1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 555Get this manual

1963-1973 Mercruiser all Engines and Drives Service Manual Books 1 and 2, Page 555

GEAR BACKLASH Model MerCruiser SO-SO- 90 MerCruiser I-A-B-C-12o-140-16o165Serial No_ 3443920 and Below MerCruiser 888 and
chart for specifications 5If bac klash is less than rCt:Juired add hims between rc'crsc gear thru washer and gear housingIf
backlash is mo re than reluiredremove shims 1Turn drive shaft clockwise several turns to align rollers in bearingsFasten
dial indicator to gear housing and Back lash Indicator Rod (C-91-53459) to drive shaft(Figure 6) 2Shift gear housing i.nto
full reverseTurn drive shait clockwise to ensure full engagement of sliding c1utch_ NOTE: On models MerCruiser and IA-IB-Ie
without E-Z shift, disregard Step and complete the following: Shift into full rever$(! and turn propeller shuft until sliding
dutch dog engages with reverse gear clutch dog_ Now shift to neutral gear and turn propeUer shuft in same directionApply