Reassembly - Mercury MerCruiser MCM 454 Mag MPI Service Manual

SEAWATER COOLED MODELS

Reassembly

1. Apply a thin coat of Loctite Type 27131 to outside diameter of two new bearing housing
rear seals; then install seals in housing with seal lips facing impeller end. Press first seal
in until it contacts and second seal until flush with housing.
IMPORTANT: It is recommended that Shell Alvania No. 2 Grease be used when
packing seal and bearings in the following steps. If Shell Alvania No. 2 Grease is not
available, it is permissible to use Quicksilver 2-4-C With Teflon. However, Quicksilver
2-4-C Marine Lubricant With Teflon is not recommended for applications where
continuous high speed heavy-duty operation will be encountered.
2. Pack cavity between seals with Shell Alvania No. 2 Grease or substitute.
3. Using an arbor press and suitable tool, press ball bearings onto shaft until they seat.
Press on inner race of bearing only.
Index
Page 6A-16
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a - Outer (Water) Seal
b - Face of Housing
a - Bearings
SERVICE MANUAL NUMBER 23
a
b
a
72660
72663
90-861326--1 MARCH 1999