Mercury MerCruiser MCM 454 Mag MPI Service Manual page 334

SERVICE MANUAL NUMBER 23
4. Assemble drive on shaft assembly as follows:
Index
90-861326--1 MARCH 1999
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a. Lubricate drive end of shaft assembly with SAE 10W oil.
b. Place gear over shaft.
c. Slide drive assembly onto shaft with pinion facing outward.
d. Slide retainer onto shaft with cupped surface facing end of shaft (away from pinion).
e. Position snap ring on upper end of shaft and hold in place with block of wood. Strike
wood block with hammer, thus forcing snap ring over end of shaft. Slide snap ring
down into groove.
a - Snap Ring
b- Groove
c - Retainer
f. Assemble thrust collar on shaft with shoulder next to snap ring.
g. Position retainer and thrust collar next to snap ring. Then, using two pliers, grip
retainer and thrust collar and squeeze until snap ring is forced into retainer.
a - Retainer
b- Thrust Collar
c - Snap Ring
a
b
c
b
a
c
STARTING SYSTEM
72073
72074
Page 4A-43