- Oil seal "1" New (into the water pump housing "2")
Installed depth "a" 17.2 mm (0.68 in).
- Before installing the oil seal, apply tap water or coolant onto its out surface.
- Install the oil seal with a socket that matches its outside diameter.
![](https://motoinstruction.ru/img/yamaha/20/126831.jpg)
2. Install:
- Water pump seal "1"
Notice: Never lubricate the water pump seal surface with oil or grease.
- Install the water pump seal "1" with the special tools.
Mechanical seal installer 90890-04132.
Water pump seal installer YM-33221-A.
Middle driven shaft bearing driver 90890-04058.
Bearing driver 40 mm YM-04058.
![](https://motoinstruction.ru/img/yamaha/20/126832.jpg)
2. Water pump housing
3. Mechanical seal installer
4. Middle driven shaft bearing driver
A. Push down
3. Install:
- Rubber damper holder "1" New
- Rubber damper "2" New
Before installing the rubber damper, apply tap water or coolant onto its outer surface.
![](https://motoinstruction.ru/img/yamaha/20/126833.jpg)
4. Measure:
- Impeller shaft tilt
Out of specification → Repeat steps (3) and (4).
Notice: Make sure the rubber damper and rubber damper holder are flush with the impeller.
Impeller shaft tilt limit 0.15 mm (0.006 in)
![](https://motoinstruction.ru/img/yamaha/20/126834.jpg)
1. Straightedge; 2. Impeller