Propeller Shaft Disassembly - Mercury FourStroke 2.5 Service Manual

NOTE: The propeller shaft seal cannot be replaced without removing the carrier bearing. Removal of the bearing may
damage the bearing. Do not remove the bearing unless necessary and at that time, replace the propeller shaft seal.
Remove the seal with a punch being careful not to scar the carrier seal surface. If the surface is damaged, the carrier must
be replaced.
4. Remove the carrier O‑ring and inspect the O‑ring for cuts or abrasions. Replace the O‑ring as required.
a

Propeller Shaft Disassembly

1. Remove the cam follower and inspect both ends for wear. If the cam follower is worn or pitted, replace the follower.
2. Compress the spring with an awl or a small screwdriver and remove the clutch. Replace the clutch if the teeth are rounded,
chipped, or if wear is evident from the cam follower or the spring. Rounded jaws indicate the following:
• Improper shift cable adjustment
• Engine idle speed too high
• Shifting too slowly
a
a
3. Replace the propeller shaft if:
• Oil seal surface is grooved
90-8M0065421 NOVEMBER 2012
a -
a
25552
25554
c
c
b
Seal
a - O‑ring
a - Cam follower
b - Clutch
c - Spring
25556
Gear Housing
Page 6A-17