Mercury D4.2L Manual page 111

CD666
Power Package Layup (Continued)
Dealer should perform the remaining tasks prior to layup:
1
After draining, perform all checks, inspections, lubrication and fluid changes outlined in Maintenance
Schedules.
If boat is to remain in the water, seacock, if so equipped, must remain closed until engine is to be re-
started to prevent water from flowing back into seawater cooling system. If boat is not fitted with a sea-
cock, water inlet hose must be disconnected and plugged to prevent water from flowing into cooling
system and/or boat.
2
Close seacock, if so equipped, or disconnect and plug seawater inlet hose, if boat is to remain in the water.
3
Clean seawater strainer (refer to "Cleaning Quicksilver Seawater Strainer").
IMPORTANT: Mercury MerCruiser recommends that propylene glycol (a nontoxic and environmentally
safe) antifreeze be used in seawater section of the cooling system for cold weather or extended storage.
Make sure that the propylene glycol antifreeze contains a rust inhibitor and is recommended for use in
marine engines. Be certain to follow the propylene glycol manufacturer's recommendations. Also,
check local laws about disposal of the antifreeze solution after use.
4
Fill a container with approximately 6 U.S. quarts (5.6L) of antifreeze and tap water mixed to manufacturer's
recommendation to protect engine to the lowest temperature to which it will be exposed during cold weather or
extended storage.
5
Disconnect hose from seawater inlet side of seawater pump. Connect an appropriate length piece of hose
to seawater pump and place the other end of the hose into container of coolant mixed in step 4.
6
Start engine and run at idle speed until coolant mixture has been pumped into engine seawater system, then
stop engine.
7
Reconnect water inlet hose to seawater pump.
8
Clean engine and coat with Quicksilver Corrosion Guard.
9
Lubricate all cables and linkages.
10
Remove and store battery in a cool, dry place. Do not store on a concrete surface, or on the ground Place
on a dry, wood board or a thick plastic base (Refer to battery manufacturer's instructions.)
11
Remove seawater pump impeller for storage. Remove seawater pump cover mounting screws. Remove
cover and gasket. Ease impeller off pump shaft with two screwdrivers. Reinstall cover for storage.
NOTE: Pump shown removed for visual clarity only.
A
Cover and Screws
B
Gasket
C
Impeller
IMPORTANT: Place a CAUTION TAG at instrument panel and in engine compartment stating that "Sea-
water Pump Impeller is Out - DO NOT Operate Engine" and the warning that the seacock must be opened
or the water inlet hose reconnected prior to starting the engine.
CD72
Stern drive unit should be stored in full "down" position. Universal Joint bellows may develop a "set"
if unit is stored in raised position and may fail when unit is returned to service.
12
Place stern drive unit in the full DOWN/IN position.
CAUTION
CAUTION
111