Mercury Mercruiser Tow Sport 5.7 MPI Manual page 61

a. Models with Walter V‑drive transmissions: Disconnect water inlet hose from the transmission fitting. Using
appropriate connector, connect water hose to water source. Proceed to Step 3.
b.
All other models: Using appropriate connector, connect the flushing hose from the water source to the water inlet
hose (upper hose) of the seawater pickup pump. Proceed to Step 3.
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.
2.
If flushing the engine with the boat out of the water, remove the propeller. Refer to boat manufacturers' instructions.
a. Models with Walter V‑drive transmissions: Disconnect water inlet hose from transmission fitting. Using appropriate
connector, connect the flushing hose. Proceed to Step 3.
90-8M0076545 NOVEMBER 2012
eng
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WARNING
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Section 5 - Maintenance
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Page 53