Backlash Measurement (Ft9.9D) - Yamaha F15A Service Manual

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BACKLASH MEASUREMENT (FT9.9D)

BACKLASH MEASUREMENT (FT9.9D)
NOTE:
9 Do not install the water pump compo-
nents when measuring the backlash.
9 Measure both the forward and reverse
gear backlashes.
9 If both the forward and reverse gear back-
lashes are larger than specification, the
pinion gear may be too high.
9 If both the forward and reverse gear back-
lashes are smaller than specification, the
pinion gear may be too low.
9 If either of these conditions exist, then
check the pinion gear shim(s) selection.
Forward gear
1. Measure:
9 Forward gear backlash
Out of specification → Adjust.
Forward gear backlash:
0.20 ~ 1.15 mm (0.008 ~ 0.045 in)
Measurement steps:
8 Position the bearing housing puller
so that it pushes against the propeller
shaft.
Bearing housing puller claw:
90890-06503
Stopper guide plate:
90890-06501
Center bolt:
90890-06504
8 Set the lower unit upside down.
Center bolt:
5 Nm (0.5 m•kg, 3.6 ft•lb)
6-47
E