BRP Johnson 4HP - Gearcase

8-1
GEARCASE
CONTENTS
GEARCASE
CONTENTS
REMOVAL AND DISASSEMBLY ............................................................................................................ 8-2
DISASSEMBLY OF PROPELLER SHAFT COMPONENTS .......................................................................... 8-5
INSPECTION ............................................................................................................................................ 8-6
PROPELLER ............................................................................................................................................ 8-6
GEARCASE .............................................................................................................................................. 8-6
GEAR ........................................................................................................................................................ 8-6
PROPELLER SHAFT COMPONENTS .................................................................................................... 8-7
PROPELLER SHAFT BEARING HOUSING ............................................................................................ 8-7
SHIFT ROD AND SHIFT CAM ................................................................................................................. 8-8
WATER PUMP AND RELATED ITEMS ................................................................................................... 8-8
DRIVESHAFT SUPPORT HOUSING ....................................................................................................... 8-8
DRIVESHAFT ........................................................................................................................................... 8-8
REASSEMBLY AND INSTALLATION ..................................................................................................... 8-9
FORWARD GEAR .................................................................................................................................. 8-11
PINION GEAR ........................................................................................................................................ 8-11
DRIVESHAFT / DRIVESHAFT SUPPORT HOUSING ........................................................................... 8-11
SHIFT ROD ASSEMBLY ........................................................................................................................ 8-12
WATER PUMP AND RELATED ITEMS ................................................................................................. 8-12
PROPELLER SHAFT COMPONENTS .................................................................................................. 8-13
LEAKAGE CHECK ................................................................................................................................. 8-14
PROPELLER .......................................................................................................................................... 8-14
LOWER UNIT INSTALLATION .............................................................................................................. 8-15
GEAR OIL ............................................................................................................................................... 8-15
CLUTCH ADJUSTMENT ........................................................................................................................ 8-16
LOWER UNIT GEARS-SHIMMING AND ADJUSTMENT ...................................................................... 8-17
FORWARD GEAR / PINION GEAR SHIM ADJUSTMENT .......................................................................... 8-18
CHECKING REVERSE GEAR ............................................................................................................... 8-21
CHECKING PROPELLER SHAFT THRUST PLAY ................................................................................... 8-21
NOTES .................................................................................................................................................... 8-22