I am hoping you can help. I have an 02 500HO. I was leaking coolant out the weephole, so I went ahead and changed out the mechanical seal. Filled it back with antifreeze/water and thought i was done. Well, during idle, everything is great, fan comes on at 190 and turns off at 168 according to the guage. Problem is when I rev it up I get a stream of coolant shooting up through the weephole in the overflow tank. After about 20 minutes of riding it starts to overheat cause of coolant loss. Is this from air in the system, and if so, how do i get it out? any thoughts or comments would sure be great.

Ron

 

Sounds like the water pump seal has joined the "choir invisible", time for a new pump.