Flushing The Power Package; Inboards - Mercury Inboard 5.7L Manual

7. While holding the adjustment stud at the correct belt tension, tighten the
16 mm (5/8 in.) locking nut.
8. Operate the engine for a short period of time and recheck the belt adjustment.

Flushing The Power Package

Inboards

NOTE: Flushing is needed only for salty, brackish, mineral laden or polluted water
applications. Flushing is recommended after each outing for best results.
1. Close the seacock, if equipped, or remove the water inlet hose and plug the inlet.
2. Drain the seawater from the engine.
3. Attach the quick connect fitting to a water hose.
4. Open the water source completely.
5. Remove the blue cap from the flush socket on the engine
Overheating from insufficient cooling water will cause engine and drive system damage.
Ensure that there is sufficient water always available at water inlet holes during operation.
Do not let water run more than 15 seconds with engine not operating or too much flushing
water will collect in the muffler.
90-860174050 JUNE 2005
a
a - 8 mm (1/16 in.) adjusting stud
b
6119
b - 16 mm (5/8 in.) locking nut
CAUTION
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CAUTION
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Maintenance
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