Service manual

Cooling System

Water pump

 Steps to disassemble a water pump

1. Take out the water pump cover.

2. Loosen the vane first. (Note: Left-handed screw for the vane)

3. Remove the water pump’s vane clockwise.

4. Remove the crankcase cover (right).

 In order to remove the vane easily, please loosen the impeller

first prior to removal of the crankcase cover (right).

5. Take out the water pump shaft and the washer.

6. Take out the mechanical seal and the SC seal.

 Installation

1. Install the SC seal with the specific fixture.

Spec.: 12- 24- 6

2. Please follow instructions for installation of any part for a high-precision mechanism such as the

mechanical seal. Notices and details for assembly of the mechanical seal are shown as follows.

Note: No dust, filth, scratch, or indentation remained on the high

precise seal, especially on the sliding surface. Use a piece of clean

soft cloth with MEK (butanone) dipped to wipe any filth.

 Use the specific tool for installation of the seal.

∆ Note: Replace both the mechanical seal and

the SC seal during maintenance.