Preparation; Disconnecting The Fluid Systems; Fuel Hose; Steering Hoses (Sterndrive) - Mercury MerCruiser Service Manual

Removal

Preparation

1. Remove the boat from the water.
Performing service or maintenance without first disconnecting the battery can cause product damage, personal injury, or
death due to fire, explosion, electrical shock, or unexpected engine starting. Always disconnect the battery cables from the
battery before maintaining, servicing, installing, or removing engine or drive components.
2. Disconnect the battery cables from the battery.
NOTE: The sterndrive must be removed before removing the engine.
3. Remove the sterndrive. (Refer to the appropriate sterndrive service manual.)
4. Disconnect propshaft on TowSport and inboard models.
5. Remove the engine cover.

Disconnecting the Fluid Systems

Fuel Hose

Fuel is flammable and explosive. Ensure that the key switch is off and the lanyard is positioned so that the engine cannot
start. Do not smoke or allow sources of spark or open flame in the area while servicing. Keep the work area well ventilated
and avoid prolonged exposure to vapors. Always check for leaks before attempting to start the engine, and wipe up any
spilled fuel immediately.
1. Close the fuel shut‑off valve, if equipped.
2. Loosen the hose clamp retaining the fuel line to the fuel inlet.
3. Disconnect and plug the fuel line to prevent fuel in the line from leaking into the bilge.

Steering Hoses (Sterndrive)

1. Disconnect the hydraulic hoses from the steering actuator.
a
b
Typical power-assisted steering connections
a - Hydraulic hoses
b - Power‑assisted steering actuator
2. Plug or cap all open fittings to prevent contamination and loss of fluid.
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© 2016 Mercury Marine
WARNING
WARNING
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b
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90-8M0099748 eng DECEMBER 2015