67C3K11LOWR123456789Lower unitLower unit ....................................................................................................... 6-1Removing the lower unit ............................................................................ 6-4Removing the water pump......................................................................... 6-5Checking the water pump.......................................................................... 6-5Propeller shaft housing ................................................................................. 6-6Removing the propeller shaft housing assembly....................................... 6-7Disassembling the propeller shaft assembly ............................................. 6-7Disassembling the propeller shaft housing assembly................................ 6-7Checking the propeller shaft housing ........................................................ 6-8Checking the propeller shaft...................................................................... 6-8Assembling the propeller shaft assembly .................................................. 6-8Assembling the propeller shaft housing assembly .................................... 6-9Drive shaft and lower case.......................................................................... 6-11Removing the drive shaft, oil seal housing, and shift rod ........................ 6-13Disassembling the oil seal housing ......................................................... 6-13Disassembling the forward gear .............................................................. 6-13Disassembling the lower case ................................................................. 6-14Checking the pinion and forward gear..................................................... 6-14Checking the bearing............................................................................... 6-14Checking the drive shaft .......................................................................... 6-14Checking the shift rod.............................................................................. 6-15Checking the lower case ......................................................................... 6-15Assembling the lower case...................................................................... 6-15Assembling the forward gear................................................................... 6-16Assembling the oil seal housing .............................................................. 6-16Assembling the drive shaft ...................................................................... 6-16Installing the shift rod, oil seal housing, and drive shaft .......................... 6-17Installing the propeller shaft housing assembly....................................... 6-17Installing the water pump......................................................................... 6-18Installing the lower unit ............................................................................ 6-19Shimming...................................................................................................... 6-21Shimming................................................................................................. 6-22Selecting the pinion shim......................................................................... 6-22Selecting the forward gear shim .............................................................. 6-23Selecting the reverse gear shim .............................................................. 6-24Backlash ....................................................................................................... 6-26Measuring the forward and reverse gear backlash ................................. 6-26