Bearing Support Repair (Mcm Sterndrive Models); Removal; Disassembly - Mercury MerCruiser MCM 454 Mag MPI Service Manual

DRIVE SHAFT / PROPELLER SHAFT MODELS

Bearing Support Repair (MCM Sterndrive Models)

Removal

IMPORTANT: It is not necessary to remove the engine to service the drive shaft and/or
bearing support.
If bearing support is removed, you must remove the sterndrive unit so you can
properly align drive unit U-joint centerline with extension drive shaft U-joint center-
line. Lack of alignment will cause a severe vibration problem.
1. Remove drive shaft as previously outlined.
2. Remove sterndrive unit (refer to appropriate Stern Drive Service Manual).
3. Remove bearing support and retain hardware.

Disassembly

1. Remove snap ring, then remove input shaft.
2. Remove larger snap ring.
3. Using Quicksilver Slide Hammer Puller, remove ball bearing.
4. Remove oil seal.
5. If required, remove plug from end of input shaft.
6. Clean and inspect all parts.
Index
Page 8F-10
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a - Bolt, Bearing Support (2)
b - Flat Washer (2)
c - Spherical Washer (4)
d - Bearing Support (Tailstock)
e - Nut (2)
CAUTION
a
b
c
d c
e
SERVICE MANUAL NUMBER 23
75279
90-861326--1 MARCH 1999