[SpudRider]

Water Pump

The water pump circulates antifreeze throughout the engine cooling system. The RX3 water pump is powered by the engine's counter balancer. In the following image the connection for the water pump shaft on the engine counter balancer is shown inside the red oval.



The right end of the counter balancer protrudes through the right crankcase half, where it attaches to the water pump shaft. In the next image the counter balancer connection for the water pump shaft is shown inside the orange oval. The end of the counter balancer is supported in the right crankcase half by a sealed bearing.



The water pump shaft is supported inside the right crankcase cover by a bearing, an oil seal, and a water seal. Below is an image of the water pump shaft with its bearing and two seals.



Inside the right crankcase cover, the water pump impeller screws onto the end of the water pump shaft.