8-28Shimming (regular rotation model)012345678910AMeasuring the forward and reversegear backlash before disassembly1. Install the lower unit onto a repair stand.2. Remove the water pump assembly. See“Removing the water pump and shift rod”(8-6).3. Set the gear shift to the N position.4. Install the special service tools, and thentighten the center bolt d temporarily.5. Turn the lower unit so that the propellershaft is pointing downward.6. Turn the drive shaft 10 times or more toseat the taper roller bearing.7. Tighten the center bolt d to the specifiedtorque while holding the drive shaft not toturn.8. Turn the lower unit upright.9. Remove the cover e, and then install theouter plate cartridge f.Shift rod push arm a: 90890-06052Bearing housing puller claw L b:90890-06502Stopper guide plate c: 90890-06501Center bolt d: 90890-06504RN Fab cdbCenter bolt (shimming) d:5 N·m (0.5 kgf·m,3.7 ft·lb)def