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Thread: Got into some SHALLOW sandy water this weekend.

  1. #1
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    Got into some SHALLOW sandy water this weekend.

    This weekend I accidentally ran aground into a shallow sand bar at almost idle speed. The is no damage or anything like that, just rubbed a little paint off the skeg, but I did kick up quite a bit of sand and mud in the water. My question is, should I check the impeller out or anything else to make sure I didn't suck up too much sand? I did run the boat for a while after it happened and the temp was right where it is supposed to be and everything ran perfect, I just want to make sure I get everything cleaned out.
    Donzi 18C
    Donzi 25 ZX "Full Tilt F/B "

  2. #2
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    It is probably as clean as your gonna get it just from running it.

    Run it and replace your impeller at the next normal interval.

    B
    Member - WAFNC
    1997 22 Classic (sold)
    1997 Formula 271 Fastech
    502 Mag MPI

  3. #3
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    If you don't overheat you are good to go.

    Flush everything out when you lay it up for the year.

    Ken

  4. #4
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    Thats what I was hoping to hear. Thanks guys
    Donzi 18C
    Donzi 25 ZX "Full Tilt F/B "

  5. #5
    mrfixxall Guest

    Fixx

    pull the water plugs in the block and run it on the hose,,if you sucked up sand it will settle in the block and the lower part of the manifolds or if you have headers the sand will settle in end of the water distribution tube that feeds the headers..i see it all the time where i boat..

  6. #6
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    Sand and muck will usually flow through the closed cooling system. I've done the same thing without any problems. Raw water cooled, I hear the sand can accumulate in the block.
    Lake St. Clair, Lake Huron, Lake Erie, Lake Oakland

  7. #7
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    Its a 502mpi w/o fresh water cooling. But it was in a fresh water river. Where are the water plugs located on the block? I would want to just run hise water through it without the engine on right?
    Donzi 18C
    Donzi 25 ZX "Full Tilt F/B "

  8. #8
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    Quote Originally Posted by Mckillop View Post
    No, its a 502mpi w/o fresh water cooling. But it was in a fresh water river.
    I saw that your's is an 18 and edited my post but you already read it! It's been mentioned here lots of times that sand can accumulate in the block.
    Lake St. Clair, Lake Huron, Lake Erie, Lake Oakland

  9. #9
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    This was in my 25ZX. I appreciate the help. Thanks
    Donzi 18C
    Donzi 25 ZX "Full Tilt F/B "

  10. #10
    mrfixxall Guest

    Fixx

    Quote Originally Posted by Mckillop View Post
    Its a 502mpi w/o fresh water cooling. But it was in a fresh water river. Where are the water plugs located on the block? I would want to just run hise water through it without the engine on right?

    so your saying you have antifreeze in the engine?? you have a heat enchanger?

    the way i rear w/o fresh water cooling??

    just pull the plug in the heat enchanger and see if sand comes out of it..

  11. #11
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    The plugs are low on the block, one just ahead of the starter and one in the same location on the other side. I pays to remove the whole thing, most have a screw out center which does not allow for great water flow. You should run the engine on the hose, one other place that can have some residue is the oil cooler that is a simple back flush.

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

    Fully retired marine tech near 60 years in the biz.

  12. #12
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    Quote Originally Posted by mrfixxall View Post
    so your saying you have antifreeze in the engine?? you have a heat enchanger?

    the way i rear w/o fresh water cooling??

    just pull the plug in the heat enchanger and see if sand comes out of it..
    Its a raw water cooled engine
    Donzi 18C
    Donzi 25 ZX "Full Tilt F/B "

  13. #13
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    Quote Originally Posted by mrfixxall View Post
    pull the water plugs in the block and run it on the hose,,if you sucked up sand it will settle in the block and the lower part of the manifolds or if you have headers the sand will settle in end of the water distribution tube that feeds the headers..i see it all the time where i boat..
    +1 on cleaning out the block and exhaust. You would be shocked at how much sand I recently removed from some exhaust manifolds. 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

  14. #14
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    A deep style strainer, like a Perko, can collect it and keep it out of your system.
    A transom pickup, rather than the drive pickup can help also.
    George Carter
    Central Florida
    gcarter763@aol.com
    http://kineticocentralfl.com/


    “If you have to argue your science by using fraud, your science is not valid"
    Professor Ian Plimer, Adilaide and Melbourne Universities

  15. #15
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    Quote Originally Posted by Mckillop View Post
    Its a 502mpi w/o fresh water cooling. Where are the water plugs located on the block?
    I just happened to have one handy. will post you a photo or two to show you exactly where they are.

    B
    Member - WAFNC
    1997 22 Classic (sold)
    1997 Formula 271 Fastech
    502 Mag MPI

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