Mercury MerCruiser MCM 454 Mag MPI Service Manual page 843

SEAWATER COOLED MODELS
IMPORTANT: Be sure to support impeller end of pump shaft when installing pulley
hub in next step to prevent placing a load on bearings.
6. Apply Quicksilver Special Lubricant 101 to pump shaft. Using an arbor press and appro-
priate tool, press pulley hub onto pump shaft to dimension shown.
IMPORTANT: Pulley hub must be pressed onto shaft to exact dimension on pumps
with stamped steel mounting bracket as this establishes proper drive belt alignment.
7. Clamp bearing housing in a soft jaw vise with flange end up.
8. Coat quad ring seal with Quicksilver 2-4-C Marine Lubricant With Teflon and install into
groove in housing.
9. Place the wear plate over the bearing housing.
Index
Page 6A-18
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a - .260 Inch (6.6 mm)
a - Quad Ring Seal
a - Bearing Housing
b - Wear Plate
SERVICE MANUAL NUMBER 23
a
a
b
a
90-861326--1 MARCH 1999
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