How to id a Berkeley impeller
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How to id a Berkeley impeller

  1. #1
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    Default How to id a Berkeley impeller

    How far do I need to break down my pump to see the stamp identifying the cut of the impeller or can it be seen through the nozzle or clean out port?

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  3. #2
    Senior Member horsepower junkie's Avatar
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    You will need to take the bowl off to see if it has a stamp on the impeller if it does it will be next to the impeller nut.
    WFL CREW

  4. #3
    Senior Member jetboatperformance's Avatar
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    Quote Originally Posted by 5akman View Post
    How far do I need to break down my pump to see the stamp identifying the cut of the impeller or can it be seen through the nozzle or clean out port?
    Quote Originally Posted by horsepower junkie View Post
    You will need to take the bowl off to see if it has a stamp on the impeller if it does it will be next to the impeller nut.
    As HP junkie indicated your impeller will likley be stamped on the backside with for example an A, AA, B letter designation ect, however that may only indicate what the impeller started as , if the impeller has be recut or modified and not restamped (common) the true way is to measure the impeller with precision tools , there is no simple access to view the back of the impeller without bowl removal Tom




    AMERICAN TURBINE JET DRIVE IMPELLER SPECIFICATIONS
    IMPELLER SIZE LARGE DIAMETER SMALL DIAMETER MACHINED ANGLE
    9 1/2" 9-1/2" 8-1/4" 25 DEGREES
    9 1/4" 9-1/4" 8-1/4" 20 DEGREES
    AA 9-3/32" 7-13/16" 25 DEGREES
    A 9" 7-1/4" 30 DEGREES
    B 8-3/4" 6-3/4" 33-1/2 DEGREES
    C 8-1/2" 6-1/2" 33-1/2 DEGREES


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