Winterize engines

Discussion in 'Winterizing' started by msballin, Nov 12, 2019.

  1. msballin

    msballin Member

    251
    May 30, 2008
    Islip Terrace, Long Island
    2000 340 Sundancer
    Twin 7.4L Horizons w/ Hurth V-Drives
    Been raining all day and haven't been able to get in bilge to winterize engines. Temps tonight dropping to mid 20's F. Do I risk any damage if I wait til morning as the sun is fading. I'll gladly work under the lights when rain starts if that is suggested. Thx in advance.

    Mike
     
  2. Strecker25

    Strecker25 Well-Known Member

    Nov 20, 2014
    Rochester, NY
    2002 410DA
    Caterpillar 350HP 3126
    How long in the 20's? You need extended time to do any real damage. Safest bet would be to pull the plugs and let water drain out but I don't think you'll be at much risk
     
    msballin likes this.
  3. msballin

    msballin Member

    251
    May 30, 2008
    Islip Terrace, Long Island
    2000 340 Sundancer
    Twin 7.4L Horizons w/ Hurth V-Drives
    Thx for quick reply. About 12 hrs. This concern is for raw water jacket around closed cooling system w antifreeze (fresh water cooled horizons)
     
  4. dwna1a

    dwna1a Well-Known Member PLATINUM Sponsor

    Apr 23, 2012
    James River
    88 Weekender 300 "Seahorse"
    Twins 350
    Is the boat still in the water and how cold is the water temps?
    20's here tonight but the water temps are still in the upper 40's. These water is a great insulation.

    I'm kinda in the same boat so to speak. I did run down yesterday and plug in my bilge heater and cover my vents
     
    msballin likes this.
  5. Strecker25

    Strecker25 Well-Known Member

    Nov 20, 2014
    Rochester, NY
    2002 410DA
    Caterpillar 350HP 3126
    12 hours is a bit of a stretch if it’s truly in the 20s the whole time

    I’ve heard folks having good luck by stuffing towels in the vents and just putting a incandescent shop light in there to keep a little heat going.
     
    msballin likes this.
  6. Chris-380

    Chris-380 Well-Known Member

    Jan 20, 2019
    Pontoon Beach IL
    2000 380 Sundancer
    7.4L Horizon w/V drives
    Maybe run your engines til they warm up, then do the same in the morning?
     
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  7. msballin

    msballin Member

    251
    May 30, 2008
    Islip Terrace, Long Island
    2000 340 Sundancer
    Twin 7.4L Horizons w/ Hurth V-Drives
    Boat on the hard...and yes I agree w water temp would be no worries. Lazy Daze mentioned the incadescent bulb as well. Going to rig something up and stuff the vents. Thx much
     
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  8. msballin

    msballin Member

    251
    May 30, 2008
    Islip Terrace, Long Island
    2000 340 Sundancer
    Twin 7.4L Horizons w/ Hurth V-Drives
    Big thanks to all for your suggestions. Stuffed vents and placed 60W incadescent lamp between engines. Outside temp this morn 22...bilge temp 34. Grateful. Wishing all an easy winter and great holidays.

    All the best to yas!

    Mike
     
    Chris-380 likes this.
  9. KevinC

    KevinC Well-Known Member

    Feb 25, 2011
    Long Island, NY
    2004 340 Sundancer
    Twin 8.1 V-drives
    You should have no problem. I left a water bottle in my car overnight in these temps and it was not even slushy this morning. In the future on the 8.1s you can use the air bleed system if available and drain via the blue plugs. I would not leave it all winter but the more water that is out the less you have to worry.

    I am usually more concerned about my fresh water systems on board during these early snap freezes. That is why I winterize them right away.

    -Kevin
     
  10. Strecker25

    Strecker25 Well-Known Member

    Nov 20, 2014
    Rochester, NY
    2002 410DA
    Caterpillar 350HP 3126
    Im always amazed at the difference inside vs out on these cold days. I'm obsessive so I leave a thermometer inside the bilge all year - the minimum temps are never anywhere near what they are measuring outside.
     
  11. msballin

    msballin Member

    251
    May 30, 2008
    Islip Terrace, Long Island
    2000 340 Sundancer
    Twin 7.4L Horizons w/ Hurth V-Drives
    I've the last year of the 7.4's and not familiar w any air bleed system. Hmmm... But, pink going through today and I concur w fresh water systems on board. They get winterized at the marina before I bring her home. 1st time in 11 years this happened. Good to have alternate plans. Thx. BTW..where are you docked in season?
     
  12. KevinC

    KevinC Well-Known Member

    Feb 25, 2011
    Long Island, NY
    2004 340 Sundancer
    Twin 8.1 V-drives
    Sorry the air bleeder may only be on the 8.1s. Otherwise, you may just need to drain without pressurizing.

    -Kevin
     
  13. JVM225

    JVM225 Well-Known Member

    Apr 8, 2008
    Farmingdale, NY
    2002 410 Sundancer, Monaco Edition.
    3126 Cats.
    For the future: If you have access to electric you may want to look in to picking yourself up one of these.

    https://www.boatownersworld.com/xtreme-large-600-watt-xxxheat-boat-bilge-heater.html

    They are thermostat controlled so will only come on when needed.
    I’m still in the water, but put mine in the bilge yesterday afternoon just for peace of mind after having small patches of ice on my dock. It’s very unlikely that it even kicked on, but I had a good night’s sleep.
     
  14. msballin

    msballin Member

    251
    May 30, 2008
    Islip Terrace, Long Island
    2000 340 Sundancer
    Twin 7.4L Horizons w/ Hurth V-Drives
    Thank you for this. Never considered as weather in early November is usually not like this. But....will most likely grab one. Peace of mind .. valuable!
     
    JVM225 likes this.

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