1984 Force 50 no water to engine

[gwoloshyn]

I recently replaced the impeller along with various new seals throughout the lower end but I'm still not getting any water pumping up to the powerhead. Everything was installed correctly, and the water tube was properly seated when I put the lower end back on.

I added a pipe nipple to the thermostat housing for a tell-tale hole but nothing only exhaust is coming from it. The short piece of tubing that connects from the side cover to the thermostat housing is brand new, and when the motor runs it has some condensation in it but no water flow.

How long does it take for water to flow up to the engine at idle? I'm using ear muffs.

 

[tater76]

Re: 1984 Force 50 no water to engine

Mine builds flow within a few seconds, did you make sure the pin that drives the impeller was it in the driveshaft? It is quite tiny and can fall out. Are you for sure the impeller is not upside down? There is a notch that the pin on the driveshaft fits into on the impeller, if there is no pin, or the impeller is upside down you will not have flow as it is not spinning.

 

[gwoloshyn]

Re: 1984 Force 50 no water to engine

Yes, the impeller was installed correctly. There is only one way for the impeller to go in once the pin is in place.

Can anyone tell me what else is involved in the cooling system after it leaves the water pump? Is it a straight shot to that side cover on my powerhead by the long tube that leads up the motorleg? It seems pretty basic to me and unless there is something that's maybe blocking water flow where I can't see, I'm out of ideas.

 

[tater76]

Re: 1984 Force 50 no water to engine

Sorry to be so blunt/basic, but some folks just have little experience with OB's. So the impeller on your 50 pushes water through pipe in the leg, through the base plate. There is a gasket and oring between these plates, water is then pushed through the block into the recirculatory channels/exhaust plate, etc.. I am thinking you have a blockage somewhere, your new impeller could have grenaded, or your muffs are not providing high enough pressure to prime the pump. If you have been running in salt water you may have deposits blocking the flow. Is there even a little spitting of water? or just exhaust?

 

[gwoloshyn]

Re: 1984 Force 50 no water to engine

Thanks for the info. As far as I know the motor hasn't been in salt water. There's no water at all coming from the pisser just a bit of smoke, a small amount. There is a short tube on the powerhead which is supposed to carry water but isn't, its showing a small amount of condensation. What do you mean by impeller grenading? I put a small amount of belray grease on it prior to installation.

The earmuffs don't fit on tight and there is a large gap where water escapes. I'm going to try and run it in a bucket next.

 

[tater76]

Re: 1984 Force 50 no water to engine

Sometimes, and I say sometimes because it happens, there are new parts that have flaws. These flaws could lead to failure, and when I say grenade I mean the very essence of the word. It is possible that your new impeller came apart under the stress of operation, ie.. vanes seperating from the main body etc. I like you grease my impeller before install to reduce the chances of this happening, and fortunately never have had a failure in 10 or so years with various makes and models, but it does happen. So, with that said it sounds like you may have to pull the lower again to see if this did indeed happen. Look at this way, its a heck of a lot easier to drop the leg than pulling the power head I have also heard tale that the little pin in the driveshaft could be the culprit. I have run muffs, but I prefer the barrel. Once while adjusting shift linkages on an old Gale OB, I started the engine with the muffs on and the engine slid into gear, the hose and muffs soon met the prop yep it was a mess. I now am a religious barrel user

 

[celtic gelf]

Re: 1984 Force 50 no water to engine

actually you can install a impeller wrong it'd turned or hooked the wrong way.. a manual shows how it's to sit as it's upside down...my manual calls for the hook to the left as it's upside down...if it's hooked right it'd work differently ..