8-22 LOWER UNIT
Checking and adjusting tooth contact pattern
(Pinion and forward gear)
1. To assess tooth contact, apply a light coat of Prussian Blue
on the convex surface of forward gear.
2. Install propeller shaft and housing assembly (minus reverse
gear and internal components).
Propeller shaft bearing housing bolt:
8 N·m (0.8 kg-m, 6.0 lb-ft)
3. Push propeller shaft inward and hold in position.
4. Rotate the driveshaft clockwise 5 – 6 times by hand.
5. Carefully pull out propeller shaft and housing to check tooth
contact pattern.
Concave side
Convex side
Heel
Tooth top
Tooth bottom
Toe
TOOTH
CONTACT
PATTERN
Tooth width
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