Run Dry Impellers
Where can I find "run dry" impellors for my Mercruiser HP500?
Thanks! :cool: |
Google for Globe Marine Run-dry, 100Blue. Model is either 1000 or 2000 depending on the pump.
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Originally Posted by Chris Sunkin
(Post 2393618)
Google for Globe Marine Run-dry, 100Blue. Model is either 1000 or 2000 depending on the pump.
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Check with NASCAT on the board he was selling them in the classifieds.
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I've never deliberately run one dry to test it. They last really well and they have fitments for all sorts of impeller pumps- not just boats. It's some large company that manufactures them, not some guy in his garage.
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Is it fair to assume that a 'run dry' impeller doesn't seal quite as well as a standard Mercury impeller & that's why it doesn't burn itself to shreds without water present? Is it a 3M miracle rubber compound? I find it hard to believe that Merc wouldn't use the same technology & offer it as standard equipment if it performed as well as their OEM impeller with the benefit of taking additional abuse. Does anyone know the facts?
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Be sure you do the research before purchasing. This has been covered a few times on OSO.
They will make your engine(s) run 10-15 degrees warmer. They are made of silicone and not rubber. The veins are not a stiff as rubber, and hence do not move as much water. Expect any after SWP water pressure gauges AND accessories to receive less pressure and obviously less water. |
Anyone have a link?
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I used them, but still replaced them every year, and still carried a spare on the boat at all times. It seemed to me it did not seal the same as a stock unit when in the pump housing.
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Thanks for the info, Sydwayz.
Originally Posted by Sydwayz
(Post 2393763)
Be sure you do the research before purchasing. This has been covered a few times on OSO.
They will make your engine(s) run 10-15 degrees warmer. They are made of silicone and not rubber. The veins are not a stiff as rubber, and hence do not move as much water. Expect any after SWP water pressure gauges AND accessories to receive less pressure and obviously less water. |
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