Mariner Mercury 105/140 JET, Service Manual

Page: 686 / 797

6D-34 - LOWER UNIT 90-824052R3 JUNE 2002
19. Start cover nut a few turns by hand, then using
Cover Nut Tool (91-61069) and torque wrench,
torque cover nut to 210 Ib. ft. (284.5 N·m).
b
c
a
51871
a - O-ring
b - Cover Nut Tool
c - Torque Wrench
20. Bend one lock tab of tab washer into cover nut
(only one will align).
21. Bend remaining tabs of tab washer toward front
of gear housing.
22. Use Shift Shaft Bushing Tool (91-31107) and
torque shift shaft bushing to 30 Ib. ft. (40.5 N·m).
Water Pump
REASSEMBLY/INSTALLATION
1. Install oil seals into water pump base, as follows:
a. Place water pump base on a press.
b. Just before installing each seal apply Loctite
271 on outside diameter of oil seal.
c. With a suitable mandrel, press the smaller
diameter oil seal into pump base with lip of oil
seal toward impeller side of base.
d. With a suitable mandrel, press the larger
diameter oil seal into pump base with lip of oil
seal toward gear housing side of base.
e. Wipe any excess Loctite from oil seals and
water pump base.
2. Install O-ring into O-ring groove of water pump
base. Lubricate O-ring and oil seals with 2-4-C
w/Teflon Marine Lubricant (92-90018A12).
a
b
c
51869
a - Mandrel
b - Oil Seal (Smaller OD)
c - O-ring Groove
3. Install divider block if removed. Use RTV Sealer
to seal seams between divider block and gear
housing.
a
51870
a - Divider Block