Mercury 4 SERIES

GEAR HOUSING
Page 6-18 90-857138R1 MAY 2000
Lower Drive Shaft Needle Bearing
1. Drive lower drive shaft needle bearing from gear housing, using bearing removal/instal-
lation tool.
91-17351
a
b
c
d
56427
a - Lower Drive Shaft Needle Bearing
b - Collar: Installed on End of Driver Rod
c - Driver Rod
d - Guide Bushing: Seated in Water Pump Base Cavity of Gear Housing
Zinc Anode
1. Remove and replace zinc anode if more than 50% consumed.
NOTE: 2000 model year outboards have rectangular style zinc anode.
a
56428
57757
b
a - Zinc Anode (1999)
b - Rectangular Style Zinc Anode (2000 and Later)