- Lower gear case with hydraulic assist cylinder parts such as: forward gear, pinion, shift rod, shift cable, push
rod, shift plunger, detent spring, propeller shaft, and detent ball bearing will not interchange with 1982 to 1986 OMC stern
- If the 1982 complete outdrive with shift cable is used with the original 1978 thru 1981 throttle the
boat put in forward position will make boat go in reverse.
- Note on 1978 thru 1981 stern drives the engine should be
running before shifting outdrive, or the power assist servo assembly may be damaged.
- Boat engine with heavy loads
or lower compression due to motor wear ( 300 plus hrs. ) may want to use a lower gear ratio.
- Example : 230 hp. engine
with gear ratio of 21 / 16 but low compression may want to change to a gear ratio of 21 / 17 if repairing broken gears to
aid in getting the boat up on plain faster.