Monterey Boats 186MS, Owner'S Manual, Page: 155 / 254

155
MONTEREY
BOATS
Seasonal Maintenance
• Remove cushions, open as many locker doors
as possible. Leaving as many of these areas
open as possible will improve the boat’s ven-
tilation during the storage period.
NOTICE:
It is recommended that a mildew preventer
be hung in the head compartment or cabin
before it is closed for storage.
• Clean the exterior upholstery with a good vinyl
cleaner and dry thoroughly. Spray the weather
covers and boat upholstery with a spray dis-
infectant. Enclosed areas such as the in-floor
compartments, storage locker areas, etc.
should also be sprayed with this disinfectant.
14.2 Winterizing
Fresh Water System
The entire fresh water system must be completely
drained. Disconnect all hoses, check valves, etc.
and blow all the water from the system. Make
sure the water heater and fresh water tank are
completely drained. Use only very low air pres-
sure when doing this to prevent possible system
damage. Because of the check valve mechanism
built in the pump, blowing the lines will not remove
the water from the fresh water pump. Remove
the inlet and outlet hoses on the pump. Turn the
pump on and allow it to pump out any remaining
water (about a cupful).
A recommended alternative to the above-men-
tioned procedure is the use of commercially avail-
able non toxic, fresh water system antifreeze.
After draining the potable water tank, lines and
water heater, pour the antifreeze mixture into the
fresh water tank, prime and operate the pump un-
til the mixture flows from all fresh water faucets.
Be sure to open all hot and cold water faucets,
including the fresh water shower in the cockpit and
the faucet in the wet bar. Make sure antifreeze
has flowed through all of the fresh water drains
and the ice maker supply line.
The shower drain water sump system must be
properly winterized. Clean debris from the drain
and sump and flush for several minutes with fresh
clean water. After the system is clean, pump
the drain sumps as dry as possible. Then pour a
potable water antifreeze mixture into the shower
drain until antifreeze has been pumped through
the entire system and out of the thru-hull.
For additional information refer to the Fresh Wa-
ter System chapter. Also, refer to the ice maker
owner’s manual for information on winterizing
the ice maker.
Raw Water System
Completely drain the raw water system for the
livewell. Disconnect all hoses and blow the water
from the system. Use only very low air pressure
when doing this to prevent possible system dam-
age.
Make sure all the water is removed from the
livewell. Also make sure the drains are clear and
free flowing.
Pour potable water antifreeze in baitwell until
antifreeze is visible at the drain fitting in the hull
side. Wipe down the inside of the baitwell.
Engine Raw Water Systems
Inboard Engines
Drain all of the sea strainers, heat exchangers
and raw water supply and discharge lines for the
engine and raw water supply pumps. Make sure
all seawater has drained from the exhaust sys-
tem. Once this is accomplished, pour a non toxic
marine engine antifreeze mixture into a large pail
and put the engine raw water intake lines into the
solution. Run the engine until the antifreeze solu-
tion is visible at the transom exhaust port or the
propeller exhaust hub, then shut the engine off.
Outboard Engines
The engine should be flushed with fresh water for
at least 15 minutes prior to winter storage. This
will remove salt, sand and other contaminates
that can damage the engine. It is also important
to “Fog” the cylinders, change the gear oil and
change the oil. Coat each engine with a protector,
wax the exterior and properly store and charge the
batteries. You should refer to the engine owner’s
manual or contact your dealer for specific instruc
-
tions on winterizing your engines.
NOTICE:
Properly winterize the engines and fuel sys-
tem by following the engine manufacturer’s
winterizing procedures located in your en-
gine owner’s manuals or contact a Monterey
dealer.
Refer to the Raw Water System chapter for ad-
ditional information on the raw water system.