6-14
WATER PUMP
ECA20330
Never lubricate the mechanical seal (hous-
ing side) surface with oil or grease.
Use the special tools and a press to press the
mechanical seal (housing side) straight in until it
touches the water pump housing.
3. Install:
• Mechanical seal (impeller side) “1”
ECA20340
Make sure the mechanical seal (impeller
side) is flush with the impeller.
• Before installing the mechanical seal (impeller
side), apply tap water or coolant onto its outer
surface.
• If the top of the mechanical seal is dirty, clean
it.
Mechanical seal installer
90890-04078
Water pump seal installer
YM-33221-A
Middle driven shaft bearing driv-
er
90890-04058
Middle drive bearing installer
40 & 50 mm
YM-04058
2. Water pump housing
3. Mechanical seal installer
4. Middle driven shaft bearing driver
A. Push down
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