Yes it is me again with a anothewr questin. I am juyst refusing to give up on this enigine and nobody else can fix it near my location. I have two impellars with the water pump and they are both functioning as far as I can tell. One is ther anyway to test the water pump before putting it back on the engine. It turns with the drive shaft. And two. I removed one impellar because the other one is in ok shape. Anyways I sheared of the key and I replaced it but now I had it back on the boat and still not working. Can anyone help????? DO both impellars need to be on the same way?<br /><br />PLease need any help I can get.