alpha one out drive
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alpha one out drive

  1. #1
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    Default alpha one out drive

    does this out drive supply enough water to engine to keep it happy or does it need a water pump of some sort ? thanks for the help

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    Senior Member EVILFORCE's Avatar
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    It supplies thousands of boats everyday. Mine works fine.
    No Fool Like A Old Fool is there?

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    It's what we do BDMarine's Avatar
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    The Alpha drive has an internal water pump that that supplies the engine with water. It needs periodic servicing (impeller replacement)
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    B & D Marine Performance
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    so i can take the water pump off of the front of the engine ?

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    Senior Member GT Jets's Avatar
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    Quote Originally Posted by lowlow62 View Post
    so i can take the water pump off of the front of the engine ?



    Is that a real question?

    You can put a crossover tube on the engine an lose the engine mounted water pump, but it does not stop there....

    The engine mounted water pump does not pick water up from the lake, it circulates water through the block until the stat opens then it goes through the exhaust system to cool the manifolds and whatnot....

    You need to research it a lot more, but this requires some changes in the system as a whole...

    FWIW, I would rather see an engine mounted water pump before using the raw water pump to support the whole enchilada....The drive pumps are not all that impressive as far as flow. A Bravo type pump is a better choice IMHO....
    GT


    Quote Originally Posted by Quickjet View Post
    Put a 300 on the back of it, Flywheel it and a nosecone. $15,000 later you'll have a 65 mph pile of shit......

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    make sure you know the engine coolant path. older engines are different. Did the water pump engine use a heat exchanger(water encapsulated radiator)? I have been following your project. Keep up the good work.

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    I was just gonna run the cooling system just like on a jet boat kinda like the one on wasted wages lsx swap he is doing all i want to know is if the pump in the out drive will support the motor .... but i guess we'll find out this weekend as its almost done..... thanx for the help and input guys

  10. #8
    Senior Member GT Jets's Avatar
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    Quote Originally Posted by lowlow62 View Post
    I was just gonna run the cooling system just like on a jet boat kinda like the one on wasted wages lsx swap he is doing all i want to know is if the pump in the out drive will support the motor .... but i guess we'll find out this weekend as its almost done..... thanx for the help and input guys

    IMHO, I would use the larger pump like on a Bravo deal....

    The drive pump is pretty wimpy in comparison.
    GT


    Quote Originally Posted by Quickjet View Post
    Put a 300 on the back of it, Flywheel it and a nosecone. $15,000 later you'll have a 65 mph pile of shit......

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    is that a direct replacement deal or do i have to modify the living crap out of it ?

  12. #10
    Senior Member GT Jets's Avatar
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    Quote Originally Posted by lowlow62 View Post
    is that a direct replacement deal or do i have to modify the living crap out of it ?
    Pretty easy swap depending on what engine...

    I have a complete pump assy. for a 454, they make one for the 350 as well (used on the Blue Water inboards among others)..

    You could pull the impeller from the outdrive and use the original water hoses, or install a thru-hull pick up and go the in board route..

    Both should do what you need...I don't have a lot of faith in the internal pump of the drive to be reliable for your particular application...
    GT


    Quote Originally Posted by Quickjet View Post
    Put a 300 on the back of it, Flywheel it and a nosecone. $15,000 later you'll have a 65 mph pile of shit......

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    ok put boat in water and could not get any water up in the engine. whats the deal supposedly it has a new water pump in the out drive

  14. #12
    It's what we do BDMarine's Avatar
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    Quote Originally Posted by lowlow62 View Post
    ok put boat in water and could not get any water up in the engine. whats the deal SUPPOSEDLY it has a new water pump in the out drive
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  15. #13
    Senior Member GT Jets's Avatar
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    Quote Originally Posted by lowlow62 View Post
    ok put boat in water and could not get any water up in the engine. whats the deal supposedly it has a new water pump in the out drive
    Never assume, these impellers should be replaced annually.

    There are some things that can keep it from working, which drive? is the two halves through bolted or studded?, the through bolted ones are second generation and have a better water pump (read bigger)...
    GT


    Quote Originally Posted by Quickjet View Post
    Put a 300 on the back of it, Flywheel it and a nosecone. $15,000 later you'll have a 65 mph pile of shit......

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