But again since you will be looking at the bottom side of the water pump you will be seeing it backwards.
Yamaha water pump impeller direction.
Rotate the drive shaft clockwise and at the same time push down on the pump cover to ease entry of the impeller into the cover.
Remember the direction of the impeller vanes if any were left on when you initially lifted the housing off.
Shrouded impellers turn so they scoop the fluid.
I need to take it apart and turn it clockwise.
If you do this correctly the arms of the impeller will curve to the left.
Be sure the o rings stay in place.
I applied some grease to the slots for the o rings to help hold them in place.
While trying to get this on i flipped the impeller.
Learn from my mistake and check.
If you did not notice they were all missing or you forgot then remember that all of these motors rotate clockwise.
You will turn the driveshaft clockwise for standard right hand rotation models.
We recommend you buy the complete yamaha water pump repair kit as it includes the various gaskets o rings and other parts that usually need replacing when you repair the water pump it s much cheaper to buy the complete kit than it is to buy the impeller gaskets and o rings separately.
For these reasons it s best to replace your water pump impeller or the entire water pump assembly when servicing these items and never rotate your outboard s crankshaft or driveshaft in a counterclockwise direction.
Apply thin coat of multipupose lube to inside of the pump cover.
Slide the assembled water pump down over the diveshaft and water pump studs.
Install water pump housing turn driveshaft as you place the housing on top of the impeller.
If this water is not.
Exceptions are pumps with straight vane impellers vanes perpendicular to the shaft and shrouded impellers.
Impellers must turn in a direction so that the fluid is pushed not scooped through the pump see sample drawing below.
Clean the water pump housing.
The rubber impeller is located inside a stainless steel cup and uses the water for lubrication.
This needs to be fixed.
Straight vane impellers function in either direction.
