Official 2003.5-2008 340 Sundancer Thread

Discussion in 'Sport Cruisers' started by Zorba, May 17, 2013.

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  1. liv2ryde100

    liv2ryde100 Member

    329
    May 17, 2012
    long island
    05' 340 dancer
    Twin 8.1's
    Not sure but my hot water doesn't last as long as I feel like it should either.was gonna just replace the whole damn thing eventually
     
  2. mjoplin

    mjoplin Member

    118
    Oct 10, 2016
    Houston, TX
    2005 Sundancer 280
    Twin 4.3 Mercruiser
    That's a bit odd. I would suggest taking that thing out of the mix and bypass it to see what you get. With a new element you should be getting hot water. Do you get good water flow through the faucets? On mine it is just input and output lines connected directly to the heater.

    The issue I had with mine was on the input side. The brass connection that screws into the heater has a one way valve to keep hot water from backflowing into the cold lines. I took it off and soaked it in white vinegar for a while to free it up and it fixed my issues.

    What happened with mine was frustrating. I would turn on the hot faucet (any), and water would trickle and stop flowing. It turned out to be that one way valve. First issue on the boat that didn't cost me anything other than a cup of vinegar out of the pantry....


     
  3. villain style

    villain style Well-Known Member SILVER Sponsor

    Oct 10, 2006
    Mears Point Marina Kent Island, MD
    2006 44 DA
    QSC 8.3s
    Cummins QSC 8.3s 500HO
    Ok. That part was the issue. I found I could get a rebuild kit from another user here, watts lf 70a and a rebuild kit. I also saw some members say they took it out completely. I ordered the part but removed the inner thermostat part completely to test. I have hot water. Wife very happy. Me too. I'll put new part in when it arrives.


    Sent from my iPhone using Tapatalk
     
  4. Jeremygavin

    Jeremygavin Member SILVER Sponsor

    728
    Mar 6, 2012
    Cape Cod, MA
    2011 520 Sedan Bridge
    2016 Sea Ray 19 SPX OB
    Cummins QSM11s
    Mercury 150 Fourstroke
    It is called a mixing valve. It is in place so that you don't get scalded with hot water. It mixes cold water in with the hot water as it coke out of the water heater so that it keeps the hot water coming out under a certain temp. I wouldn't remove it completely because if you make a run with the boat the port motor heats the hot water to around 160deg (that's the temp the motor is running at) that is substantially hotter than a home water heater, plumbing code is 108deg but most people want it a little warmer than that. The point is 160 is very hot and it you have people (especially little ones on the boat) and they turn on the hot water after a run it could burn them.
     
  5. villain style

    villain style Well-Known Member SILVER Sponsor

    Oct 10, 2006
    Mears Point Marina Kent Island, MD
    2006 44 DA
    QSC 8.3s
    Cummins QSC 8.3s 500HO
    Thank you for that information


    Sent from my iPhone using Tapatalk
     
  6. liv2ryde100

    liv2ryde100 Member

    329
    May 17, 2012
    long island
    05' 340 dancer
    Twin 8.1's
    I'm having an interesting issue. No a/c coming outta the vent in the bathroom. Comes out fine everywhere else. The duct seems to be attached at the back, any ideas?
     
  7. Korkie

    Korkie Active Member SILVER Sponsor

    223
    Feb 2, 2016
    Leonardtown, MD Potomac River / Chesapeake Bay
    340 Sundancer 2006, Garmin 7612, xHD Radome
    Merc 496 Mags, Bravo III Drives
    Maybe stopped up by a varmint of some sort and or its nest ?
     
  8. liv2ryde100

    liv2ryde100 Member

    329
    May 17, 2012
    long island
    05' 340 dancer
    Twin 8.1's
    I guess I have to pull the vent cover off and put my hand in there lol
     
  9. Quint4

    Quint4 Well-Known Member TECHNICAL Contributor SILVER Sponsor

    Oct 6, 2006
    S.W. Ohio
    330 Sport Bridge
    5.7 MPI 350 Merc Bluewaters
    I just finished up Infinity Woven PVC flooring on another 340 (I have done 7 of them now).

    Some pics:

    cabin2.jpg
    cockpit.jpg
    IMG_3381.jpg
    IMG_3398.jpg
    IMG_3403.jpg
    IMG_3405.jpg
     
  10. Jon Paul

    Jon Paul Member

    103
    Sep 24, 2013
    Phoenix
    2006 Sundancer 340
    8.1 V drives
    Awesome! What a great idea to install inside! : )
     
  11. Irie308

    Irie308 Member SILVER Sponsor

    725
    May 28, 2013
    CT
    Boatless and currently in search of 420 or 480 DB
    350 Mercruisers V-drives
    Looks great, i thought about putting that down in the cabin to replace the canvas cover. The kids are brutal on the carpet. PM me pricing for the cabin on a 320 if you don't mind.
     
  12. Caseclosed

    Caseclosed Member SILVER Sponsor

    100
    Jul 17, 2012
    SW Florida
    2008 34 Sundancer 310 West marine dingy Raymarine Axiom 9RV Quantum doppler radar
    8.1 Mercruiser V Drive
    Hi all

    Just signed a contract on a 2008 34 Sundancer.Please reply with any recommendations and suggestions or things that I should be aware of at time of survey.Thank You in advance
     
  13. JustRight

    JustRight New Member

    10
    Aug 4, 2013
    Seneca Lake, NY
    2005 Sea Ray 340 Sundancer
    1994 Bayliner 2655 (sold)
    1996 Renken 190 open bow
    Twin 8.1 MPI inboards
    My best advice would be to use a competent surveyor with a solid reputation - it's worth the $$$. The surveyor that went through our 340 prior to completing the sale in 2013 went through the boat with a fine tooth comb. He spent about 8 hrs on the boat, both on the water and on the hard. He issued a 20-25 page report when he completed the evaluation of the boat. The short answer, "things I should be aware of at the time that of the survey?" is "Everything." Since it's impossible for most of us at the the time of purchase to know "everything" the surveyor becomes that much more important. He works for you, not the broker. I know my boat extremely well now that I've owned it a few years, but I sure didn't know much about it when I bought it. The survey was crucial.
     
  14. dsteele1

    dsteele1 New Member

    325
    Apr 27, 2008
    San Diego
    Previous: 260 Sundancer 2006
    350 MAG MPI Mercruiser w/Bravo III Drive
    Looking at getting back into boating as I now live in San Diego again... 2004 to 08 340 seems like a doable boat on the bay and for coastal cruising. Question: How durable are the (ZF) Transmissions on these V Drives.. what service do you need to do to them? I figure changing Trans Fluid once every 300 hours. I assume from the threads V Drives are the ONLY way to go docked year around in salt water??? Any help most appreciated!!! Divers that change zincs inwater and clean the bottom of your boat... what a concept!!!
     
  15. Sea buzz

    Sea buzz Member

    36
    Oct 11, 2015
    Lake Champlain
    2006 340 sundancer
    8.1 vdrives
    Anyone know what led bulbs I can use in the cockpit of an 06 340. And also where to buy them. Thank you
     
  16. Mittens

    Mittens Active Member

    465
    Mar 5, 2017
    Huntsville, AL
    2002 340 Sundancer, All Cherry Cabin, Black Canvas.
    8.1 Mercs, V Drives, 4.5kw Westerbeke.
    42mm fooson for over head, and shorty 3156?s for the floors on a 2002 430
     
  17. Johnnydee

    Johnnydee New Member

    6
    Aug 17, 2015
    new jersey
    2004 sundancer 340
    Raymarine c80
    twin 8.2 merc inboards
    Lost anchor Please help. I know there are some posts out there regarding this topic but there not many. I'm hoping there's some new info out there. I have a 2004 340 da. Lost my anchor. I've been doing some research it seems like i had a Kodiack but I need to call searay back with hull number to be sure. But over weekend I tried a delta 22 lb and this doesn't fit. It hits the bow before all the way up. I was thinking maybe he 35 lb would work but not sure. I did call south coast marine today (they make the kodiak) they told me 5-7 weeks they also want me to be sure that's what boat was built with. I'm working on that as stated above. Let me know if anyone has any other ideas. Thanks
     
  18. 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
    41mm or 42mm festoon bulbs will fit. Any LED source including eBay or Amazon. Blue is very popular but not as bright when you need to see what you are doing.

    My 2004 340SDA had Perko's all around and took the same bulb although I replaced them with tri-color sealed LED fixtures. I got these from Amazon.

    -Kevin
     
  19. 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
    Great boat but we're a little biased here.

    There are pluses to both v-drives and stern drives. The stern drives offer more performance and better fuel economy. V-drives offer better near dock maneuverability and are more economical from a maintenance perspective.

    The Bravo 3's for stern drives were known for corrosion issues however if properly maintained will hold up for a long time.

    -Kevin
     
  20. 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
    http://www.searay.com/boat_graphics/electronic_brochure/Company1729/1C1_24_74DEIPR7EIA.pdf

    Look at page 2. Looks like a 25 lb plow.
     

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