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Go Back   SailNet Community > On Board > Gear & Maintenance
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  #21  
Old 06-29-2008
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cardiacpaul is a jewel in the rough cardiacpaul is a jewel in the rough cardiacpaul is a jewel in the rough
ummm, uhhh, the zip ties are a good idea, sting, anything to "pre install" is a good idea.
As far as pre-lube, i used to use vasoline, but ummm, uhhh, try one of those "personal" lubricants... very slippery.
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Rather than the KY I prefer the built in lubrication and RUN DRY capability of the Globe brand impellers. Some people have had bad luck with them but most swear by them and they do compensate for the occasional lapse of memory at the through hull! Here's an excellent article on them AND how to change an impeller.
http://www.sailmag.com/boatworks/bw08.impeller.pdf
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Rather than the KY I prefer the built in lubrication and RUN DRY capability of the Globe brand impellers.
Thanks for the hint, Cam. I'll have to look into this.

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Some people have had bad luck with them ...
What kind of "bad luck?"

Jim
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Some claim premature failure..generally not the loss of a "wing" but rotation of the rubber on the center section. I have not found this issue and they do not degrade in the "rubber" part anywhere near as fast as the black ones. As they are so cheap, I always carry spares but have only had good experience and no need to replace as often as the black ones.
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Some claim premature failure..generally not the loss of a "wing" but rotation of the rubber on the center section. I have not found this issue and they do not degrade in the "rubber" part anywhere near as fast as the black ones. As they are so cheap, I always carry spares but have only had good experience and no need to replace as often as the black ones.
I had two Globe impellers spin the hub on a Universal M-25. I went back to the regular impellers. In theory they are a great idea but after two spun hubs at the most inopportune times and I had no choice but to go back to regular impellers..

I change mine every year.. Five minutes and never a head ache..
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Impeller Replacement

I will probably start a real argument, but on some motors the impeller shaft can be removed making replacement of the impeller much easier. My universal 18 is such a motor. Check the Universal web page at Torrenson (sp), Mechanics debunk many myths. You can remove the brass constrictor (not the correct term, but my info is on the boat) for ease of replacement as well. A hose clamp tightened down with the impeller center, and on the shaft, simply slide in and refit, replace constrictor. Oil a little replace gasket, and cover with a thin film of oil and replace cover. Get spare screws as these are easy to drop and become lost in the engine compartment.
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