Propeller Shaft Disassembly - Mercury 25 EFI Service Manual

Propeller Shaft Disassembly

1. Inspect the cam follower and ball bearing for wear and replace if worn or damaged.
2. Remove the clutch pin retainer spring from the clutch.
b
a
3. While pressing the cam follower against a hard surface, remove the clutch pin from the clutch/propeller shaft. Removal of
the clutch pin allows the clutch spring to discharge. Wear appropriate eye protection. Discard the clutch pin after removal.
The spring‑loaded clutch pin can disengage from the clutch and propel through the air, causing possible eye injury. Always
wear protective eye equipment when disassembling the clutch assembly.
b
a
4. Remove the spring and sliding clutch.
b
a
5. Replace the clutch if the jaws are rounded or chipped. Rounded jaws may be caused by the following:
a. Improper shift cable or linkage adjustment
b. Engine idle speed too high while shifting
c. Shifting too slowly from neutral into forward or reverse
b
6. Inspect the needle bearing surface of the propeller shaft for pitting and wear. Replace the shaft and bearing carrier if wear
or pitting is present.
7. Replace the propeller shaft if any of the following exist:
90-8M0105568 eng MARCH 2016
c
d
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a - Cam follower
b - Clutch pin
c
c - Punch
17048
e
c
d
a
a - Forward gear clutch jaws
b - Reverse gear clutch jaws
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a - Clutch
b - Retainer spring
c - Ball bearing
d - Cam follower
CAUTION
!
f g
h
16938
© 2016 Mercury Marine
Gear Housing
a - Clutch
b - Ring (faces forward gear)
c - Clutch spring
d - Clutch pin holder
e - Clutch pin
f - Clutch pin retainer spring
g - Ball bearing
h - Cam follower
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