93
CB66
Seawater Pump Impeller
This maintenance should be performed by an Authorized MerCruiser Dealer.
1 Seawater pump impeller should be inspected whenever insufficient seawater flow is suspected (if operating
temperature exceeds normal range).
CB421
Propellers (Bravo One and Two)
WARNING
Avoid Injury: Remote Control must be in NEUTRAL and ignition key removed from switch before re-
moving and/or installing propeller.
WARNING
Avoid Injury: Place a block of wood between anti-ventilation plate and propeller to protect hands from
propeller blades and to prevent propeller from rotating when removing propeller nut.
WARNING
Avoid Injury: Periodically check propeller nut for tightness during boating season. A minimum of 55
lb-ft (75 Nm) torque is required.
CA78
REMOVAL (BRAVO ONE AND TWO)
2 Place wood block between propeller blade and anti-ventilation plate to prevent rotation. Straighten bent tabs
on tab washer.
3 Turn propeller shaft nut counterclockwise to remove nut.
4 Slide tab washer, spline washer, propeller and thrust hub off propeller shaft.
CA79
REPAIR
Some damaged propellers can be repaired. See your dealer.
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