Reverse Gear Bearing Adaptor Assembly - Mercury 150 EFI Service Manual

Reverse Gear Bearing Adaptor Assembly

INSTALLATION
NOTE: If the reverse gear, reverse gear adaptor, large thrust bearing, or bearing race in
the gear housing were not replaced, install the same shim(s) (or the same thickness of
shim(s)) that were taken out when adaptor was removed. If the reverse gear, reverse gear
adaptor, large thrust bearing, bearing race, or gear housing were replaced, install 0.008
in. (0.51 mm) of shims.
NOTE: If backlash has already been checked and it has determined that it needs to be
adjusted, (see Checking Reverse Gear Backlash), adding 0.001 in. (0.025 mm) shims will
reduce the gear backlash by approximately 0.001 in. (0.025 mm). Subtracting 0.001 in.
(0.025 mm) shims will increase backlash by approximately the same amount.
subtract this quantity of shims:
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 -
90-883728 JULY 2001
Example 1 (if backlash is too high)
Backlash checks:
(subtract) middle
of
specification:
You get:
add this quantity of shims:
Example 2 (if backlash is too low)
middle of specification:
Backlash checks:
(subtract) You get:
a a
b
b
Bearing Adaptor
Shims
0.045 in. (1.14 mm)
0.025 in. (0.64 mm)
0.020 in. (0.51 mm)
0.025 in. (0.64 mm)
0.009 in. (0.23 mm)
0.016 in. (0.41 mm)
55099
LEFT HAND NON-RATCHETING
Page 6B-35