MerCruiser Axius SeaCore 496 MAG Owner's Manual page 122

Section 5 - Maintenance
Rotating propellers can cause serious injury or death. Never operate the boat out of the
water with a propeller installed. Before installing or removing a propeller, place the drive
unit in neutral and engage the lanyard stop switch to prevent the engine from starting.
Place a block of wood between the propeller blade and the anti‑ventilation plate.
b.
c.
3. Connect hose between flushing attachment and water source.
4. Close the seacock, if equipped, to prevent water from siphoning into the engine or boat.
5. Remove the seawater inlet hose from the seawater pump and plug the hose to prevent
water from siphoning into the engine or boat.
6. Using a suitable adapter, connect the flushing hose from the water source to the water
inlet of the seawater pump.
Without sufficient cooling water, the engine, the water pump, and other components will
overheat and suffer damage. Provide a sufficient supply of water to the water inlets during
operation.
7. With sterndrive in normal operating position, open the water source fully.
8. Place the remote control in neutral idle speed position and start engine.
Operating the engine out of the water at high speeds creates suction, which can collapse
the water supply hose and overheat the engine. Do not operate the engine above 1400
RPM out of the water and without sufficient cooling water supply.
9. Slowly advance throttle until engine reaches 1300 RPM (+/‑100 RPM).
10. Observe the water temperature gauge to ensure that the engine is operating in the
normal range.
11. Operate engine with sterndrive in neutral for about 10 minutes or until discharge water
is clear.
12. Slowly return throttle to idle speed position.
13. Stop engine.
14. Shut off the water and remove flushing attachments.
Page 114
Remove propeller.
Install the appropriate flushing attachment over the water inlet holes in the gear
housing.
WARNING
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NOTICE
NOTICE
90-899883154 JANUARY 2008