6E-30 - LOWER UNIT
90-824052R3 JUNE 2002
Example 1 (if backlash is too high)
Backlash checks:
(subtract) middle
of
specification:
You get:
add this quantity of
shims:
.045 in.
.025 in.
.020 in.
(1.14 mm)
(0.64 mm)
(0.51 mm)
Example 2 (if backlash is too low)
Backlash checks:
middle of specification:
(subtract) You get:
subtract this quantity of
shims:
.025 in.
.009 in.
.016 in.
(0.64 mm)
(0.23 mm)
(0.41 mm)
1. Lubricate the bore into which the reverse gear
bearing adaptor is to be installed with Quicksilver
Super Duty Gear Lubricant.
2. Place the shim(s) into reverse bore of gear
housing.
3. Position the bearing adaptor in the gear housing.
a
b
55099
a - Bearing Adaptor
b - Shims
4. Position the reverse gear (without the thrust race
or thrust bearing) into the gear housing and into
the adaptor.
a
55100
a - Reverse Gear
5. Install PILOT RING (91-18603) over DRIVER
TOOL (91-18605) and seat pilot ring in gearcase
against inner ledge. Thread RETAINER
(91-18604) into bearing carrier threads. Install
SCREW (10-18602) into retainer and gently
tighten screw against driver tool while holding
retainer securely. Continue to apply pressure
against driver rod until reverse gear/bearing cup
adaptor JUST SEATS in gearcase. DO NOT
OVER-SEAT the adaptor as the reverse gear
bearing will be damaged. As bearing adaptor
begins to seat, the effort required to turn screw
will increase considerably.
d
a
c
b
e
a - Pilot Ring (91-18603)
b - Driver Tool (91-18605)
c - Inner Ledge
d - Retainer (91-18604)
e - Screw (10-18602)
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