Mitsubishi S12A2 User Manual

10-37
Chapter 10 COOLING SYSTEM
2.12.1 Unit Seal - Install
(1) Apply sealant (ThreeBond 1102) to the circumference
of the unit seal.
(2) Press-in the unit seal into water pump case with unit
seal installer.
Note: Replace the unit seal with a new one whenever it is re-
moved from water pump case.
Unit Seal - Install
2.12.2 Water pump Shaft - Install
(1) Press-in the water pump shaft slowly into pump case
until the end face of ball bearing comes into contact
with pump case.
(2) Install the spacer to water pump shaft.
(3) Apply grease on ball bearing rolling faces.
(4) Fill grease of 31g [1.09 oz] into space among spacer,
ball bearing and pump case.
Water pump Shaft - Install
2.12.3 Ball Bearing - Install
(1) Apply grease on ball bearing rolling faces and press fit
the bearing to Water pump shaft.
Note: Place the sealed plate outside to fit the outer bearing to
the shaft.
(2) Securely install the snap ring to pump case groove.
Ball Bearing - Install
Unit seal
11.3 ± 0.3 mm
[0.445 ± 0.012 in.]
Apply sealant
(ThreeBond 1102)
to outer peripheral
surface.
Be careful not to damage the water pump shaft by oil
seal and unit seal when press-fitting the water pump
shaft.
Apply grease to
ball bearing rolling
portion.
Water pump shaft
Fill with 31 grams
grease.
Spacer
Shield plate
portion faces
inward (down).
Apply grease to
ball bearing rolling
portion.
Water pump shaft
Snap ring
Shield plate portion
faces outward (up).

Mitsubishi S12A2 Specifications

General

Brand	Mitsubishi
Model	S12A2
Category	Engine
Language	English