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Thread: Donzi v drive

  1. #1
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    Donzi v drive

    I noticed I was not getting any water out of the side of the boat. I have to lines coming in the back one going to the water filter, transmission, and motor, and the other line goes to the v drive and then out the side, is there a pump in the v drive?

  2. #2
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    Not sure how Donzi plumbed them but most all I have worked on had the transmission and V drive in the main feed line assuring good flow to both. V drives get very hot if not cooled properly.

    Phil
    No matter what your beliefs are "GOD BLESS AMERICA"

    Fully retired marine tech near 60 years in the biz.

  3. #3
    mrfixxall Guest

    Fixx

    their should be a seapump on the front of the engine(towards the transom)..

    once removed and if the blades are gone you will need to find out which cooler they ended up in by removing the hoses and looking at the inlet at the coolers..

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    Quote Originally Posted by mrfixxall View Post
    their should be a seapump on the front of the engine(towards the transom)..

    once removed and if the blades are gone you will need to find out which cooler they ended up in by removing the hoses and looking at the inlet at the coolers..


    the cooler on the engine is pumping good, its the one on the v drive that hose comes directly from the transom throught the v drive and out the side no where else

  5. #5
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    There is no pump on your crusader 4500 v drive. It is cooled from the engine water pump.

  6. #6
    mrfixxall Guest

    Fixx

    Quote Originally Posted by jameseaves View Post
    the cooler on the engine is pumping good, its the one on the v drive that hose comes directly from the transom throught the v drive and out the side no where else

    it may be gravety feed whyle you are at cruise speed,i wouls try to back flush it with a garden hose..that cooler probably cools the turbo 400 also,,make sure its working properly before the next time you take it out or you could blow the trans from no water getting to the cooler..also check your sea strainer for blockage..

  7. #7
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    My Crusader 4500s are fed by the seawater pumps on the cranks, along with the rest of the seawater side of the cooling system. FWIW, -Mike
    "I don't have time to get into it, but he went through a lot." -Pulp Fiction

  8. #8
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    This is what I don't understand my v drive comes from a seperate hose, straight from the lake into the v drive and then out the side of the boat the engine and transmission are on a seperate line

  9. #9
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    It may have a force feed line that has pressurizes when you are moving fast enough which would allow it to cool while moving, but not when idling.. Jamie

  10. #10
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    Quote Originally Posted by LKSD View Post
    It may have a force feed line that has pressurizes when you are moving fast enough which would allow it to cool while moving, but not when idling.. Jamie
    That makes sense since no real heat is being generated when in neutral, or moving slow.
    George Carter
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  11. #11
    mrfixxall Guest

    Fixx

    Quote Originally Posted by LKSD View Post
    It may have a force feed line that has pressurizes when you are moving fast enough which would allow it to cool while moving, but not when idling.. Jamie

    Echo!!

  12. #12
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    Quote Originally Posted by LKSD View Post
    It may have a force feed line that has pressurizes when you are moving fast enough which would allow it to cool while moving, but not when idling.. Jamie
    Quote Originally Posted by gcarter View Post
    That makes sense since no real heat is being generated when in neutral, or moving slow.
    I think quite a few are rigged that way. There was a man on the Donzi forum who restored one which had the cooling water intake on the leading edge of the strut - kind of unique, but an effective way to cool the drive. Bill

    1971 Donzi 18' 2+3
    1985 Eliminator 23' Daytona Offshore - Kevlar hull
    1988 23' Donzi CC F-23 with 250HP EFI Mercury OB
    1989 28' Team Warlock Offshore - single 548CID/600HP
    1990 23' Warlock Offshore - single 525HP
    Bill from Denison, TX - Lake Texoma

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