Mitsubishi 6M70 Workshop Manual page 269

Installation procedure
Installation: Bearing unit
• Install the bearing unit by ramming down its outer race with the
press until the end face A of the outer race and the end face B of
water pump case meet flush.
CAUTION
• Before installing, check the rotating condition of the bear-
ing unit.
• When installing, do not press the shaft end of the bearing
unit.
Installation: Wire
• Align the groove on the water pump case side with the groove
on the bearing side at the wire inlet before inserting the wire into
the water pump case.
Installation: Unit seal
• Using , install the unit seal until it securely contacts the wa-
ter pump case.
Installation: Impeller
CAUTION
• Before installing an impeller, make sure that there is no or
only one punch mark in the shown location on the impeller.
Make an additional punch mark on the flange to indicate
that it undergoes the disassembly and reassembly process
you are doing now.
• Punch mark(s) indicate the number of times the impeller
was disassembled and reassembled in the past. If there are
two marks, the impeller must be replaced.
• With a press installed against the impeller end face, press fit the
impeller onto the bearing unit until the impeller end face is flush
with the shaft end face of the bearing unit.
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