Protecting External Outboard Components; Protecting Internal Engine Components; Gearcase; Positioning Outboard For Storage - Mercury 15 EFI FourStroke Service Manual

Maintenance

Protecting External Outboard Components

• Lubricate all outboard components listed in the Inspection and Maintenance Schedule, preceding.
• Touch‑up any paint nicks.
• Spray Quicksilver or Mercury Precision Lubricants Corrosion Guard on external metal surfaces (except corrosion control
anodes).
Tube Ref No.
Corrosion Guard
120

Protecting Internal Engine Components

• Remove the spark plugs and add approximately 30 ml (1 oz) of engine oil or inject a five second spray of storage seal
inside of each cylinder.
• Rotate the flywheel manually several times to distribute the oil in the cylinders. Install spark plugs.
• Change the engine oil.

Gearcase

• Drain and refill the gearcase lubricant (refer to Gearcase Lubrication).

Positioning Outboard for Storage

Storing the outboard in a tilted position can damage the outboard. Water trapped in the cooling passages or rain water
collected in the propeller exhaust outlet in the gearcase can freeze. Store the outboard in the full down position.
• Store the outboard in an upright position, horizontal with the front of the engine facing up (tiller handle facing up), or on the
port side.
Page 1B-18
Description
External metal surfaces (except corrosion control anodes)
Upright position
© 2018 Mercury Marine
Where Used
NOTICE
63254
92-802878 55
90-8M0125265 eng NOVEMBER 2017
Part No.