http://www.marinedieseldirect.com/universal/200157/universal-owners-manual-seawater-diagram.html
I cannot remember, sitting here at home at the keyboard...
But going by the diagram in the link above, it looks like it would clockwise, viewed from the front.
Well, look at the bright side -- I have a 50% chance of guessing it right!
LB
I cannot remember, sitting here at home at the keyboard...
But going by the diagram in the link above, it looks like it would clockwise, viewed from the front.
Well, look at the bright side -- I have a 50% chance of guessing it right!
LB
Gary Peterson
Marine Guy
I know the 5432 turns the same as engine rotation but I am not sure about the 25XP.
Thanks! Yes Tim, I've heard from another source that it really doesn't matter how you install the impeller since it will self correct the first time it turns. I'll install it assuming a clockwise rotation; if I'm wrong, I'll trust in the self correction theory. Next time I take off the impeller cover I'll mark the direction of rotation on the outside of the cover.
Should I use a lubricant on the vanes when I put the new impeller in? If so, what is recommended?
Should I use a lubricant on the vanes when I put the new impeller in? If so, what is recommended?
Since the lube is going to go away once you start 'er up again, I put a tad bit of good ol' Lewmar winch lube on the impeller, since there is a tube of it stored nearby in our boat...
LB
Gary Peterson
Marine Guy
Or use simple liquid dish wash soap.............
KY Jelly
Don't use grease, it attacks the rubber that most of the impellers are made out of. Also the grease does not wash out greese is by nature water resistant... Like Oil and water don't mix!
Use what is recommended for the easiest insertion of latex coated objects into tight holes......
What are you blushing about, impellers into their housings of course....
KY Jelly...
Guy
Don't use grease, it attacks the rubber that most of the impellers are made out of. Also the grease does not wash out greese is by nature water resistant... Like Oil and water don't mix!
Use what is recommended for the easiest insertion of latex coated objects into tight holes......
What are you blushing about, impellers into their housings of course....
KY Jelly...
Guy
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Frank Langer
1984 Ericson 30+, Nanaimo, BC
So the grease cup on my Universal 5416 16 hp motor needs to be turned a half turn periodically to add grease to the raw water pump/impellor. I have been using a water resistant grease from a chandlery, but am now considering KY jelly--but isn't it too runny? I don't think it would stay in the grease cup for any length of time....and wouldn't it get washed away fairly quickly in the water flow?
Frank
Frank
Maine Sail
Member III
The proper lube
The proper lube and the stuff that ships with every Johsnon Impeller is glycerin. Another good alternative is vegetable oil..
The proper lube and the stuff that ships with every Johsnon Impeller is glycerin. Another good alternative is vegetable oil..
That is what is in KY Jelly!
Yep same stuff that is in KY Jelly, or you can request it from behind the counter at the local pharmacy as pure glycerin.
Yes it is water soluable, and it does leave, it is only there to lubricate the insertion and the first few turns. After that the water does act as both a coolant and a lubricant on it's own. In our non scientific test the impellers last about twice as long if they are lubed when being put in. Seems most of the damage is the first few rotations. Never run them dry it kills the impellers really quick.
Vegetable oil can leave a gooey mess in my experience. The KY Jelly or Glycerin works wonders.
Another great use for glycerin is to add it to your soap bubble mixture for blowing bubbles. It makes the bubbles a lot bigger and they stay together longer.
( You do blow bubbles off the back of YOUR boat at anchor don't you?)
Guy
Yep same stuff that is in KY Jelly, or you can request it from behind the counter at the local pharmacy as pure glycerin.
Yes it is water soluable, and it does leave, it is only there to lubricate the insertion and the first few turns. After that the water does act as both a coolant and a lubricant on it's own. In our non scientific test the impellers last about twice as long if they are lubed when being put in. Seems most of the damage is the first few rotations. Never run them dry it kills the impellers really quick.
Vegetable oil can leave a gooey mess in my experience. The KY Jelly or Glycerin works wonders.
Another great use for glycerin is to add it to your soap bubble mixture for blowing bubbles. It makes the bubbles a lot bigger and they stay together longer.
( You do blow bubbles off the back of YOUR boat at anchor don't you?)
Guy
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The grease in the cup is for the bearings
It should be grease, you can use a water proof grease, or super lube works good for that too. KY jelly is not for that use.....
The grease cup is for the bearing surface of the pump shaft, not the impeller.
Guy
It should be grease, you can use a water proof grease, or super lube works good for that too. KY jelly is not for that use.....
The grease cup is for the bearing surface of the pump shaft, not the impeller.
Guy
