Official 2003.5-2008 340 Sundancer Thread

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

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  1. Korkie

    Korkie Active Member

    Feb 2, 2016
    Leonardtown, MD Potomac River / Chesapeake Bay
    2006 340 Sundancer, Garmin7610, xHD 24" Radar, VV703, SeaStar Hydraulic Steer, Shadow Drive AP
    Mercruiser 496 Mags
    Bravo III Drives
    Welcome. The 340 is a great boat. We have had ours since 2015 and love it. Have done several upgrades, most of what we learned about on this site. Enjoy.
     
    John Lafond and Tripsdad like this.
  2. Korkie

    Korkie Active Member

    Feb 2, 2016
    Leonardtown, MD Potomac River / Chesapeake Bay
    2006 340 Sundancer, Garmin7610, xHD 24" Radar, VV703, SeaStar Hydraulic Steer, Shadow Drive AP
    Mercruiser 496 Mags
    Bravo III Drives
    onthejob - Not sure if you have come up with a solution as yet. We added a 3rd battery to our stbd bank (just enough room) and moved a few postive wires around in the power distribution panel. We currently have a small 750w inverter that is in the power panel in the cabin tucked behind the drawer just under the panel. This is wired direct to the stbd batt bank and then to the accs outlets. Has a relay on the circut so that any time power is present, via shore power or genny, it shuts itself out of the system. It appears to be an add on by the original owner. Not sure. Thinking about upgrading this to a 2000w and mounting it in the cabinet in the midberth on the left side adding a couple of attractive vents to the doors to vent unit. Current unit powers up with the fwd accs switch on the push pad at the helm and the relay is behind the cockpit helm spkr assembly. We also added a battery monitor to that bank to keep and eye on power draw. Just a thought you may want to consider.
     
  3. John Lafond

    John Lafond New Member

    3
    Jan 9, 2023
    Bluffton, South Carolina
    2003.5 Sundancer 340, Garmin GPSMAP 982, soon to be upgraded to Garmin 860xsv
    8.1 Mercruisers - V-Drives
    Thank you Kevin - I will definitely look at your website. Your TV post is what inspired me and is bookmarked!
     
  4. John Lafond

    John Lafond New Member

    3
    Jan 9, 2023
    Bluffton, South Carolina
    2003.5 Sundancer 340, Garmin GPSMAP 982, soon to be upgraded to Garmin 860xsv
    8.1 Mercruisers - V-Drives
    Thank you, Rob - looking forward to many new adventures and this forum.
     
  5. Hilary Timmis

    Hilary Timmis New Member

    6
    May 16, 2020
    Huron, Ohio
    340 Sundancer 2005
    Mercruisers
    Greetings. Any suggestions on where to find a dual mode spot/flood lens assembly for a 2005 340?
     
  6. KevinC

    KevinC Well-Known Member

    Feb 25, 2011
    Long Island, NY
    2004 340 Sundancer
    Twin 8.1 V-drives
    This is the one I picked up on Amazon last year! You will need to change the ends on the wire to .25 female spade and the connectors are in a different orientation for the positives and negative but it is pretty easy to figure out.


    upload_2023-3-25_16-35-9.png upload_2023-3-25_16-35-55.png


    -Kevin
     
  7. eheath19

    eheath19 New Member

    8
    Sep 20, 2022
    Boatless
    8.1
    Quick question I just tried to turn on my Mercury smart craft and its asking for a key code. I didn't get anything from the previous owner and it was fine at the end of last year. Just wondering if anyone has run into this before.
    Thanks
     
  8. Cory Hart

    Cory Hart New Member

    16
    Sep 1, 2020
    Neabsco Creek, VA
    Remedy
    2004 340 Sundancer
    Twin 8.1 Horizon's
    Hello! Looking for advice/info on the hatch rams/lifts. Mine have been making this horrible noise, like there's rocks in the system when going up or down. I've searched the forum for anyone else that has experienced this and while is a post or 2, I can't seem to find anything that says it's normal or that they are going bad - nothing. I've owned the boat for 3 years and it's been making this noise since i bought it. Hard to believe that mine are the only one's here that have this issue. If anyone has experience this, determined the problem and fixed it I would love to hear from you.

    Thanks
     
  9. KevinC

    KevinC Well-Known Member

    Feb 25, 2011
    Long Island, NY
    2004 340 Sundancer
    Twin 8.1 V-drives
    Might not help at this point but have you tried greasing them? They are basic just big screws being turned by the motor. Some people have taken them apart and cleaned them out (I personally have not).

    Also they release pins also tend to creak a little if they picked some oxidation as they rotate a little as the hatch lifts.

    -Kevin
     
    Tripsdad likes this.
  10. Cory Hart

    Cory Hart New Member

    16
    Sep 1, 2020
    Neabsco Creek, VA
    Remedy
    2004 340 Sundancer
    Twin 8.1 Horizon's
    Appreciate the response, Kevin. I have not done any maintenance on them so I will take the opportunity to grease them and see what that does. The noise is loud. Like putting gravel in a coffee can on a rotisserie; best way I can describe it. Probably not the pins., but maybe.

    I assume yours don't make any noise outside of normal mechanical noise from the motor doing its job!?

    Cory
     
  11. ttmott

    ttmott PhD in OCD TECHNICAL Contributor

    Apr 3, 2012
    Space Coast Florida
    2006 52 Sedan Bridge
    Cummins QSM11
    There is a clutch in the system to prevent damaging something and it makes quite the grinding noise.
    The rams are easy to take apart and clean. I think you will find the rod seal to be the culprit. That seal becomes gooey and sticky and will not allow the rod to slide smoothly in and out. Also the aluminum cylinder cap has grooves the seals sit in and they get corroded and prevents the seals from working correctly. I fixed both the window and engine hatch actuators on my 400DA - same problem on both.
     
    Chris-380 and Tripsdad like this.
  12. Jesse Wichelhaus

    Jesse Wichelhaus New Member

    8
    Aug 8, 2022
    Waretown, NJ
    2007 Sundancer 340
    8.1L with V-drives
    Try Progressive Automation actuators. They have a few systems that will work as a refit to the OEM system. Finding the exact replacement lifts is very very hard.
     
  13. Korkie

    Korkie Active Member

    Feb 2, 2016
    Leonardtown, MD Potomac River / Chesapeake Bay
    2006 340 Sundancer, Garmin7610, xHD 24" Radar, VV703, SeaStar Hydraulic Steer, Shadow Drive AP
    Mercruiser 496 Mags
    Bravo III Drives
    Sea Ray has just started stocking actuators again. I just purchased one from Prince William Marine with a manufacture date of March 2023. Although I had to return it due to a defect, they are supplying them again.
     
  14. Larry Gee

    Larry Gee New Member

    22
    Mar 4, 2021
    North Myrtle Beach SC
    340 Sundancer 2006, Garmin 840xs, Garmin HD radar, Garmin GHC20 AutoPilot, Bow Thruster, AIS 800
    Twin 8.1S Horizon V-Drives
    April / May 2023 Updates -
    - Garmin AIS 800
    - Reworked the NEMA 2000 backbone w/2 4 outlet backbone
    - New outside fridge replacement - Norcold 740SS
     

    Attached Files:

  15. Tacoma290

    Tacoma290 Active Member

    492
    Oct 5, 2006
    Tacoma, WA
    340 Sundancer 2007
    Twin 8.1 V-drives
    Quick question: Are both of the 8.1 engines standard CW rotation?
     
  16. Siboatguy

    Siboatguy Active Member GOLD Sponsor

    482
    Mar 28, 2016
    Holmdel,NJ
    1999 Sea Ray 290 Sundancer
    2005 Sea Ray 320 Sundancer
    2005 Sea Ray 340 Sundancer
    Twins V-Drives
    8.1 Mercruiser
    Yes I believe so... The difference is in the Trans
     
    Tacoma290 likes this.
  17. Hilary Timmis

    Hilary Timmis New Member

    6
    May 16, 2020
    Huron, Ohio
    340 Sundancer 2005
    Mercruisers
    Thank you. Bought and installed it. Easy peasy. Got one for my boat neighbor with an 04 340.
     
  18. KevinC

    KevinC Well-Known Member

    Feb 25, 2011
    Long Island, NY
    2004 340 Sundancer
    Twin 8.1 V-drives
    Thanks - I am glad the info was helpful!
    I have done a couple of these for friends too!

    This is replacement was not specific to 340 Sundancers and it retains the high-low feature.

    I still prefer a handheld but hate when things don't work on the boat.
    It does work great for lighting the forward deck at night for cleanup.

    -Kevin
     
    Tripsdad likes this.

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