Transmission Removal - Mercury MerCruiser Service Manual

8. Install the new O‑rings and filter element.
b
a
Improper installation of the transmission fluid filter assembly may cause the fluid to foam or leak out, resulting in decreased
efficiency and damage to the transmission. Properly seat the transmission fluid filter during installation.
9. Install the fluid filter assembly in the transmission cavity by turning it clockwise and pushing at the same time.
10. Using a 6‑mm Allen wrench, turn the filter assembly nut clockwise to tighten. Tighten the filter assembly nut to
specification.
b
Description
Filter assembly nut
11. Fill the transmission to the proper level with the specified fluid. Refer to Filling.

Transmission Removal

Performing service or maintenance without first disconnecting the battery can cause product damage, personal injury, or
death due to fire, explosion, electrical shock, or unexpected engine starting. Always disconnect the battery cables from the
battery before maintaining, servicing, installing, or removing engine or drive components.
Discharge of oil, coolant, or other engine/drive fluids into the environment is restricted by law. Use caution not to spill oil,
coolant, or other fluids into the environment when using or servicing your boat. Be aware of the local restrictions governing
the disposal or recycling of waste, and contain and dispose of fluids as required.
NOTE: The following procedure describes the removal of the transmission without removing the engine. If the engine must be
removed, refer to Section 2C .
1. Disconnect the battery cables from the battery. Be certain to disconnect the negative (–) cable first.
2. If required, drain the transmission fluid. Dispose of the fluid according to local regulations.
3. Disconnect the water hoses from the transmission fluid cooler.
NOTE: The fluid cooler should be removed with the transmission.
4. On non‑DTS transmissions:
90-8M0099748 eng DECEMBER 2015
a
NOTICE
a
13173
WARNING
!
NOTICE
© 2016 Mercury Marine
ZF/45C, 45IV, 63A, 65IV Transmissions
c
a - Filter element
b - Cover
c - O‑rings
b
13167
a - Fluid filter assembly
b - Assembly nut
Nm
5‑8
lb‑in. lb‑ft
48‑72
Page 9A-13