jet boat gear box
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jet boat gear box

  1. #1
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    Default jet boat gear box

    owens gear box with 21's mounts to the back of your block also has lenco drive line.... 1,700.00 obo bob ( 714 ) 615-0644

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  3. #2
    Senior Member GAWnCA's Avatar
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    Quote Originally Posted by bob fry View Post
    owens gear box with 21's mounts to the back of your block also has lenco drive line.... 1,700.00 obo bob ( 714 ) 615-0644
    Do you have a photo? I'm not sure what you are describing. Tks
    Wags

  4. #3
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    pics coming , but it looks like a gear box in a flat just on the right end of the motor......

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  6. #4
    Senior Member H20MOFO's Avatar
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    So does it under drive, or over drive the jet. I'd love too see a pic of what it was in.
    Another Hot Boat refugee

  7. #5
    jetboataholic HawaiianJet's Avatar
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    Question

    This is for someone with a real high RPM race engine in their jet boat to reduce the RPMs down to a more efficient range, correct???

    Or is this for someone with a small boat where the engine is positioned on top of pump, so a gearbox is required to connect the pump and engine???
    HJ

    ***FOR SALE*** 1978 19' Full Stringer Hawaiian Molokai Jet Boat w/ Berkeley 12JC-AB and Chevy 440 Tall Deck ***FOR SALE***

    Quote Originally Posted by mako shark mark View Post
    Oh yeah, Forgot to mention that the hull is a special mixture of speedcote, herculiner and rain-x, all blended together- good for another 8 mph top end.

  8. #6
    Senior Member H20MOFO's Avatar
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    If ya want I can help ya post that pic.??
    Another Hot Boat refugee

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    sorry guys sometime life gets in the way of good deals, but as soon as i can get pics up I will again sorry for the delays... and yes its for more hp and less pump rpm..

  10. #8
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    bump to the top pics will be up tonight...

  11. #9
    Senior Member Brendellajet's Avatar
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    Quote Originally Posted by HawaiianJet View Post
    This is for someone with a real high RPM race engine in their jet boat to reduce the RPMs down to a more efficient range, correct???

    Or is this for someone with a small boat where the engine is positioned on top of pump, so a gearbox is required to connect the pump and engine???
    To add a little more explanation, allows the motor to spin to max power while under driving the pump. Just connecting the motor to the pump would not allow the enging to reach max power...Hopefully that makes sense.

  12. #10
    Senior Member Mcintyrelocal's Avatar
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    Sorry for the delay guy's heres the pics.






  13. #11
    Senior Member 1320h2o's Avatar
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    Hmmmm!! looks familiar for some reason!!

  14. #12
    Senior Member mwjsone's Avatar
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    Over Drive

  15. #13
    Senior Member Red Rocket's Avatar
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    It's actually underdrive, the motor spins faster than the jet. Overdrive is the opposite.

    How about $1000 Champ?

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    need to sale bump.....

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