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Mercury MerCruiser MCM 502 Mag MPI

Mercury MerCruiser MCM 502 Mag MPI
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DRIVE SHAFT / PROPELLER SHAFT MODELS
SERVICE MANUAL NUMBER 23
90-861326--1 MARCH 1999 Page 8F-5
Drive Shaft Repair (MCM Sterndrive Models)
Removal
IMPORTANT: It is not necessary to remove the engine to service the drive shaft.
1. Remove top and bottom drive shaft shields around transom end and engine end of drive
shaft.
70245
a
b
c
d
e
Top Shield and Bottom Shield at Transom End (Engine End Similar)
a-Top Shield
b-Bottom Shield
c-Bolt 3/3-16 x 7/8 In. (22.2 mm); 4 Used
d-Nut 3/8 16: 4 Used
e-Screws (3 Used Hidden In This View)
2. Suitably mark drive shaft U-joint yokes/flange connections (engine output and drive unit
input) to assist in exact same positioning during assembly at engine and transom end.
70237
a
b
c
Engine End Shown (Transom End Similar)
a-Suitable Mark On Flange and Drive Shaft Connection
b-Extension Drive Shaft U-Joint Yoke
c-Flange
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