Section 6 - Storage
Page 88 90-899883179 OCTOBER 2007
Tube Ref No. Description Where Used Part No.
119
Storage Seal Rust Inhibitor Carburetor 92-858081K01
g. Turn ignition key to "OFF" position.
2. Refer to Flushing the Power Package and appropriately remove the water supply the
the seawater pickup pump.
3. Clean the flame arrestor and crankcase ventilation hoses and reinstall.
4. Lubricate all items listed in the Lubrication section.
5. On models with closed cooling systems: Test coolant to ensure that it will withstand the
lowest temperature expected during storage.
6. Service batteries according to the manufacturer's instructions.
7. Clean the outside of the engine and repaint any areas required with Mercury/
Quicksilver Light Gray Primer and Phantom Black Paint. After paint has dried, wipe
down the outside of the engine with Corrosion Guard.
Tube Ref No. Description Where Used Part No.
120
Corrosion Guard Outside of engine 92-802878 55
8. For sterndrive unit lay‑up, refer to appropriate Mercury MerCruiser sterndrive service
manual.
9. Replace the fuel filter. Refer to the Maintenance section for proper procedure.
10. Change the oil and oil filter.
Draining the Seawater System
!
CAUTION
Water can enter the bilge when the drain system is open, damaging the engine or causing
the boat to sink. Remove the boat from the water or close the seacock, disconnect and
plug the seawater inlet hose, and ensure the bilge pump is operational before draining.
Do not operate the engine with the drain system open.
!
CAUTION
Water can enter the bilge when the drain system is open, damaging the engine or causing
the boat to sink. Remove the boat from the water or close the seacock, disconnect and
plug the seawater inlet hose, and ensure the bilge pump is operational before draining.
Do not operate the engine with the drain system open.
IMPORTANT: Only drain the seawater section of the closed‑cooling system.
IMPORTANT: The boat must be as level as possible to ensure complete draining of the
cooling system.
Your power package is equipped with a drain system. Refer to Drain System
Identification to determine which instructions apply to your power package.
IMPORTANT: The engine must not be operating at any point during the draining procedure.
IMPORTANT: Mercury MerCruiser requires that propylene glycol antifreeze, mixed to the
manufacturer's instructions, be used in the seawater section of the cooling system for
freezing temperatures 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.
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