Pee Stream???

[SC1650]

Guys,

This is on a 7.5 Mercury. 1980/81 Model. I got the impeller corrected and I took the motor to the lake to test it. I got a very weak stream, kind of a spray stream. Came back home, took lower unit off again and checked the distance from the end of the tube to the flat where the lower unit bolts up. I then measured flat area on the lower unit to the area where the tube inserts into the lower unit. There was a 1/4 inch discrepancy. I took the tube out and straightened it some to try to get the tube to seat into the lower unit. Measured it afterward and found that I had gained 1/2 inch so I felt that was enough to get it pumping. I took it to the lake again. Started it up and on start up I got a real weak stream again. If I lowered the RPM's on the engine the stream would pick up a little bit. I then put the unit in gear, both forward and reverse. It started to pee a real stream for a few seconds and then faded somewhat. It did it in both gears. What would cause this. I did put some vaseline on the vanes for the impeller but I can't imagine that this would stop the water from pumping. Is it possible that the vaseline is clogging the tubes and pea stream exit enough to cause this??? Any ideas?????

Steve

 

[BassnKY]

Re: Pee Stream???

The tube should be shorter. There should be a short section of rubber tube that the tube slides into. Are you sure you are getting the tube into the rubber? Or, is it missing This helps seal the tube. If you are not, it would explain the weak stream. I believe there is one at each end.

 

[SC1650]

Re: Pee Stream???

The tube should be shorter. There should be a short section of rubber tube that the tube slides into. Are you sure you are getting the tube into the rubber? Or, is it missing This helps seal the tube. If you are not, it would explain the weak stream. I believe there is one at each end.

I know I have the tube in both ends with the rubber grommets (I'll call them grommets for lack of a better word.) The stream is weak sometimes and strong other times. That is what makes me think I may have put a little to much vaseline into the impeller area. I may have to pull it apart again and wipe all of that out. Then I'll try to blow out the passages with an air gun.

Steve

 

[Mi duckdown]

Re: Pee Stream???

What did the old impellar look like when you first opened it up? All the vanes intacked. Did you install the keyway between the shaft and impellar?
The vaseline should not hurt unless you goobed the heck out of it.
Did you install the impellar in the right flow direction? I think it is clockwise, looking down on the shaft?

 

[SC1650]

Re: Pee Stream???

What did the old impellar look like when you first opened it up? All the vanes intacked. Did you install the keyway between the shaft and impellar?
The vaseline should not hurt unless you goobed the heck out of it.
Did you install the impellar in the right flow direction? I think it is clockwise, looking down on the shaft?

The old impeller was all intact. The key is in the keyway. I had to reopen the lower unit because I had the impeller fins going the wrong way but got that corrected. It was simply hard from sitting for a period of years. I did put more vaseline than I probably should have into the impeller area. I am just wondering if I run it long enough will the vaseline melt from the heat and spew its way out thought the pee hole. If not, then I'll have to take the lower unit off again and clean the impeller area along with blowing out the passages to remove all the vaseline.

 

[ENSIGN]

Re: Pee Stream???

Take a stiff piece of wire and clean out the pee hole and hose.If there's a thermostat there will be less of a stream until it opens.

 

[SC1650]

Re: Pee Stream???

Take a stiff piece of wire and clean out the pee hole and hose.If there's a thermostat there will be less of a stream until it opens.

I do have a thermostat. I replaced it. I can take the housing off of the thermostat, which I did, and I blew air through the system. The hose and pee hole were clean. I am thinking that the vaseline should liquify when the motor gets hot enough and then should simply exit via the pee stream. Hopefully!!!!!!!!

Steve

 

[fishin98]

Re: Pee Stream???

sounds like the impeller is in backwards

 

[SC1650]

Re: Pee Stream???

sounds like the impeller is in backwards

Nope, got that corrected. It was in with the fins going the wrong direction and I had to straighten it out. I have had the lower unit off of this thing probably 15 times by now.

 

[SC1650]

Re: Pee Stream???

Take a stiff piece of wire and clean out the pee hole and hose.If there's a thermostat there will be less of a stream until it opens.

What do you mean by "less of a stream"?????? All I was getting at first was a mist with a spray once in while from the pee hole. After the unit warmed up a little I started to get a good stream but it wasn't steady like my 40 has. That is why I think I may have put to much lubricant in the impeller area.

 

[BassnKY]

Re: Pee Stream???

If you were getting a mist, it sounds like it is sucking air somewhere. Even with the thermostat closed, it should still put out a smaller but steady stream. Just to be sure, try taking the thermostat out and see if it does the same thing?

Does the tube seem to fit snugly into the grommets?

You are correct that the Vaseline should clear liquefy once it get a little warmed up. But, to ease your mind, as you have mentioned it several times, I would go ahead and clean out the extra Vaseline.

 

[tthexic]

Re: Pee Stream???

i have a 92 60 horse merury i just bought which is new and there is no pee stream at all

 

[BassnKY]

Re: Pee Stream???

tthexic: We might be talking about 2 totally different problems. To make sure you do not get the wrong advice, it might be best to start a new thread.

In the mean time, make sure the pee hole is not clogged. I it isn't, it sounds like the water pump need to be rebuilt.

 

[SC1650]

Re: Pee Stream???

If you were getting a mist, it sounds like it is sucking air somewhere. Even with the thermostat closed, it should still put out a smaller but steady stream. Just to be sure, try taking the thermostat out and see if it does the same thing?

Does the tube seem to fit snugly into the grommets?

You are correct that the Vaseline should clear liquefy once it get a little warmed up. But, to ease your mind, as you have mentioned it several times, I would go ahead and clean out the extra Vaseline.

Thanks, I'll pull the thermostat the next time I put it in the water. I am sure that the tube is seating into both of the rubber grommets (Upper and Lower). I physically pushed it into the upper unit. The tube was 1/4 inch longer than it needed to be after I lenghtened it by straightening. I know it was in the plastic guide tube so I have to assume that it went all the way into the lower grommet. Someone mentioned with the thermostat that I would not get a real stream until the thermostat reached opening temperature. Is that correct????

 

[will941s]

Re: Pee Stream???

A two cylinder Merc with a t-stat and the pee tube connected to the t-stat housing will not pee all the time. It will only pee a weak stream at best or little water droplets until the t-stat opens, then it will pee like a race horse for like 10 or 15 seconds, than back to the weak stream. When you get to full throttle it will pee the whole time. That means the t-stat is working correctly. When I first got one I swore up and down it had a problem when I changed the t-stat and it had that crazy stream, now I just change the impellar and t-stat every year and forget it. Let it run, then touch the powerhead, esp the cylinder head water jacket and see if you can keep your hand on it. If you can, and it's warm but not too hot it should be ok.

 

[SC1650]

Re: Pee Stream???

A two cylinder Merc with a t-stat and the pee tube connected to the t-stat housing will not pee all the time. It will only pee a weak stream at best or little water droplets until the t-stat opens, then it will pee like a race horse for like 10 or 15 seconds, than back to the weak stream. When you get to full throttle it will pee the whole time. That means the t-stat is working correctly. When I first got one I swore up and down it had a problem when I changed the t-stat and it had that crazy stream, now I just change the impellar and t-stat every year and forget it. Let it run, then touch the powerhead, esp the cylinder head water jacket and see if you can keep your hand on it. If you can, and it's warm but not too hot it should be ok.

Thank you. That is exactly what mine did. Then it is working correctly. I did touch the engine (power head) after it had run for a while and it was warm but not hot. The pee stream when it was peeing correctly was hot. So I have everything in correctly. I can quit asking about this thing now and just use it.

Steve

 

[will941s]

Re: Pee Stream???

Yea, take it to the lake and open it up and see if it has a free flowing pee stream. When at idle it should be on and off, then after awhile it will just pee. Power head should never get past the point where you cant hold your hand on it.