Mercury 4.2 Diesel Operation & Maintenance Manual page 46

2. Use a 6 mm Allen wrench and remove the fluid filter assembly by turning the assembly nut counterclockwise and pulling at
the same time.
b
3. Push the hose of a suction pump through the suction pipe and down to the bottom of the housing.
4. Pump the fluid from the housing into a suitable container. Dispose of the fluid properly.
a
5. Remove and discard the filter element and the O‑rings.
6. Coat the new O‑rings with transmission fluid.
7. 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.
8. Install the fluid filter assembly in the transmission cavity by turning clockwise and pushing at the same time.
90-8M0113988 DECEMBER 2015
eng
a
a -
b -
13163
a - Suction pipe
b - Suction pump
b
13165
NOTICE
Assembly nut
Fluid filter assembly
c
b
a
13167
Section 4 - Maintenance
a - Filter element
b - Cover
c - O‑rings
Page 39