SELVA MARINE Blue Whale 250 EFI Service Manual page 191

Lower unit (counter rotation model) .......................................................... 6-31
Removing the lower unit ..........................................................................6-34
Removing the water pump and shift rod.................................................. 6-35
Checking the water pump and shift rod ...................................................6-35
Propeller shaft housing (counter rotation model) .................................... 6-36
Removing the propeller shaft housing assembly..................................... 6-38
Disassembling the propeller shaft housing.............................................. 6-38
Checking the propeller shaft housing ......................................................6-39
Checking the propeller shaft.................................................................... 6-39
Assembling the propeller shaft housing...................................................6-40
Drive shaft and lower case (counter rotation model) ...............................6-43
Removing the drive shaft.........................................................................6-45
Disassembling the drive shaft housing ....................................................6-45
Disassembling the reverse gear ..............................................................6-45
Disassembling the lower case .................................................................6-45
Checking the pinion and reverse gear.....................................................6-46
Checking the bearing............................................................................... 6-46
Checking the drive shaft ..........................................................................6-46
Checking the lower case .........................................................................6-46
Assembling the lower case...................................................................... 6-46
Assembling the reverse gear................................................................... 6-47
Assembling the drive shaft housing......................................................... 6-47
Installing the drive shaft...........................................................................6-48
Installing the propeller shaft housing .......................................................6-49
Installing the water pump and shift rod....................................................6-49
Installing the lower unit ............................................................................6-51
Shimming (counter rotation model) ........................................................... 6-53
Shimming.................................................................................................6-54
Selecting the pinion shim.........................................................................6-54
Selecting the reverse gear shim ..............................................................6-55
Selecting the forward gear shim ..............................................................6-57
Selecting the propeller shaft shim ........................................................... 6-58
Backlash (counter rotation model)............................................................. 6-60
Measuring the forward and reverse gear backlash .................................6-60
6P23H11
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