Suzuki DF15 - Pinion Gear;Reverse Gear

LOWER UNIT 8-23
Optimum tooth contact
The optimum tooth contact is shown at right.
A shim adjustment may be necessary to obtain this contact pat-
tern.

Example (1)
Incorrect topside toe contact:
Correction measures:
• Decrease thickness of forward gear back-up shim.
• Slightly increase pinion gear back-up shim thickness.

Example (2)
Incorrect bottom side toe contact:
Correction measures:
• Increase thickness of forward gear back-up shim.
• Slightly decrease pinion gear back-up shim thickness.

PINION GEAR/REVERSE GEAR
1. Check the amount of backlash between the pinion gear and
forward gear. (See page 8-21.)
2. Install the propeller shaft/bearing housing assembly to the
gearcase.
 Propeller shaft bearing housing bolt:
8 N·m (0.8 kg-m, 6.0 lb-ft)
3. Check the amount of backlash by slightly rotating the drive-
shaft by hand.
4. Backlash should not be less than when checked step (1).
If backlash is less, reduce the reverse gear back-up shim
thickness.
Gear backlash should be checked when increasing or
decreasing shim thickness to adjust tooth contact.
Do not set tooth contact in this position (top side toe
contact). Damage and chipping of forward and pinion
gear may result.
Do not set tooth contact in this position (bottom side
toe contact). Chipping of pinion gear may result.
Optimum tooth contact
HEEL
Convex side
Approx. 1/3 of
tooth width
Approx.
1 mm
TOE
HEEL
TOE
EXAMPLE OF INCORRECT
Top side toe contact
Example (1)
EXAMPLE OF INCORRECT
Bottom side toe contact
HEEL
TOE
Example (2)