LOWR Lower unit6-55 69J1D113. Install the special service tool so that itpushes against the propeller shaft.NOTE:Tighten the universal puller or center boltwhile turning the drive shaft until the driveshaft can no longer be turned.4. Install the backlash indicator onto thedrive shaft (22.4 mm [0.88 in] in diame-ter), then the dial gauge onto the lowerunit.5. Set the lower unit upside down.NOTE:Install the dial gauge so that the plunger acontacts the mark b on the backlash indica-tor.6. Slowly turn the drive shaft clockwise andcounterclockwise and measure the back-lash when the drive shaft stops in eachdirection.7. Add or remove shim(s) if out of specifica-tion.M: Measurement8. Remove the special service tools fromthe propeller shaft.Bearing housing puller 1: YB-06207Universal puller 2: YB-06117ÈÈBacklash indicator gauge 3:YB-06265Magnetic plate 4: YB-07003Dial gauge 5: YU-03097Magnet flexible stand 6: YU-34481Forward gear backlash:0.35–0.70 mm (0.014–0.028 in)Forward gearbacklash Shim thicknessLess than0.35 mm (0.014 in)To be decreased by(0.53 – M) × 0.71More than0.70 mm (0.028 in)To be increased by(M – 0.53) × 0.71Available shim thicknesses:0.10, 0.12, 0.15, 0.18, 0.30, 0.40, and0.50 mm
