5.0 efi winterizing question

Discussion in 'Winterizing' started by Jeff Delbuono, Sep 27, 2018.

  1. Jeff Delbuono

    Jeff Delbuono Active Member

    Jun 11, 2018
    Edison new jersey
    1998 sea ray 290 sundancer
    5.0 efi
    I have a 1998 290 sundancer with twin 5.0 efi. It is stored in new jersey outside under shrinkwrap. I will be winterizing it soon but plan over the winter to install new manifolds and risers to both motors. Not over heating but boat is new to me this year and not sure when they were done last. After i do my install do i have to add anything to them? Not gonna run motors till spring but was just wondering that after i take old off am i going to loose all the antifreez.
  2. Espos4

    Espos4 Active Member

    Jan 1, 2017
    Long Island NY
    2007 240 Sundeck
    350 MAG Bravo 3 W/DTS
    You’ll lose a good amount of antifreeze when you remove them.

    You could drain the system and refill it once the new exhaust is installed.

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