in the fuel tank before the last outing of the season.

ref: Mercury Service Bulletin No. 2001-8

thanks.


ed wrote:
fogging means introducting special oil into the intake passages and
combustion chamber. the stick, vaporous oil protects metal surfaces
from corrosion. On a 4-stroke, this means intake valve stems, piston
rings, cylinder walls, and exhaust valves.

technically fuel injected engines do need their fuel to be stabilized
because the efi gas is not exposed to air. but the the fuel in the tank
is. so stabilizing fuel still makes sense.

my guess is the person who advised you confused fogging with
stabilizing.

editor
http://www.marineenginedigest.com

the only engines I know abnout that MUST NOT be fogged are Mercury
Optimax. It shouldnt hurt any other motor.

Call me crazy but I even fog my ATV and chainsaw !

Matt

Evinrude E-TEC engines feature self-winterizing at the touch of the
button.

editor
http://www.marineenginedigest.com

"Dread Pirate Szfranski" wrote in message
...
On 6 Nov 2005 08:20:24 -0800, "ed"
wrote:

Evinrude E-TEC engines feature self-winterizing at the touch of the
button.

I know.

Winterizing? That is putting the propane catalytic heater in the boat, when
I go sturgeon fishing.

Gene Kearns wrote:
On 5 Nov 2005 19:02:46 -0800, wrote:

the only engines I know abnout that MUST NOT be fogged are Mercury
Optimax. It shouldnt hurt any other motor.

Call me crazy but I even fog my ATV and chainsaw !

Matt

Really?

Anybody know the reason why? If they are not fogged.... how can one
protect them during periods of non-use??

the reason is that the optimax uses the cylinders to help pressurizing
its air system. It will leave injecors open during compression. That
way it prsssureizes its air system fast enough to start. Once its
running hte compressor does it.

If you have fogging oil in the cylinders it will get INTO the injectors
and seizes them.

More detail about this and how its done right can be read he

http://www.harbercraft.com/Forum/viewtopic.php?t=4833

Matt

P.S.

a motor with aluminum block, head and cylinders like IMO the ETEC is
wont need to protect the cylinders from corrosion as much as a cast
steel motor.

your welcome I wrote it myself .. is for a jetdrive but the block is
the same 2.5l block as is used in 150 and 175 HP outboards

Matt