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Mercury 4 SERIES User Manual

Mercury 4 SERIES
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GEAR HOUSING
Page 6-34 90-857138R1 MAY 2000
IMPORTANT: Both gear housing and outboard shift lever must be shifted into reverse
when installing gear housing to enable the shift shaft to align with clamp.
3. Shift outboard shift lever to “Reverse.”
4. While rotating propeller shaft, push down on shift shaft to place gear housing into “Re-
verse” gear. Propeller shaft will not rotate more than a few degrees in either direction
when in reverse.
5. Lubricate splines of drive shaft with 2-4-C w/Teflon Marine Lubricant.
6. Guide gear housing into driveshaft housing while aligning the following.
a. Driveshaft and splines into upper drive shaft seal guide tube and into crankshaft
splines. It may be necessary to rotate flywheel to align splines.
b. Shift shaft with hole in clamp located on end of upper shift shaft and out thru grommet
in driveshaft housing which operates reverse lock hook.
c. Seal of water pump housing with water tube.
7. Secure gear housing to driveshaft housing using 2 bolts and flat washers. Torque bolts
to 70 lb-in. (8 Nm).
a
b
c
d
d
56306
56393
a - Drive Shaft
b - Shift Shaft
c - Water Tube
d - Bolts (2)
8. Secure upper shift shaft and lower shift shaft together using clamp. Tighten bolt secure-
ly.
9. Check shift operation for gearcase neutral and shift handle neutral to be in sync. Read-
just shift handle clamp if necessary.
10. Install plug.
a
a
b
b
c
56392
56391
a - Clamp
b - Bolt
c - Plug

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Mercury 4 SERIES Specifications

General IconGeneral
BrandMercury
Model4 SERIES
CategoryOutboard Motor
LanguageEnglish

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