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  1. #1

    300hp engine in '00 GTX DI -hull.

    I'm building 1630-engine to '00 GTX DI Orbital -hull. The pump and the driveshaft are also from 300hp PWC. New driveshaft is much bigger than old one and barely fits through the hole in the hull. So I guess there is not enough water flow to carbon ring any more. Is it only way to laminate bigger pipe through the hull?
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  2. #2
    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by micco View Post
    ... guess there is not enough water flow to carbon ring ...
    Does the carbon ring need water flow or merely the presence of water to work properly?

    Would it be possible to create a small water feed connection directly into the side of the driveshaft area and deliver some pressurized jet pump water (diverted from the jet pump raw water feed to the cooling system)?


  3. #3
    Kosh's Avatar
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    My guess would be it would work ok water cooling wise, concern is the clearance allowing for the movement of the motor on the engine mounts, you will need X ?clearance to ensure it will not rub into through hull fitting. Sorting out an upgrade should not be a show stopper.

  4. #4
    With this nice little drill I drilled a bigger hole through hull so I can fit soil&waste-pipe there.



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