Mercury MerCruiser MCM 4.3L ALPHA Service Manual page 32

MAINTENANCE
8. Prepare EFI fuel system for extended storage as follows:
a. Allow engine to cool down.
b. Remove the water separating fuel filter.
c. Pour out a small amount of fuel into a suitable container, then add approximately 2
d. Reinstall water separating fuel filter.
e. Start and operate engine at idle speed until the water separating fuel filter and fuel
f.
g. Install new filter.
9. Prepare carbureted fuel system for extended storage as follows:
a. Remove flame arrestor assembly and start engine.
b. While operating engine at fast idle (1000-1500 rpm), fog internal surfaces of induc-
c. Squirt the remaining 2 ounces (57 g) of Storage Seal (or oil) rapidly into carburetor,
10. Turn ignition key to OFF position.
11. Refer to "Flushing Cooling System" and appropriately remove water supply to the sea-
water pickup pump.
12. Clean flame arrestor and crankcase ventilation hoses and reinstall.
13. Lubricate all items listed in "Lubrication" section.
14. Drain seawater section of cooling system as outlined in "Draining Instructions" section.
15. On Models with Closed Cooling System: Test coolant to ensure that it will withstand
the lowest temperature expected during storage.
16. Service batteries per manufacturer's instructions.
17. Clean outside of engine and repaint any areas required with Quicksilver Primer and
Spray Paint. After paint has dried, spray Quicksilver Corrosion and Rust Preventive
Type II or wipe down with Quicksilver Storage Seal or SAE 20W engine oil.
18. For sterndrive unit layup, refer to appropriate sterndrive service manual.
NOTE: For additional protection against freezing and rust to the exhaust manifolds and
other components, a 50-50 mixture of antifreeze and water can be run through the engine
during Power Package Layup.
Index
Page 1B-32
fluid ounces (60 ml) of Quicksilver 2-Cycle Outboard Oil to fuel in the water separat-
ing fuel filter.
injection system are empty and engine stops.
Remove and discard water separating fuel filter.
a - Water Separating Fuel Filter
tion system and combustion chambers by squirting approximately 8 ounces (227
grams) of Quicksilver Storage Seal or SAE 20W engine oil into carburetor bores.
just as the engine begins to stall due to lack of fuel. Allow engine to stop.
a
SERVICE MANUAL NUMBER 25
75533
90-861328--1 NOVEMBER 1999