General
1-35
Hold the housing with the bearing
side down and tap the bearing out.
Repeat for all bearings in the
housing.
• Before heating the bearing housing,
place the new bearing in a freezer if
possible. Chilling a bearing slightly
reduces its outside diameter while
the heated bearing housing
assembly is slightly larger due to
heat expansion. This makes
bearing installation easier.
Note:
Always install bearings with the
manufacturer’s mark or number facing
outward.
• While the housing is still hot. Install
the new bearing(s) into the housing.
Install the bearings by hand, if
possible. If necessary, lightly tap
the bearing(s) into the housing with
a driver placed on the outer bearing
race (Figure 43). Do not install new
bearings by driving on the inner-
bearing race. Install the bearing(s)
until it seats completely.
Seal Replacement
Seals (Figure 47) contain oil, water,
grease or combustion gasses in a housing
or shaft.
Improperly removing a seal can damage
the housing or shaft. Improperly installing
the seal can damage the seat.
Note the following:
1. Prying is generally the easiest and
most effective method of removing
a seal from the housing. However,
Always place a rag underneath the
pry tool to prevent damage to the
housing. Note the seal’s installed
depth or if it is installed flush.
2. Pack waterproof grease in the seal
lips before the seal is installed.
3. In most cases, install seals with the
manufacturer’s numbers or marks
facing out.
4. Install seals with a socket or driver
placed on the outside of the seal as
shown in. Drive the seal squarely
into the housing until it is to the
correct depth or flush as noted
during removal. Never install a seal
by hitting against the top of it with a
hammer.
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