I recently installed the Flow Kooler water pump on my Disco 2 and noticed the fan is moving the grass underneath when it runs now. I also changed the fan clutch during the process. Do the flow Kooler water pumps have a shorter shaft that sets the fan closer to the engine?

 

i didn't notice a difference in the shaft length (there's a dangerous statement) when i installed mine. perhaps your clutch was shot and not engaging.

 

I'd put the difference on the new clutch as well.

 

@alw85 Your old fan clutch must have been shot mine was like a leaf blower on startup, that did not change when I put the Flowcooler pump in.