Official 2003.5-2008 340 Sundancer Thread

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

  1. KevinC

    KevinC Active Member

    493
    Feb 25, 2011
    Long Island, NY
    2004 340 Sundancer
    1988 Proline Center Console - 90hp Mariner/Mercury
    1969 Boston Whaler
    Twin 8.1 V-drives
    I forgot to ask if you went with wireless or wired Ethernet for the radar?
    -Kevin
     
  2. TFarber

    TFarber New Member

    9
    Oct 8, 2017
    Long Island, NY
    2005 340 DA
    2003 280 DA
    8.1 H
    I got the quantum but had them wire it.
     
  3. rmlsll

    rmlsll Member

    120
    Oct 11, 2009
    Saugatuck MI / Cape Coral FL
    340 Sundancer 2004 /
    240 Sundeck 2007 /
    10' Zodiac
    Twin 8.1 merc,. V-Drive /
    5.0 merc., bravo 3
    I had same issue awhile back. No light no turn no nothing. Changed light bulb and everything worked fine for a month, now light doesn't work but it will turn. I think I'll just stick to my handheld spotlight.
     
  4. Fly'n Family

    Fly'n Family Member

    501
    Sep 19, 2013
    TX / CO
    2002 Cruisers Yachts 3870
    2003 Boston Whaler Sport 130 w/40 hp Merc
    Twin 425hp Crusaders
    Was there some sort of a recall on this age range of 340's? Something about paint from parts getting into the fuel system/injectors?
     
  5. KevinC

    KevinC Active Member

    493
    Feb 25, 2011
    Long Island, NY
    2004 340 Sundancer
    1988 Proline Center Console - 90hp Mariner/Mercury
    1969 Boston Whaler
    Twin 8.1 V-drives
    I think you are referring to the Cool Fuel Gen3 issues on 8.1s beginning in 2005. I don't believe it's an official recall but I do know of Merc replacing them on a case by case basis. I was also told you had to go through a Merc authorized repair facility.

    -Kevin
     
  6. Espos4

    Espos4 Member

    197
    Jan 1, 2017
    Long Island NY
    2007 240 Sundeck
    350 MAG Bravo 3 W/DTS
    Merc supplies the parts, you pay for labor. Must be done through an authorized Merc service provider.
     
  7. TheBobC

    TheBobC New Member

    11
    Sep 21, 2017
    Pompano Beach, FL
    2006 340 Sundancer with Sportsman Package
    Original C80, Raymarine Radar and ST6001 Auto Pilot
    8.1 Horizons
    Does anyone know where the DSM300 might be mounted on a 2006? My cable disappears into the side hole behind the dash.
     
  8. Fly'n Family

    Fly'n Family Member

    501
    Sep 19, 2013
    TX / CO
    2002 Cruisers Yachts 3870
    2003 Boston Whaler Sport 130 w/40 hp Merc
    Twin 425hp Crusaders
    Thanks for the response. What exactly is a "cool fuel gen3?

    Have been looking at 06/07' 340's, and ran across one that the engine was rebuilt, and fuel tanks changed due to this problem.

    Is it a prevalent issue, and how does one know if a particular boat could develop this problem? Is it something a surveyor will be able to identify?
     
  9. KevinC

    KevinC Active Member

    493
    Feb 25, 2011
    Long Island, NY
    2004 340 Sundancer
    1988 Proline Center Console - 90hp Mariner/Mercury
    1969 Boston Whaler
    Twin 8.1 V-drives
    It's Merc's evolution into an integrated fuel cooler, pumps and fuel filter. It integrated the systems around the spin on fuel separating filter and introduced a cartridge filter as a replacement.

    I am not sure why this problem would be related to having the engines rebuilt and the tanks replaced. Any problem here would be between the tanks and the engine. Generally if the delamination of the CF3 occurred the paint particles flow foward toward the engine and would clog the fuel rails or injectors. I would think if they past through the injectors they would have been small enough to be blown out during the exhaust stroke.

    If all that was done on the boat I would think there is a lot more story to the boat that is not being revealed.

    More info on the problem:
    https://www.perfprotech.com/blog/te...ser-gen-iii-cool-fuel-module-service-bulletin
     
  10. Fly'n Family

    Fly'n Family Member

    501
    Sep 19, 2013
    TX / CO
    2002 Cruisers Yachts 3870
    2003 Boston Whaler Sport 130 w/40 hp Merc
    Twin 425hp Crusaders
    The whole rebuild, replace tanks on that boat ended my interest.....

    Interesting. I looked at your link, and it says:

    "All inboard 8.1 models equipped with Gen III cool fuel 1A380210 and below"

    Not sure if the number above is for a specific part, it seems to be. The boat I'm in the process of purchasing - waiting on the survey - has these 8.1 inboard engine numbers:
    -OW393911 and OW393916

    How does one find out about the "1A380210 and below" referenced above? Is that in reference to the fuel cooler? Can one see this to determine its number and see if the above is applicable.

    Apologize for the probably ignorant questions, but also want to be informed on what I'm buying when laying out 6 figures cash.
     
    Last edited: Nov 4, 2017
  11. TheBobC

    TheBobC New Member

    11
    Sep 21, 2017
    Pompano Beach, FL
    2006 340 Sundancer with Sportsman Package
    Original C80, Raymarine Radar and ST6001 Auto Pilot
    8.1 Horizons

    Answering my own question, in case someone else comes looking some day. In the cockpit, to the righ of the helm, where the speaker and cupholders are. Take that out, behind is a treasure trove of Autopilot computer, DSM300, Autopilot pump, etc.
     
  12. juggernaut1

    juggernaut1 Member PLATINUM Sponsor

    621
    Apr 19, 2015
    Perth, Western Australia
    2006 38 Sundancer
    8.1S / ZF 63V Drives
    They sound in the similar range as my serial numbers - mine are 2006. I have not had any probs with mine - although I had one module changed out due to corrosion at the raw water fittings on the module. It's my observation from forum posts that the cool fuel paint issue surfaces when you use ethanol laden fuel which we don't have in my neck of the woods in Oz.
     
  13. Michael Cooley

    Michael Cooley New Member

    8
    Oct 22, 2017
    2006 340 Sundancer
    8.1 Horizon
    I am new to this forum and just purchased a 2006 340. I have already gotten a lot of info just by reading the last couple of years posts(thanks to all contributors). I have looked at all of the options for replacing all electronics. Going with the Raymarine Axiom (one 9” and one 12” display), EV 140 autopilot, Quantum CHIRP Pulse Compression Radar, Sirius weather satellite receiver, topped off with a ICOM VHF with AIS Receiver. Should be completely installed next week. My only question is - will I need to have two backbones (Seatalk and NMEA 2000) to get full integration with All above and SmartCraft gauges to overlay on the displays?

    Michael
     
  14. KevinC

    KevinC Active Member

    493
    Feb 25, 2011
    Long Island, NY
    2004 340 Sundancer
    1988 Proline Center Console - 90hp Mariner/Mercury
    1969 Boston Whaler
    Twin 8.1 V-drives
    Check your mounting points; the 12" and 9" combo may be too large to fit in the current areas without building outside.

    -Kevin
     
  15. KevinC

    KevinC Active Member

    493
    Feb 25, 2011
    Long Island, NY
    2004 340 Sundancer
    1988 Proline Center Console - 90hp Mariner/Mercury
    1969 Boston Whaler
    Twin 8.1 V-drives
    From what I have learned SeaTalkng is Raymarine's implementation of N2K. Smartcraft is not N2K compatible (its Mercuisers proprietary implementation of CANBUS) and you will need a gateway to bridge from Smartcraft to N2K and to connect you will need a Raymarine connection from SeaTalk to N2K.

    -Kevin
     
  16. Michael Cooley

    Michael Cooley New Member

    8
    Oct 22, 2017
    2006 340 Sundancer
    8.1 Horizon
    Actually you are correct. The 12” display will have to mounted in the space above the steering wheel, but not recessed. I will use the mounting bracket (allows the display to tilt) as a surface mount.
     
  17. Michael Cooley

    Michael Cooley New Member

    8
    Oct 22, 2017
    2006 340 Sundancer
    8.1 Horizon
    When I spoke with Raymarine,my understanding was, the Axiom has both Seatalk and N2K inputs and is capable of running both at the same time seamlessly. I am not sure of this yet. I hope I don’t have to gateway or convert. As I understand the converter/gateway is not a reliable solution.
    But you bring up a good point about converting the Smartcraft language to N2K. Do you think it will require an N2K backbone to run the components that are not “Seatalk” compatible (VHF and AIS included)? Or is it even possible to overlay the data from those components?
     
  18. Michael Cooley

    Michael Cooley New Member

    8
    Oct 22, 2017
    2006 340 Sundancer
    8.1 Horizon
    Has anyone replaced the Air Conditioner. My unit (on 2006 340) does not seem like it will keep up with the South Florida heat during the summer. I was advised by the AC Technician it is working properly, but at its limit now (70 degrees w/ outside temp of 80) and beyond capacity in the summer. It is a 12,000 BTU (OEM) unit. It also will not keep the humidity below 70%. My wife and I plan on staying on the boat for a week or two every couple of months, and would like to keep it around 76 degrees in the middle of the day while docked or anchored.
    Has anyone upgraded to a 16,500 BTU, what were the results?
     
  19. Jeremygavin

    Jeremygavin Member

    660
    Mar 6, 2012
    Cape Cod, MA
    2005 Sea Ray 340 Sundancer, 2016 Sea Ray 19 SPX OB
    496 Mercruisers with Bravo IIIs, Mercury 150 Fourstroke
    I have not had any issues with the stock AC keeping the humidy and temp low (70 deg) in the middle of the summer when it is high humidity and temps are in the low 90s here in MA. I think there is something wrong with your unit.
     
  20. Jon Paul

    Jon Paul Member

    64
    Sep 24, 2013
    Phoenix
    2006 Sundancer 340
    8.1 V drives
    I have replaced mine with a 16,000 btu. We live in AZ and it is so much better! You will not be disappointed!
     

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