Yamaha Tracer MT09TRAH 2017 Service Manual page 346

ing side) surface with oil or grease.
TIP
Use the special tools and a press to press the
mechanical seal (housing side) straight in until it
touches the water pump housing.
Mechanical seal installer
90890-04078
Water pump seal installer
YM-33221-A
Middle driven shaft bearing driver
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
3. Install:
• Mechanical seal (impeller side) "1"
TIP
• 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.
4. Measure:
• Impeller shaft tilt
Out of specification  Repeat steps (3) and
1
New
1
6-11
(4).
ECA20340
NOTICE
Make sure the mechanical seal (impeller
side) is flush with the impeller.
Impeller shaft tilt limit
0.15 mm (0.006 in)
1. Straightedge
2. Impeller
WATER PUMP
1
2