69D5G11987654321LOWRLOWRLower unitSpecial service tools ................................................................................... 6-1Lower unit .................................................................................................... 6-5Removing the lower unit .......................................................................... 6-9Removing the water pump ...................................................................... 6-9Removing the oil seal housing and shift rod ........................................... 6-9Checking the water pump and shift rod ................................................. 6-10Disassembling the oil seal housing ....................................................... 6-10Assembling the oil seal housing ............................................................ 6-10Propeller shaft housing ............................................................................. 6-11Removing the propeller shaft housing assembly ................................... 6-13Disassembling the propeller shaft assembly ......................................... 6-13Disassembling the propeller shaft housing ............................................ 6-13Checking the propeller shaft housing .................................................... 6-14Checking the propeller shaft .................................................................. 6-14Assembling the propeller shaft assembly .............................................. 6-14Assembling the propeller shaft housing ................................................ 6-15Drive shaft and lower case ....................................................................... 6-16Removing the drive shaft ....................................................................... 6-17Disassembling the drive shaft ............................................................... 6-17Disassembling the forward gear ............................................................ 6-17Disassembling the lower case ............................................................... 6-17Checking the pinion and forward gear ................................................... 6-18Checking the bearings ........................................................................... 6-18Checking the drive shaft ........................................................................ 6-18Checking the lower case ....................................................................... 6-18Assembling the lower case .................................................................... 6-18Assembling the forward gear ................................................................. 6-19Assembling the drive shaft .................................................................... 6-19Installing the drive shaft ..........................................................................6-19Installing the shift rod and oil seal housing ........................................... 6-20Installing the propeller shaft housing ..................................................... 6-20Installing the water pump ...................................................................... 6-22Installing the lower unit .......................................................................... 6-22Shimming .................................................................................................... 6-24Shimming ............................................................................................... 6-25Selecting the pinion shims ..................................................................... 6-25Selecting the forward gear shims .......................................................... 6-26Selecting the reverse gear shims .......................................................... 6-27Backlash ..................................................................................................... 6-28Measuring the forward and reverse gear backlash ............................... 6-28