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  1. #1
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    2012 Etec 250HO dropped both center cylinders - thoughts????

    Looking for any feed back on similar experience, 2012 Etec 250 HO dropped the #3 & #4 cylinders (zero compression). Motor has 250hrs on it and was serviced at the dealer last fall. Was running down the lake and just lost power. No alerts or alarms and had good water pressure. Generally cylinder failure is from over heat or lack of lubrication - the crazy thing is that the other 4 cylinders are still at 120psi.
    I really didn’t think my post was hard to read so I’ve tried to be more descriptive - sorry for any confusion.
    Last edited by 374v; 06-12-2022 at 01:15 PM.

  2. Member
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    #2
    Please explain what you mean by “dropped” cylinders and cylinders “die”.
    Are these cylinders misfiring or have you performed compression tests and compression is low?

  3. Member
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    #3
    Post updated - zero compression on the 3 & 4 cylinders

  4. Member
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    Apr 2014
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    #4
    injectors leaned out and scored cylinder walls maybe? or oiling issues? any metal seen on compression tester hose from cylinders?
    Last edited by mactlman; 06-12-2022 at 05:41 PM.
    2022 z519 cup 225 merc 4s ser # 3B210484. 2--hds12 live units. 2 poles, atlas plate, ghost, hamby's, active target, merc digital gauges
    2002 basscat pantera 3 (dad bought new) sold 8-2-22
    2000 stratos 20 ss (bought new) 200 hp Rude ficht great boat/motor sold 11-21
    pulled by a 2500HD Denali
    proud dad of an ARMY Captain
    MAGA
    ASE/GM Master tech before tools

  5. Member
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    #5
    Got to take to it apart now to see what has happened

  6. Member
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    #6
    Gonna pull it off and re-power, sell the whole thing with controls for parts
    I spun the prop and heard a noise - found a wrist pin, bearing cage and an un-identified metal part in the exhaust housing

  7. Member
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    #7
    No metal in the cylinder

  8. Member
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    Apr 2014
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    SW, Ohio
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    #8
    could get a power head or have chris carson rebuild it but need to find out what caused the issues first also
    2022 z519 cup 225 merc 4s ser # 3B210484. 2--hds12 live units. 2 poles, atlas plate, ghost, hamby's, active target, merc digital gauges
    2002 basscat pantera 3 (dad bought new) sold 8-2-22
    2000 stratos 20 ss (bought new) 200 hp Rude ficht great boat/motor sold 11-21
    pulled by a 2500HD Denali
    proud dad of an ARMY Captain
    MAGA
    ASE/GM Master tech before tools

  9. SC Club Moderator ChampioNman's Avatar
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    Crawfordville, FL/Lake Hartwell, SC
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    #9
    Internals became externals.