Engine removal....

Discussion in 'General Maintenance/Repair Questions' started by seatray, Feb 28, 2020.

  1. seatray

    seatray New Member

    Nov 17, 2014
    2000 searay 270 da, a few gizmos but you'd be jealous
    4.3efi mercruisers
    Hi all, is there anyone that knows how to remove the starboard engine (drivers side) of a searay270DA 1999? Is there any drawings and kit I need as it looks like I need to drop it out to check if the pistons have seized like a mechanic had told me. Will I need any special tools etc as don't fancy using these guys again as I think they have told me fibs and don't want to get a new engine just yet! Also where is the engine serial number so I can get the right spares etc. oh and do I need to drop the leg off first? I cant find any wiring and / or step by step guide to remove the block.
    thanks in advance
  2. Siboatguy

    Siboatguy Active Member GOLD Sponsor

    Mar 28, 2016
    2004 Sea Ray 240 Sundancer
    1999 Sea Ray 290 Sundancer
    2005 Sea Ray 320 Sundancer
    Twins V-Drives
    2017 5.7 Mercruisers
    your kidding me right... lol.....Keep you mech...
    MattB92 likes this.
  3. b_arrington

    b_arrington Well-Known Member GOLD Sponsor

    Feb 21, 2007
    Setauket, NY
    2018 Back Cove 34
    Cummins QSB 6.7 480
    With all respect to whatever mechanical skill you have, with your description and request you appear to have very limited diagnostic and/or repair experience.

    I dare say that advising an inexperienced person in how to remove and repair a seized engine from is beyond the scope of even this group’s extensive knowledge. You may want to consider getting a second option before tearing into the engine yourself.
  4. Strecker25

    Strecker25 Well-Known Member

    Nov 20, 2014
    Rochester, NY
    1998 290 Sundancer
    Twin 5.7EFI/Alphas, Kohler 4kw
    Even if you know how to diag and rebuild a motor, pay a marine mechanic to yank it and drop it back in. Sounds like it’ll save you loads of grief and it won’t cost too much if you do the grunt work of removing the hatch and anything else that’s physically in the way.
  5. Henry Boyd

    Henry Boyd Well-Known Member GOLD Sponsor

    Apr 24, 2007
    Newburyport, on the peaceful and serene Merrimack
    ‘09 Sabre 38 Hardtop Express “Serenity”
    Volvo D6 w/IPS450 Pods
    Yes, there is a very valuable special tool you will need; experience from having done it before. Have an experienced marine mechanic pull the engine for you, and then put it back for you. Personally, I’d let a mechanic do the whole thing. Twenty year old raw water cooled boat engines could have a whole host of things wrong with them in addition to whatever is keeping it from running. If you think your current tech is not on the up and up, try another guy.
    techmitch and b_arrington like this.
  6. DWABoat

    DWABoat Well-Known Member

    Aug 13, 2019
    S Louisiana
    2001 280 Sundancer
    1989 220CC Cuddy Cabin
    Twin 4.3 w/Alpha Ones
    5.7 Mercruiser Alpha One
    I have pulled/replaced three small block engines from boats under the tutelage of a 25-year certified marine mechanic. I would have screwed things up royally had I attempted them on my own.

    I feel I could do it now with only minimal help.
    Heed the advice of these seasoned experts - it does not look complicated, but there are many nuances and special procedures that can cause serious problems later.
    techmitch likes this.
  7. seatray

    seatray New Member

    Nov 17, 2014
    2000 searay 270 da, a few gizmos but you'd be jealous
    4.3efi mercruisers
    cheers guys, I wasn't intending on doing the work as like mentioned there's a host of issues plus I don't have all the tools. this has come from a mech that washed his hands of a look to another 'qualified firm' that gave me the nod it was seized... bear in mind it was working 2 months prior ( bottom end oil like new - their words) so think it may be the valves and slight seize. I'd rather not remove the engine full stop but need to get an idea of what may be wrong as feel i'm getting the run around and the last mechs didn't do what they were meant to do (diesel in pistons etc to loosen heads up). Always used approved mercury mechs but getting hold of them is hard here and when you get mates comment 'how hard can it be?'' doesn't instill reassurances lol.

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