A No Water Tell Tale ? again

Downwindtracker2

Petty Officer 2nd Class
Joined
Jun 25, 2008
Messages
110
I installed a new impeller on my just purchased like new '81 4.5, Seloc really helped.No key on the bottom of the pump on my second try.It started in a barrel without much trouble but no water came out the tell tale. So I shut down with less than a minute of running.I pulled the bottom off again and opened the pump housing.Impeller didn't turn on the shaft. I blew air up the tube and it came out the tell tale.I put tabs on the plate in the only holes they could go. I lined up the tube and the discharge.Then I tried again ,I idled for a short time and still no water.

I get air coming out the tell tale,is this normal at start up?
Do I have to wait for water ? The water is 8-9" below "transon".

BTW,this my first outboard.
 

emckelvy

Commander
Joined
Jan 16, 2004
Messages
2,506
Re: A No Water Tell Tale ? again

By "Impeller didn't turn on the shaft" I'm assuming you mean that the key was engaged in the propeller so that when you turned the driveshaft it moved the impeller, ?yes?

One common theme is not getting the copper water supply tube in the pump housing. Also there should have been a rubber grommet inserted into the hole in the upper plastic pump housing, where the water tube engages.

Something else, it's virtually impossible to get the water tube in the pump if there is no plastic guide tube in the pump. This tube has a slip-fit into the pump. First goes in the rubber grommet, then the tube slip-fits onto that. The only purpose of this tube is to "catch" the copper water supply tube when the lower unit is "on its way up".

It does help to shine a lite in there when you're assembling, so you can make sure the guide tube catches the water tube. Just about the time this happens is when the gap between lower unit casing and the exhaust tower is getting so small that you can just barely see in there.

Sometimes, you'll see the copper tube pull out of the upper end of the motor, and get stuck in the pump. Although it handily comes apart this way, you'll never get it back together. You have to pull the tube out of the pump and re-insert into the upper water tube grommet, under the powerhead. With a strong light you can see where this goes. Spread a thin coating of waterproof grease or Permatex #3 Aviation-type gasket dressing on the tube where it contacts the grommet.

Anyway, those are a few things to check out. Something else you can do to prove to yourself that water will actually flow thru the motor, is to hook up an external source of water to the supply tube and see what happens. I'm thinkin' that since you can flow air thru the motor, water should do the same.

That being the case, I'm suspecting the problem lies with the bottom end or an assembly problem. Don't forget to check the suction side of the pump for blockages.

HTH.........ed
 

Downwindtracker2

Petty Officer 2nd Class
Joined
Jun 25, 2008
Messages
110
Re: A No Water Tell Tale ? again

Yes,the impeller couldn't turn on the shaft,so I must have gotten the key in.Tricky little thing. When looking down on the pump,the vanes are set for clockwise rotation.Is this right? Putting it in, I twisted clockwise.I did check the the lining up of the guide tube and the tube with an inspection mirror and a flashlight,but it's dark in there.I got it in three times but missed the drive shaft lining up.Fourth time I got the shaft in,but I not as sure about the tubes.

Can I flush water up the pump intake over the prop,with a block of wood adapter??
 

Downwindtracker2

Petty Officer 2nd Class
Joined
Jun 25, 2008
Messages
110
Re: A No Water Tell Tale ? again

Thanks for the help,I made a mistake,I had installed a O-ring from the implller kit between the pump casing halves giving too much clearance.I did get good at taking off bottom ends:D
 
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