Winterizing 1995 330 DA 7.4L V-Drives

Discussion in 'Newbie Lounge - NEW' started by SkiPharmer, Aug 11, 2015.

  1. SkiPharmer

    SkiPharmer Member

    Jul 27, 2014
    St. Croix River, MN
    "Apres Ski" is a 1995 Sea Ray Sundancer 330, Twin 454 MerCruiser V-Drives
    Twin 7.4 Liter Mercruisers V-drives

    I have a 1995 330DA with 7.4L Hurth V-drives with Kohler Genny. I bought the boat last August and had impellars, complete igition tune up and carbs rebuilt. Boat runs solid. I am not handy but I do keep up on all the preventative maintence I can. This Fall when I have my marina winterize is there anything else I need to do besides have them winterize all the water systems, AC, etc, change the oil and filter in both engines and genny? Ive always had outdrives to maintain but now I don't. Do i need to do anything with the Hurth V-drives? How often does the oil need to be changed? Any other yearly stuff I should be doing?

    PS. I boat in Minnesota on the St. Croix River so no salt!

  2. Alegria

    Alegria Well-Known Member

    Feb 21, 2009
    Lancaster,PA Boat: -Sue Creek, MD
    2000 410 DA
    3126 CAT
    That is all I do for winter lay up. I usually do the water my self. The AC I let the marina do, but it's not difficult you just need to find a simple pump to pump antifreeze in reverse from the bow through hull till it come out of the under water through hull. Still looking to put something together to do this. The AC pump motor is magnetic so the reverse flow of anti freeze is not an issue there.

    For water I drain the tank, then open the hot water heater outlet, let it drain while the pump is running to push out the water. Once empty I by pass the water heater by disconnecting the hot and cold connections and putting them together with a short piece of pex tubing. Then pour in 3 gals into the water take, turn on the water pump and starting in the cabin open each faucet till it runs solid antifreeze. Get all of the them including your fresh water wash down, transom shower, cockpit sink. If you have an ice maker let it cycle a few times with anti freeze, or you can unscrew it pull is out, disconnect the water line and let it run until pushed out all the water.

    That is about it.
  3. rcknecht

    rcknecht Active Member

    Mar 23, 2009
    toms river,nj
    340 Sundancer 2001
    T 454 MPI
    Anti-freeze in your sink drains, show sump, fwd bilge pump, and waste tank... Drain you Hot water heater before your winterize... Don't forget you no-damp containers.
  4. Molson

    Molson Active Member

    Aug 5, 2011
    Midland, ON
    1997 330 DA
    Twin 7.4 carb V-Drives
    an old bilge pump works great for that.

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