achilles555
Petty Officer 2nd Class
- Joined
- Mar 16, 2008
- Messages
- 111
Hello all. Just changed the impeller, gaskets, and top of the housing on Water Pump of 1987 Mercury Classic Fifty 45 HP 4 cyl. (serial OB161091). I ran into a couple "hiccups" along the way, and need some advice. Here goes:
? After I completed installation and got everything back together, I tested my forward, reverse, and neutral, and here's what I found.
- Neutral works fine. Prop spins both directions freely
- Forward works fine. Prop spins clockwise correctly (makes a clicking noise when spinning), and won't turn in the opposite direction. No resistance.
- Reverse is a different story. The prop spins in reverse, but only with much force, and you can hear the pistons pumping and the compression sound in the chambers. It does not spin in reverse (counterclockwise) freely. Does this sound normal?
? My water pump does not have a water sleeve. The water tube runs straight into the top of the Pump Housing. Is this normal?
? The top of my Drive Shaft has a pin, and then just below the pin andthe top teeth, 2 rubber seals go over the end of the Drive Shaft, but not all the way down to the water pump. The are slotted to fit the top of the Drive Shaft. I took them off, but forgot to note how they go back. My manual is no help. I put the larger round seal on first, and the smaller graduated seal on top of that. Can anyone confirm that this is correct? What are those rubber seals for, anyway?
I guess that's it. I want to get this right before I take her out for the first time. Any help you guys can give would be much appreciated. AC.
? After I completed installation and got everything back together, I tested my forward, reverse, and neutral, and here's what I found.
- Neutral works fine. Prop spins both directions freely
- Forward works fine. Prop spins clockwise correctly (makes a clicking noise when spinning), and won't turn in the opposite direction. No resistance.
- Reverse is a different story. The prop spins in reverse, but only with much force, and you can hear the pistons pumping and the compression sound in the chambers. It does not spin in reverse (counterclockwise) freely. Does this sound normal?
? My water pump does not have a water sleeve. The water tube runs straight into the top of the Pump Housing. Is this normal?
? The top of my Drive Shaft has a pin, and then just below the pin andthe top teeth, 2 rubber seals go over the end of the Drive Shaft, but not all the way down to the water pump. The are slotted to fit the top of the Drive Shaft. I took them off, but forgot to note how they go back. My manual is no help. I put the larger round seal on first, and the smaller graduated seal on top of that. Can anyone confirm that this is correct? What are those rubber seals for, anyway?
I guess that's it. I want to get this right before I take her out for the first time. Any help you guys can give would be much appreciated. AC.