Berkeley Pump ?'s
+ Reply to Thread
Results 1 to 14 of 14

Thread:
Berkeley Pump ?'s

  1. #1
    Senior Member ironman's Avatar
    Join Date
    Mar 2008
    Location
    Clovis CA
    Posts
    133

    Default Berkeley Pump ?'s

    What is the purpose of the insulator that goes between the wear ring and the suction housing? I've been thinking about machining a bronze shouldered wear ring to match my impeller and just pressing it into the suction without the insulator. Has this been done before? Thanks for the help

    Ironman

  2. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  3. #2
    Boss of the McIntyre Mob danhercules's Avatar
    Join Date
    Dec 2007
    Location
    Norco
    Posts
    1,981

    Default

    I bet its to make the wear ring come out easy. It makes a tight fit when the wear ring is frozen. Ya melt the insulator to get it out if need be replaced.

    THis is just a guess.


    Very first TPR 21' Deck. 528 BBF 736hp on pump gas built by High Flow Dynamics

    McIntyre Mob. Where the rejects play!

  4. #3
    Boat Nut sleekcrafter's Avatar
    Join Date
    Dec 2007
    Location
    South Elgin, Il.
    Posts
    5,131

    Default

    Thats a common fix for pump housings that have spun the wear rings prior, and would not stay put.
    Upper Midwest Power Boat Association
    DRAG BOAT RACING UMPBA #926


  5. Remove Advertisements
    PerformanceBoats.com
    Advertisements
     

  6. #4
    Cas
    Cas is offline
    Angry American Cas's Avatar
    Join Date
    Jan 2008
    Location
    NorCal
    Posts
    3,103

    Default

    it's to prevent the dissimilar metals from touching each other. If it didn't have the insulator, the aluminum and steel/SS would basically weld themselves together.
    Last edited by Cas; 04-12-2010 at 07:24 PM.

  7. #5
    Senior Member ironman's Avatar
    Join Date
    Mar 2008
    Location
    Clovis CA
    Posts
    133

    Default

    what if it was pressed in with a thin coat of anti-seize and the wear ring would be out of bronze..

  8. #6
    Cas
    Cas is offline
    Angry American Cas's Avatar
    Join Date
    Jan 2008
    Location
    NorCal
    Posts
    3,103

    Default

    Quote Originally Posted by ironman View Post
    what if it was pressed in with a thin coat of anti-seize and the wear ring would be out of bronze..
    although I really don't know with bronze, I would think with the 2 different metals, corrosion between the 2 will still occur which can cause them to bond together. I don't know if you could put a thick enough coat of anti-seize to prevent that from happening without some slippage.

  9. #7
    Senior Member
    Join Date
    Dec 2007
    Posts
    995

    Default

    Quote Originally Posted by Cas View Post
    although I really don't know with bronze, I would think with the 2 different metals, corrosion between the 2 will still occur which can cause them to bond together. I don't know if you could put a thick enough coat of anti-seize to prevent that from happening without some slippage.
    Maybe the corrosion would put pressure on the intake housing and cause it to crack. Then the boat would sink!!! I would't want to think that even the possibility of that happening, could happen. Just machine it from plastic like an ultimate wear ring.

  10. #8
    Senior Member
    Join Date
    Feb 2008
    Posts
    546

    Default

    as sleekcrafter said a good way to save the suction housing if the wear ring has spun in the hole. have done this several times through the years when a customer did not want to spring for a new housing. also i am sure one of the reasons the mfg's use the liner is that it take a pretty hefty piece of bronze to machine the pressed in ring. i purchase several of these blanks years ago from a fellow dealer and still have a dozen or so blanks left. also have seen some of his work that had been out there for years and no sign of corrision to the housing.

  11. #9
    mo balls than $cents$ IMPATIENT 1's Avatar
    Join Date
    Dec 2007
    Location
    hugo,okla
    Posts
    11,729

    Default

    be done with it and put in a ultimate wearring i hate, hateeeeee wearrings with insulators, i won't even touch em don't seal fo shit and they hurt impellors, no bueno

    Dare to be different, if it turns out great you can claim you planned it that way.

    Jetboatperformance.com

  12. #10
    "Mad" Member Jet Mad's Avatar
    Join Date
    Dec 2008
    Location
    Cape Town, South Africa
    Posts
    769

    Default

    I know that on a Hamilton Jet unit there are an insulator behind the wear ring in the stator housing to prevent the brass impeller and SS wear ring from building up static electricity.

    Running without the insulator causes inteference with the electrical systems. I do not know if it is the same with the Berk,Dominator etc. I may be wrong.

    Running in salt water or water with a high salt content causes the sacrificail anadodes to corrode faster when running with out the insulators.

    JM


    Titan H2O Submersible Android Phone

  13. #11
    Boat Nut sleekcrafter's Avatar
    Join Date
    Dec 2007
    Location
    South Elgin, Il.
    Posts
    5,131

    Default

    Quote Originally Posted by johnray069 View Post
    have seen some of his work that had been out there for years and no sign of corrision to the housing.

    One of my pumps has a pressed bronze ring, with no evidents of corrosion either, and is lipped like the current wear rings.


    Stainless wr on aluminum, and bronze impellers...

    Bronze wr on Stainless impellers.........as a general rule
    Upper Midwest Power Boat Association
    DRAG BOAT RACING UMPBA #926


  14. #12
    Senior Member glastornjet73's Avatar
    Join Date
    Oct 2009
    Posts
    657

    Default

    Quote Originally Posted by IMPATIENT 1 View Post
    be done with it and put in a ultimate wearring i hate, hateeeeee wearrings with insulators, i won't even touch em don't seal fo shit and they hurt impellors, no bueno

    so ultimate wear rings are completly plastic? i was wondering because they are orenge! dam i wish i wouldent have let tom talk me out of one now....but how do they last compared to a ss shoulderd wear ring? i boat in a very dirty river!

  15. #13
    Senior Member Fonz69's Avatar
    Join Date
    Jan 2008
    Location
    Frozen Tundra, WI
    Posts
    620

    Default

    The Ultimate Wear ring holds up great, I had my 21 Daytona with a blown 540 in the WI river 90% of the time I boated and it held up great!

    I checked it after a summer of fun and showed no signs of wear!

    Plus they are easy to install!

    Wonder why he talked you out of it??? Maybe wants you to bring back a pump soon for a rebuild??
    Last edited by Fonz69; 04-15-2010 at 07:00 PM.

  16. #14
    Senior Member lbhsbz's Avatar
    Join Date
    Oct 2008
    Location
    Long Beach
    Posts
    1,617

    Default

    Get an Ultimate wear ring....if for no other reason that it is softer than the impeller. Impeller's are more expensive than wear rings....so it's kinda dumb that wear rings are harder than aluminum impellers, or as hard as stainless impellers. Might as well call them wear impellers.

    I've got one and it works great if you set the clearances up like Duane tells you too...

+ Reply to Thread

Quick Reply Quick Reply

Register Now

Please enter the name by which you would like to log-in and be known on this site.

Please enter a password for your user account. Note that passwords are case-sensitive.

Please enter a valid email address for yourself.

Please select your insurance company (Optional)

Log-in


Digg This Thread

Posting Permissions

  • You may post new threads
  • You may post replies
  • You may not post attachments
  • You may not edit your posts
  •  
 

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95