Thread: Re-break in?

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  1. #1
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    Re-break in?

    Well, thanks to all of your help I am at a point were I will be putting the boast in the water for its maiden votage on Friday, THANK YOU!!
    My question is: I am going to assume the engine has ben sitting for atleast 6 months and as much as a year, is there a "re-break in" process?Common sence tells me not to hammer it right of the bat, but am I safe to work my way up to WOT on the maiden voyage?

    THANKS AGAIN!!!!



    Sean

    2003 225 EFI (New Power HEad in 2006)

  2. Moderator
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    #2

    Re: Re-break in? (SeanR)

    There are many other factors but my main concern would be how bad is the gas that's been sitting that long.
    Bad fuel can burn a piston in a heart beat, especially running it hard.



  3. Mercury 3L/4 Stroke/Verado Moderator EuropeanAM's Avatar
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    #3

    Re: Re-break in? (SeanR)

    +1

    Verify that you have CLEAN, FRESH FUEL. Don't attempt to run 6-12 month old fuel through your engine!

    Once you've done so.... and checked everything over (ALL MAINTENANCE ITEMS SHOULD BE VERIFIED), launch and start the engine.

    Allow it to warm up adequately.

    Accelerate SLOWLY..... monitoring water pressure and warnings.

    I would recommend running the engine up to 2500 RPM's for 1 minute, and then 3500 for several minutes.

    If all is well, gradually increase RPM's while monitoring carefully.

    Don't forget to allow the engine to idle for at least 60 seconds prior to shutdown.

    Good luck!



    Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
    Still consider myself a "Marine Apprentice" after 48 years (learn something new every day).
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  4. Member
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    #4

    Re: Re-break in? (EuropeanAM)

    Fuel tank was drained about two months ago, and then I put about 45 gallons of treated fuel, so I am all set there..
    THanks for the tips on the RPM range/times and I was not aware of the 60 second "cool down" period before shutting down, THANKS!!
    What is the reason for the 60 second cool down??

    THANKS AGAIN!!!



    Sean

    2003 225 EFI (New Power HEad in 2006)

  5. Member
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    #5

    Re: Re-break in? (SeanR)

    "What is the reason for the 60 second cool down??"

    Never mind, I found the answear.. THANKS!!



    Sean

    2003 225 EFI (New Power HEad in 2006)

  6. Member
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    Söderbärke, Sweden
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    #6

    Re: Re-break in? (SeanR)

    The engine is very hot inside so it´s good to let the temperature level before shutdown.
    Hope you understand my english

    http://www.bbcboards.net/zerot...water

    /
    Bola........

  7. Member
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    #7

    Re: Re-break in? (Bola)

    Loud and clear! Thanks Bola!!



    Sean

    2003 225 EFI (New Power HEad in 2006)

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