Originally Posted by lockieboi
Just replaced the impeller on my OB, reassembled and guess what.
This is my first impeller change so bear with me.
When I fitted the impeller I noticed that it was not tight on the drive shaft and if I turn the drive shaft by hand the impeller does not move.
The impeller is identical to the one removed.
There is a grove on the impeller and the drive shaft so I wonder if these should line up or if I'm missing a part.
Any help greatly appreciated.
there should be a small metal tab that fits in the notch of the shaft and the water pump, making the pump rotate.