Mercury Optimax 115 Service Manual page 402

Section 6B – Left Hand Non-Ratcheting
Table of Contents
Gear Housing Specifications (Counter Rotation)
Special Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear Housing (Drive Shaft)(Counter Rotation)
Gear Housing (Prop Shaft)(Counter Rotation)
General Service Recommendations
Removal, Disassembly, Cleaning and Inspection of
Counter Rotation (Left Hand) Gear Housing
Water Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bearing Carrier and Propeller Shaft
Shift Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Propeller Shaft . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clutch Actuator Rod . . . . . . . . . . . . . . . . . . . . . .
Forward Gear and Bearing Adapter
Pinion Gear and Driveshaft
Reverse Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear Housing Specifications (Counter Rotation)
Ratio
1.87:1
2.0:1
90-855347R1 JANUARY 1999
LOWER UNIT
. . 6B-1
6B-2
. . . 6B-6
. . . . 6B-8
. . . . . . . . . . . 6B-11
. . . . 6B-12
6B-15
. . . . . . . . . 6B-17
6B-19
6B-21
6B-24
. . . . . . . . . 6B-24
. . . . . . . . . . . . . . . . 6B-26
6B-28
6B-30
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
Gearcase Lubricant Capacity
All Ratios
Reassembly and Installation of Counter Rotation
Gear Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driveshaft Needle Bearing
Bearing Carrier, Forward Gear and Bearing
Adaptor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reverse Gear Bearing Adaptor Assembly
Driveshaft and Pinion Gear
Pinion Gear Depth . . . . . . . . . . . . . . . . . . . . . . . .
Reverse Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forward Gear . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Propeller Shaft/Forward Gear Bearing
Adapter/Bearing Carrier
Water Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear Lubricant Filling Instructions
Installing Gear Housing to Driveshaft Housing 6B-55
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
22.5 fl. oz. (665.4 ml)
LEFT HAND NON-RATCHETING
6B-31
. . . . . . . . . . . . . . . . . 6B-31
6B-32
. . . 6B-35
. . . . . . . . . . . . . . . . 6B-37
6B-39
6B-41
6B-42
. . . . . . . . . . . . . . . . . . . 6B-45
6B-52
. . . . . . . . . . 6B-55
. . . . . . . . . . . . . . . . . . . . . . 6B-56
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)
Page 6B-1
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B