6 hp Johnson not peeing water

[swimmin' for shore]

I haven't done a lot with waterpumps, impellors, or thermostats, but I know enough not to run it without water. I just put a brand new impellor in this little kicker and started it up in the bucket, but it doesn't pee any water. I took a look at the thermostat and it was locked up. Sprayed it with WD40 and got it to release enough to be able to push it up and down. I put it back in and put the cover on, and started it up again. Still no water. Waterpump or a possible thermostat issue still? Should I run it without the thermostat to see if it pumps before I go further?

 

[ondarvr]

Re: 6 hp Johnson not peeing water

The thermostat won't have any affect on the pee stream, its located before the thermostat so it only shows that the impellor is pumping water, not that its actually cooling.

Check to see if the pee tube is plugged, its very common for bugs to hide in there, or bits of gunk to get stuck in it.

Also is it deep enough in the bucket? It needs to be above the AV plate over the prop.

So where are you stationed now?

 

[Vic.S]

Re: 6 hp Johnson not peeing water

Possibly pump impeller, possibly scaled up water passages, possibly merely a blocked telltale.

BUT the recurring problem I have with my 6hp is that corrosion around the grommet at the top of the watertube squeezes the grommet over the top of the tube restricting and eventually completely cutting off the water flow!


What year of 6hp are we talking about?

 

[swimmin' for shore]

Re: 6 hp Johnson not peeing water

Thank you guys for the replies. This is a 68 johnson. I tend not to think that the rubber grommet is stopping it. I put it in carefully. I'll try blowing some air back through the telltale. I feel like maybe I'm facing a bad pump, as you can feel the lower unit sides heating up almost immediately, which forces me to shut it down, of course. I got this for nothing, so I figure it's worth the effort to get it right. It started up after about the 3rd pull, and it's been sitting for some years now.

Ondarvr-Great to see you here. I got on here with a few issues the other day and I've been thinking about you. I'm glad you're still around, sharing your expert advice. I got out of the Navy almost a year and a half ago now, actually. I moved back to IL, though more in the northern section. I lived here before I went into the Navy. I miss Washington like crazy, but the catfishing is something I'm making the most of. When are you coming out to give it a shot? Trade you for a salmon trip this fall. Shoot me an email if you want. justjames_76...yahoo

 

[PW2]

Re: 6 hp Johnson not peeing water

You didn't say the year, but my 75 6hp Johnson has a water discharge halfway down the lower unit on the back of the motor. If the water pump is working, water should be exiting there. The tell tale is just that-a tell tale, it could be plugged with debris and not affect cooling at all.

If water is not coming out the lower unit, you could have any number of things wrong, including a misaligned grommet and water tube.

 

[Vic.S]

Re: 6 hp Johnson not peeing water

I am talking about the grommet at the TOP of the water tube! you did not say you'd had the power head off!

Anyway a '68 is different to mine so hopefully it does not suffer from the same problem.

A '68 model does not have separate pee hole .... fitted in the lower half of the motor cover and connected to a fitting on the engine by a small hose .... unless someone has retro fitted one.

However you clearly do not have any water flow. If you are sure you have it in a deep enough bucket then the water pump is the prime suspect.

But are you sure that you have located the water tube properly in the top of the water pump.

 

[swimmin' for shore]

Re: 6 hp Johnson not peeing water

Alright. Perhaps I'm mistaken, but like the 75 hp commented on above, I have a small hole halfway down the lower unit. I assumed, possibly incorrectly, that that is the tell-tale. In the meantime, I dropped the lower unit again, took off the thermostat cover, and blew air through the pick-up tube. Air reached the thermostat. I replaced the thermostat cover and took off the water inlet plate down near the bottom of the lower unit to check that it was clear. It is. I put the motor back together and put it in the bucket and started it again. No water out the pee hole, which may not be a pee hole at all, aparently.
I haven't dropped anything from the motor to check the rubber grommet at that level. Do I need to do that next?

 

[crxess]

Re: 6 hp Johnson not peeing water

Well.........it is only 3 bolts to pull the thermostat cover off.
Fire it up and water should gush out immediately. If not something is blocked or broken.

You say you just put a impeller in? Did you make sure the pin stayed in place? With out it the impeller will not turn.

 

[swimmin' for shore]

Re: 6 hp Johnson not peeing water

The pin is definitely in place. I'll pull the thermostat cover off and see if there's water. Since the impeller is new and I already checked that the tube is clear, I'd definitely have to think it's the pump if that doesn't do the trick. Getting tired of playing with this today.

 

[swimmin' for shore]

Re: 6 hp Johnson not peeing water

Just adding on-no water coming out of the thermostat when I took the cover off. Tried it with the little thermostat out, too. Still no water.
There's another problem, though. Forgive me for not knowing my motors well enough. I'm trying to learn, but it's obviously a slow process. There doesn't appear to be a water pump in this motor. I looked it up on iboats and on another site for parts, and the schematic doesn't even show one. That takes us back a step. What am I missing here?

 

[Les Robb]

Re: 6 hp Johnson not peeing water

Go to shop.evinrude.com pick johnson motors your year & horse power. They have about 6 different models and the 3 I checked all have impellers. Look under gearcase group. How can you say in one breath the pin is in place and you just put in a brand new impeller then tell us it dosen't have an impeller?
A good idea for you would be to find a service manual and do a little research into your engine. You can also look at all the parts layout on the evinrude site I mentioned to see what's what and where. And trust me I am really trying to understand. What is the exact year of your motor and the horsepower and the model number.

 

[Vic.S]

Re: 6 hp Johnson not peeing water

There doesn't appear to be a water pump in this motor

But you said you had put in a new impeller !!!
Of course there is water pump, what else pumps the water round to cool the engine. Or is this a pile of bits you have bought that someone has taken the pump from?

CLICK HERE TO SEE A DIAGRAM OF THE GEARCASE AND WATER PUMP
parts #15, 16, 17 & 18 make up the water pump. #16 is the impeller but if you put in anew one you know that but where did you put it if you did not know about the water pump?

1968 6hp right ? are you sure about the year. What is the model number?

Still dont understand what you believe is a telltale. There is not one on a 1968 model.

 

[swimmin' for shore]

Re: 6 hp Johnson not peeing water

I guess I was misunderstanding what I was reading in the 1st place. I did change the impeller, and I changed it correctly. My understanding, though, was that what you guys have identified as the water pump was the impeller housing. I thought the water pump was something different. Well, in any case, I can order and change that. I'll do so, and see if we're in better shape when it comes in. Sorry for the confusion.

 

[Vic.S]

Re: 6 hp Johnson not peeing water

Unless the pump housing is badly worn or damaged it should be pumping some water!

Never tried it but they say that you can test the pump by dunking the whole gear case assembly in water and spinning the drive shaft with an electric drill (cordless advisable perhaps in neutral gear too)

Have you tried connecting a hose to the bottom of the water tube to see if tou can get a flow through the engine. You should get a flow up to the thermostat if you try with the cover off and the 'stat removed and easily through the whole power head with just the cover refitted.

 

[swimmin' for shore]

Re: 6 hp Johnson not peeing water

I guess that's what I was struggling with. I see the pump housing and I've had it out. I misunderstood it to be the impeller housing, as it's listed on the schematic I looked at. It doesn't look to be badly worn or anything. The rubber grommet in the top of the pump housing looks fine, as well. Nothing's clogging the housing. I blew the air through the pick-up tube and I seemed to be getting air flow up to the thermostat. As I said, the thermostat was stuck, so I used WD 40 and a pair of pliers and loosened it back up. Even so, water doesn't come up into the thermostat enclosure even with the thermostat out. I think I'll do just what you said and recheck the pick-up tube using water instead of air. I'll do that tonight when I get home from work, I suppose, and come back with results.

 

[Rick.]

Re: 6 hp Johnson not peeing water

You were asked before if your leg is deep enough in the water barrel and I don't see that you answered that question (maybe I just can't see your answer). The depth the leg is in the water is very important. Try immersing the leg as deeply as you can in the water and see if it make a difference. Rick.

 

[swimmin' for shore]

Re: 6 hp Johnson not peeing water

There's a water inlet, Rick, and I'm below that. It crossed my mind to put the motor into deeper water and try it again, but I didn't get to that yesterday. I just need a deeper bucket, I guess. I'll try that this afternoon too, and thank you, and everyone else, for the good advice.

 

[Rick.]

Re: 6 hp Johnson not peeing water

I hope you meant to say your above that rather than "below". I'm sure you did. The inlet is below the pump and these pumps are good for pushing water but very poor on the suction side of things. They need to be fully immersed in the water to function properly. The water needs to be above the top of the pump at the very least and still, higher than that is better. Rick.

 

[swimmin' for shore]

Re: 6 hp Johnson not peeing water

I meant that the inlet is below the water level. I'm certain, but I'm going to figure out a way today to all but dunk the damned powerhead.

 

[Rick.]

Re: 6 hp Johnson not peeing water

Now your talken. Rick.