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  1. #1

    Exclamation Pump housing question....

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ID:	210824my pump housing has some oxidization in the pump vains is this normal or should this be changed?Click image for larger version. 

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  2. #2

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    i dont know what that is but u should just sand it down and clean it up

  3. #3
    Got Boost? psycho rxp's Avatar
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    Looks like cavitation burns, from worn out prop
    Or wear ring

  4. #4
    Bob 1tommygunner1927's Avatar
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    Quote Originally Posted by psycho rxp View Post
    Looks like cavitation burns, from worn out prop
    Or wear ring
    Looks like he ran it in the shallow areas sucking up sand........

  5. #5
    If i knew,...I wouldn't ask sea-one's Avatar
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    cavitation burns? 16 yrs of watercraft and i've never heard of this term or damage from it?

  6. #6
    Got Boost? psycho rxp's Avatar
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    Quote Originally Posted by sea-one View Post
    cavitation burns? 16 yrs of watercraft and i've never heard of this term or damage from it?
    Google it.

    Pumps and propellers
    Major places where cavitation occurs are in pumps, on propellers, or at restrictions in a flowing liquid.

    As an impeller's (in a pump) or propeller's (as in the case of a ship or submarine) blades move through a fluid, low-pressure areas are formed as the fluid accelerates around and moves past the blades. The faster the blades move, the lower the pressure around it can become. As it reaches vapor pressure, the fluid vaporizes and forms small bubbles of gas. This is cavitation. When the bubbles collapse later, they typically cause very strong local shock waves in the fluid, which may be audible and may even damage the blades.

    Cavitation in pumps may occur in two different forms:


    http://www.google.com/gwt/x?oe=UTF-8...tation-erosion

  7. #7
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
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    Here's a good example of what can happen from extreme cavitation...

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  8. #8

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    Looks more like extreme rock ingestion. But it is hard to focus on the pictures with your avatar staring at us.

  9. #9
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
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    Quote Originally Posted by Helinut View Post
    Looks more like extreme rock ingestion. But it is hard to focus on the pictures with your avatar staring at us.
    It's definitely cavitation burn... That's the pump out of Jim's Performance GPR-SHO conversion.

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