Mercury Optimax 115 Service Manual page 355

Section 6A – Right Hand Non-Ratcheting
Table of Contents
Gear Housing Specifications (Standard Rotation) 6A-1
Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Notes: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear Housing (Drive Shaft)(Standard Rotation)
Gear Housing (Prop Shaft)(Standard Rotation)
General Service Recommendations
Removal, Disassembly, Cleaning and Inspection
– Standard Rotation . . . . . . . . . . . . . . . . . . . . . . . . .
Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Draining and Inspecting Gear Housing
Lubricant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Water Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bearing Carrier and Propeller Shaft Removal
Shift Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Propeller Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clutch Actuator Rod . . . . . . . . . . . . . . . . . . . . . .
Pinion Gear and Driveshaft
Gear Housing Specifications (Standard Rotation)
Ratio
1.87:1
2.0:1
2.3:1
90-855347R1 JANUARY 1999
LOWER UNIT
.
6A-2
6A-5
. . 6A-6
. . . 6A-8
. . . . . . . . . . . 6A-10
6A-11
6A-11
6A-12
6A-13
. 6A-16
6A-18
6A-20
6A-22
. . . . . . . . . . . . . . . . 6A-22
Pinion Depth
0.025 in. (0.635 mm)
With Tool 91-12349A2
using Disc #2 and
Flat #7
0.025 in. (0.635 mm)
With Tool 91-12349A2
using Disc #2 and
Flat #7
0.025 in. (0.635 mm)
With Tool 91-12349A2
using Disc #2 and
Flat #7
Gearcase Lubricant Capacity
All Ratios
Forward Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reassembly and Installation Standard Rotation
Driveshaft Needle Bearing
Bearing Carrier . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forward Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forward Gear Bearing Race
Driveshaft and Pinion Gear
Pinion Gear Depth/Forward Gear
Backlash/Reverse Gear Backlash
Clutch Actuator Rod
Shift Shaft Bushing
Propeller Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . .
Water Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear Lubricant Filling Instructions
Installing Gear Housing to Driveshaft Housing 6A-45
Propeller Installation
Forward Gear
Backlash
0.018 in. to 0.027 in.
(0.460 mm to 0.686
mm) Pointer on line
mark #1
0.015 in. to 0.022 in.
(0.38 mm to 0.56 mm)
Pointer on line mark
#2
0.018 in. to 0.023 in.
(0.46 mm to 0.58 mm)
Pointer on line mark
#4
22.5 fl. oz. (665.4 ml)
RIGHT HAND NON-RATCHETING
6A-25
6A-26
. 6A-26
. . . . . . . . . . . . . . . . . 6A-26
6A-27
6A-30
. . . . . . . . . . . . . . . 6A-31
. . . . . . . . . . . . . . . . 6A-32
. . . . . . . . . . 6A-34
. . . . . . . . . . . . . . . . . . . . . . 6A-38
. . . . . . . . . . . . . . . . . . . . . . . 6A-38
6A-39
6A-42
. . . . . . . . . . 6A-45
. . . . . . . . . . . . . . . . . . . . . . 6A-46
Reverse Gear
Backlash
0.030 in. to 0.050 in.
(0.762 mm to 1.27 mm)
0.030 in. to 0.050 in.
(0.762 mm to 1.27 mm)
0.030 in. to 0.050 in.
(0.762 mm to 1.27 mm)
Page 6A-1
6
A