I changed mine this summer, piece of cake. The manual doesn’t give you any specific instruction for changing them. That diagram above is all you’ll need.
http://www.manualslib.com/manual/825...page=49#manual
• Use a wrench to turn the belt tensioner and remove the belt.
• Find the 3 bolts inside the water pump housing and use a socket wrench to remove them (I can’t remember what size or type, maybe 10mm?)
• Remove water pump housing
• Remove impeller behind housing. Note the direction of rotation. I used a needle nose pliers to remove mine, not too hard.
• Place new impeller and put everything back together
I think that’s it!