'79 Evinrude 140 water pump kit installation?
It really isnt a big job. Make sure control is in neutral very important! Then removing the shift bolt under the bottom carb which is a 3/8 socket. I used a long extension with a universal and socket. On the bottom of the lower unit I remember there were 6 bolts for removal. Five visible bolts and one bolt is hidden under the trim tab which has to be removed to get to it. Mark the exact position of the trim tab, other wise your boat will be wandering left or right and you won't know why. The major issue I encountered was the installation of the unit back up and getting the water pick tube in upper housing aligned and at the same time the spline for the gear housing in the right position. Make sure the upper water pick up tube inserts into water pump top,,,Wheww,, try not to force the unit back up or if a second person is helping because you can bend the top water pick up tubing, I think mine was copper. Read the instructions that comes with the new pump if any, or before you disasemble old pump pay attention to how it looks and reverse the assembly. Important note is the small nylon bushing or key-way looking part which will be in the center of the impeller which is a solid fit and will only go in one way. There is a metal shell that fits over the impeller which is tricky getting it in position over the impeller . Then the black plastic housing goes on down over the long spline shaft and rubber type boot fits over outer hole which will seal pressure to the upper housing water tube.Tighten the 4 bolts. Make sure you put the o-ring in position also befor raising unit back up. Lift unit very careful. I also tilted my engine up 30 to 40 degrees to have less weight pushing down. It is a great help to be able to see up to where upper pick up tubing connect with seal on the top of the water pump housing. Good Luck Mate!
Clint 8)
