Seawater Pump Impeller; Propellers (Bravo One And Two) - Mercury D4.2L Manual

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)

Avoid Injury: Remote Control must be in NEUTRAL and ignition key removed from switch before re-
moving and/or installing propeller.
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.
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.
WARNING
WARNING
WARNING
93