New to winterizing a cruiser

Discussion in 'Winterizing' started by rh320, Oct 8, 2018.

  1. rh320

    rh320 Member

    98
    Mar 2, 2018
    Chesapeake Bay
    2005 320 Sundancer
    350 Mercruiser
    Good evening, all. Hoping to find some advice on how best to winterize my 320DA 5.7l v-drives.

    This boat is very different from my small bowriders so looking for some solid instructions on how to winterize the boat. Im confident that I can do it just worried I might miss something and cause big and expensive problems.

    If you could share the steps and processes that you take to completely winterize your boat that would be great!
     
    Express 390 and Southern Cross like this.
  2. Southern Cross

    Southern Cross Member

    38
    Jul 29, 2013
    Alexandria, VA
    2005 320DA
    Twin 350 MPI, V Drives
    Same here. Any advice or instructions would be appreciated.
     
  3. paulswagelock

    paulswagelock Well-Known Member

    Oct 25, 2010
    pa
    2018 SDX 270 OB 300 Verado
    Verado 300
    Start attacking it by individual systems. Generally on a cruiser you will need to winterize engines, generators, ac system, cold water system, hot water system, gray water system and black water system.

    None of them are hard to do, but each different, and specific to your brand and model. Pick a system and systematically research how to correctly perform the winterization task.
     
  4. Express 390

    Express 390 Member GOLD Sponsor

    84
    Sep 14, 2018
    South Shore of Long Island NY
    1986 SeaRay 390 EC
    Twin 454 Crusaders inboards
    1) Drain the hot and cold water. Open the drain valve on the Hot water heater too let that completely drain.

    2) Take the cold water line (blue in color) going to the water off at the heater, Do the same with the hot water line (red in
    color) at the heater. Twin those two lines together. Put 2-3 gallons of pink Antifreeze into the water tank, Turn on the water pump till it stops open each faucet one at a time till pink comes out and your done !

    3) The head ! Make sure you have pumped out. Flush 3 gallons of Antifreeze into the toilet, If you have a discharge pump
    I would run a little threw that and then thats done.

    4) Put ears on the outdrive flush the motor. Then fill a 5 gallon pail with Antifreeze. With a short piece of hose from the ears and into the pail start the motor when pink comes out your exhaust ports your done !

    5) The A/C ! Get a small pony pump or even one that hooks up to a hand drill. Pump the antifreeze into the A/C discharge
    hole on the side of the boat when pink blows out the A/C intake at the bottom of the boat your all done.

    Good Luck
    Les
     
    Southern Cross likes this.
  5. Espos4

    Espos4 Active Member

    513
    Jan 1, 2017
    Long Island NY
    2007 240 Sundeck
    350 MAG Bravo 3 W/DTS
    Les, According to the OP, and southern cross, they both have V-drives.

    You’ll have to do some research and find the proper way to winterize the raw water side of your cooling system.
     
  6. electricaldoctor

    electricaldoctor Well-Known Member TECHNICAL Contributor PLATINUM Sponsor

    May 14, 2008
    Thousand Islands, Rockport, Ontario.
    1988 390 EC
    454 Mercruiser Gassers
    When you are doing the engines, let them warm up first so that the thermostats are fully open to allow the coolant to flow throughout.
     
  7. Express 390

    Express 390 Member GOLD Sponsor

    84
    Sep 14, 2018
    South Shore of Long Island NY
    1986 SeaRay 390 EC
    Twin 454 Crusaders inboards
    My mistake Just pull the intake hose off the valve and stick that into the pail it's not rocket science ! lol
     
  8. Espos4

    Espos4 Active Member

    513
    Jan 1, 2017
    Long Island NY
    2007 240 Sundeck
    350 MAG Bravo 3 W/DTS
    :)
     
  9. Spark600

    Spark600 New Member

    27
    Dec 28, 2013
    Long Island NY
    29' Amber jack with twin 5.7 Mercruiser and V drives transmission
    Kohler Generator
    Mercury dinghy
    29' Amber jack with twin 5.7 Mercruiser and V drives transmission
    Change the OIL
     
  10. Little Ducky

    Little Ducky Well-Known Member

    Jun 5, 2017
    Chattanooga TN/Dickson TN
    1998 SeaRay 290 Sundancer
    Twin EFI 5.0L w/Alpha 1 drives
    Last edited: Oct 9, 2018
    R-and-R likes this.
  11. marks737

    marks737 Member

    237
    Sep 15, 2009
    NJ
    2005 390 Sundancer
    Cummins QSB 5.9
    Get "Sea Flush". Makes winterizing very easy.
     
    importmonkey likes this.
  12. KevinC

    KevinC Well-Known Member

    Feb 25, 2011
    Long Island, NY
    2004 340 Sundancer
    1988 Proline Center Console - 90hp Mariner/Mercury
    1969 Boston Whaler
    Twin 8.1 V-drives
    Just for the engines:

    If you are on land with the v-drives then close your sea cocks and warm up the engines running fresh water from a hose feeding directly into the sea strainers. Helps to have two people for this - one at the helm and one on the hose.
    When the engines warm up we stop.

    Now, with my 8.1s we winterize the engines with a fuel pre-mix (fuel + 2stroke oil + stabilizer per Merc spec) in a portable tank that we feed directly by disconnecting the fuel line and attaching. With a 2005 you probably have a CoolFuel3 (CF3) and the 5.7s may have a different recommendation so check the manual. At this step we hook up the portable tank and run again for a couple more minutes to get the pre-mix into the engine.

    Then we drain the Vernalift (muffler) tanks and after that as (suggested above) we use a Sea Flush with the snorkel (if available) and a five gallon bucket of AF with the snorkel pickup in the bucket. Start the engine and wait once you see the pink AF run drain through the muffler you are pretty much done. Without the Sea Flush you will need to pour in the AF as fast as the pumps move it through.

    Repeat on the other engine and don't forget to winterize the genset if you have one too.

    -Kevin
     
    R-and-R, Southern Cross and gerryb like this.
  13. JVM225

    JVM225 Well-Known Member

    Apr 8, 2008
    Farmingdale, NY
    2002 410 Sundancer, Monaco Edition.
    3126 Cats.
    Starting out by changing the oil and filters is solid advice.
    I’ll add to it that you should do your fuel filters and zincs too while you’re at it, and bring a light and screwdriver down in the bilge with you because this is a great time to inspect hoses and belts and to make sure all your clamps are healthy and tight.
    Another way to do the raw water side of the engines if you have fresh water cooling, without a Sea Flush, on the hard is to take the hose off the through hull.
    Stuff it in a bucket full of antifreeze equal to the raw water capacity of your system. Have an assistant start engine momentarily while you hold the hose in the bucket. Tell the asssistant to stand by the ignition switch. Let your raw water pump pull the antifreeze in to the system. When the bucket is just about empty tell your assistant to turn off the ignition. Replace hose on through hull. Tighten clamps. Repeat for other motor and genny.
    I’ve got a Sea Flush and snorkel. It was an impulse buy. I did my genny with it last year and it was okay.
    Honestly though, I find it quicker and easier to do my motors without it.
    I do my AC units the same way that Express390 does, but start by pushing fresh water backwards through the discharge first, then cleaning the strainer.
    I do my fresh water system and water heater like he does too, but since I can easily transport my portable compressor to my dock I start by blowing the system out with about 40psi hooked up to the dockside water inlet and then opening each faucet one at a time. The same way I do my Sprinklers at home.
    Afterwards, I still put a couple of gallons of pink in the tank and open each faucet until a little pink comes out. Don’t forget your windshield washers if you have them. No need to do both blow out and pink. You can do either one. I just do both because I get anal with things.
    After pumping out my waste tank I pour about half a gallon of pink in each head and flush.
    I drain and clean my shower sumps, then pour a couple of cups of pink down the shower drains and momentarily activate the float switch in each sump.
    I pour a bit of pink around the other bilge pumps and activate them too.
     
    Last edited: Oct 9, 2018
    R-and-R and Southern Cross like this.
  14. Southern Cross

    Southern Cross Member

    38
    Jul 29, 2013
    Alexandria, VA
    2005 320DA
    Twin 350 MPI, V Drives
    Good stuff. We are going to leave the boat in the water this year (upper potomac). Any additional tips for an area that can get in the low teens for a few weeks? I plan on buying a bilge heater and winterizing after the Dec parade of lights.
     
    Little Ducky likes this.
  15. Little Ducky

    Little Ducky Well-Known Member

    Jun 5, 2017
    Chattanooga TN/Dickson TN
    1998 SeaRay 290 Sundancer
    Twin EFI 5.0L w/Alpha 1 drives
    If you are going to heat during the winter consider getting some type of monitoring system to keep tabs of how cold things get. I'm using an Acurite system with 3 sensors. Need to have internet access for it to work but there's other systems out there that use cell service.
     
    Southern Cross likes this.
  16. Southern Cross

    Southern Cross Member

    38
    Jul 29, 2013
    Alexandria, VA
    2005 320DA
    Twin 350 MPI, V Drives
    This is certainly something I want to look into. Thankfully we are close to the dock but I want the peace of mind that a monitor would provide.
     
    Last edited: Oct 9, 2018
  17. rh320

    rh320 Member

    98
    Mar 2, 2018
    Chesapeake Bay
    2005 320 Sundancer
    350 Mercruiser
    I dont know how but I missed all of your replies this week! Thanks to everyone for their input and advice!
     
  18. Creekwood

    Creekwood Well-Known Member

    Apr 26, 2009
    Oakville and Georgian Bay, Ontario
    '97 330 Sundancer, Raymarine C80 suite with radar, Mercury 310 Hypalon w/8hp Yammie 2stk
    2X 454 carbs w/ vDrives
    I winterize all the water systems on the boat but I leave the engines to my marina. I consider it insurance. If anything goes wrong and a block is cracked in spring, its their issue, not mine.
     
  19. 2006 270SLX

    2006 270SLX New Member

    20
    May 13, 2018
    2006 270SLX
    496MAG
    I have a 496mag 8.1.
    Does that cocktail mix "fog" the engine and cause it to staul?
    I plan on running antifreeze through the earmuffs so just trying to figure out if the motor will stall out before the pink has gone thru the engine.
     
  20. midexp

    midexp Active Member

    118
    Oct 5, 2016
    Harrison Township, Michigan Lake St.Clair
    1999 40' Sundancer
    454 merc
    Why go through the effort to blow out all the water from the fresh water system, then fill with red pop? I thought the purpose of blowing out the lines was to avoid putting the stinky red pop in the water system?
     

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