Mercury 45 Jet 50-55 - Propeller Shaft Disassembly

6A-10 - LOWER UNIT 90-817643R1 DECEMBER 1996
Propeller Shaft Disassembly
1. Remove spring (a). Push out cross pin (e).
51265
a
51268
b
c
d
e
a - Spring
b - Cam Follower
c - Apply Pressure as Shown
d - Punch
e - Cross Pin
2. Replace cam follower if worn or pitted on either end.
3. Replace sliding clutch if jaws are rounded or chipped.
Rounded jaws indicate the following:
a. Improper shift cable adjustment.
b. Engine idle speed too high while shifting.
c. Shifting too slowly.
51265
a
b
c
d
e
e
a - Cam Follower
b - Guide Block
c - Spring
d - Sliding Clutch
e - Jaws
4. Check bearing surfaces of propeller shaft. If shaft is
worn/pitted, replace shaft and corresponding bearing.
5. Replace propeller shaft if:
a. Splines are twisted or worn.
b. Oil seal surface (b) is grooved in excess of 0.005
in. (0.12mm).
c. Shaft has a noticeable “wobble” or is bent more
than 0.006 in. (.152 mm). Check with a dial indica-
tor and V-blocks.
51139
a
b
b
c
c
a - “Vee” Blocks
b - Bearing Surfaces
c - Check with Dial Indicator Here