Water Pump - Test
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Engine surfaces and fluids can be hot. A running engine will have moving belts exposed at the front of the engine (rear of bus). These hazards can result in personal injury or death. stop the engine while connecting test equipment and work carefully around a running engine. Do not allow tools or test equipment to protrude or vibrate into the path of rotating belts. |
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| Required Tools | ||
| Part Number | Part Name | Quantity |
| 6V-7775 | Air Pressure Gauge | 1 |
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| Illustration 1 | g00945097 |
(1) Port | |
Perform the following procedure in order to determine if the water pump is operating correctly:
- Remove the plug from port (1).
- Install the 6V-7775 Air Pressure Gauge in port (1) .
- Start the engine. Run the engine until the coolant is at operating temperature.
- Note the water pump pressure. The water pump pressure should be 100 to 125 kPa (15 to 18 psi).
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