6
A
RIGHT HAND NON-RATCHETING
90-884294 OCTOBER 2001 Page 6A-1
LOWER UNIT
Section 6A – Right Hand Non-Ratcheting
Table of Contents
Gear Housing Specifications (Standard Rotation) 6A-1.
Special Tools 6A-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear Housing (Drive Shaft)(Standard Rotation) 6A-6. .
Gear Housing (Prop Shaft)(Standard Rotation) 6A-8. . .
General Service Recommendations 6A-10. . . . . . . . . . .
Removal, Disassembly, Cleaning and Inspection
– Standard Rotation 6A-11. . . . . . . . . . . . . . . . . . . . . . . . .
Removal 6A-11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Draining and Inspecting Gear Housing
Lubricant 6A-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Water Pump 6A-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Seal Carrier Assembly 6A-16. . . . . . . . . . . . . . . . .
Bearing Carrier and Propeller Shaft Removal 6A-18
Drive Shaft Assembly 6A-27. . . . . . . . . . . . . . . . . . . . .
Propeller Shaft Assembly and Forward Gear
Bearing Cup 6A-32. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forward Gear Assembly 6A-35. . . . . . . . . . . . . . . . . . .
Shift Spool Assembly 6A-38. . . . . . . . . . . . . . . . . . . . .
Propeller Shaft Assembly 6A-40. . . . . . . . . . . . . . . . . .
Shift Shaft Assembly 6A-41. . . . . . . . . . . . . . . . . . . . . .
Pinion Bearing 6A-44. . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear Housing Reassembly 6A-45. . . . . . . . . . . . . . . . . . .
Gear Housing Inspection 6A-45. . . . . . . . . . . . . . . . . .
Pinion Bearing 6A-46. . . . . . . . . . . . . . . . . . . . . . . . . . .
Forward Gear Bearing Cup 6A-47. . . . . . . . . . . . . . . .
Shift Shaft Assembly 6A-48. . . . . . . . . . . . . . . . . . . . . .
Propeller Shaft Assembly 6A-50. . . . . . . . . . . . . . . . . .
Drive Shaft and Pinion Gear 6A-51. . . . . . . . . . . . . . .
Gear Location/Backlashes/Checking and
Adjustment 6A-54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive Shaft - Bearing Preload Tool 6A-54. . . . . . . . . .
Pinion Gear Location 6A-55. . . . . . . . . . . . . . . . . . . . .
Bearing Carrier Assembly 6A-58. . . . . . . . . . . . . . . . .
Forward Gear Backlash 6A-60. . . . . . . . . . . . . . . . . . .
Reverse Gear Backlash 6A-61. . . . . . . . . . . . . . . . . . .
Drive Shaft - Bearing Preload Tool 6A-63. . . . . . . . . .
Bearing Carrier Assembly 6A-64. . . . . . . . . . . . . . . . . . . .
Final Installation 6A-64. . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Seal Carrier Assembly 6A-67. . . . . . . . . . . . . . . . . . . .
Installation 6A-67. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Water Pump Assembly 6A-67. . . . . . . . . . . . . . . . . . . . . . .
Installation 6A-67. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gear Lubricant Filling Instructions 6A-70. . . . . . . . . .
Installing Gear Housing to Driveshaft Housing 6A-70
Propeller Installation 6A-71. . . . . . . . . . . . . . . . . . . . . .
Speedometer Tube Installation 6A-73. . . . . . . . . . . . .
Gear Housing Specifications (Standard Rotation)
Ratio Pinion Depth
Forward Gear
Backlash
Reverse Gear
Backlash
1.75:1
1.87:1
0.025 in. (0.635 mm) With Tool
91-12349A2 using Disc #2 and
Flat #4
0.017 in. to 0.028 in. (0.431 mm
to 0.711 mm) Pointer on line
mark #1
0.030 in. to 0.050 in.
(0.762 mm to 1.27 mm)
Gearcase Lubricant Capacity
All Ratios 27.0 fl. oz. (798.0 ml)
Gearcase Pressure Check
Gearcase without Oil Gearcase should hold 15 psi for 5 minutes without leakage
Gear Ratio Teeth on Pinion Gear Teeth on Forward and Reverse
Gear
1.75:1 12 21
1.87:1 15 28
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