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Old 10-26-2012, 06:06 PM   #1
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Impeller vanes

Where dead impeller vanes go.
if you have some missing check the heat exchanger raw water inlet side.
Steve W
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Old 10-27-2012, 08:49 AM   #2
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My recommendation has always been to use a Y strainer AFTER any rubber impeller pump.

Its SO easy to simply pull the screen and have it ALL !

Its so fast one can pull the screen just to see if the rubber is coming apart in tiny chunks, as part of the PM.
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Old 10-27-2012, 10:27 AM   #3
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Or just change the impellers before they self-destruct like you're supposed to.
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Old 10-27-2012, 11:04 AM   #4
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Originally Posted by FF View Post
My recommendation has always been to use a Y strainer AFTER any rubber impeller pump.

Its SO easy to simply pull the screen and have it ALL !

Its so fast one can pull the screen just to see if the rubber is coming apart in tiny chunks, as part of the PM.
Make sure the strainer leg is below the line pointed down if you want it to catch debris as intended. And buy a spare screen at the same time you buy that strainer in case you damage it cleaning. Nothing is more useless than a Y strainer without a screen in it.

Basket strainers are more $ but even easier to service. Either will work well.
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Old 10-27-2012, 11:27 AM   #5
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Or just change the impellers before they self-destruct like you're supposed to.
Yes. In my 20 plus years of diesel boating I have never had an impeller break up. Do the maintenance.
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Old 10-28-2012, 06:21 PM   #6
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I don't think you can put a strainer after the pump on all engines. Changing the impeller on the recommended schedule works for most folks.
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Old 10-28-2012, 08:11 PM   #7
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Quote:
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Where dead impeller vanes go.
if you have some missing check the heat exchanger raw water inlet side.
Steve W
Good info and great pic!
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