340 SUNDANCER THREAD

Discussion in 'Sport Cruisers' started by jim696, Feb 1, 2007.

  1. CliffA

    CliffA Well-Known Member GOLD Sponsor

    Dec 29, 2009
    Lake Norman, NC
    2001 Sea Ray 340DA
    Name: 'Happy Place'
    4.5kW West. Generator
    Purchased Nov. 2014
    Fresh Water Use
    Twin Merc. 6.2L (MPI)
    640 hp (Total)
    Raw Water Cooled
    V-Drive Transmissions
    just a friendly suggestion....you may want to hold on to the stock props until you see how the 4 blade props work on your boat....i have read mixed reviews of 4 blade props on our boats....also remember that the 1998-2003.5 model 340 will perform differently than later models with the same props due to the overall weight difference and the dead rise difference in the two models....

    good luck with the project....

    cliff
     
    Last edited: Mar 15, 2019
  2. Mittens

    Mittens Active Member

    598
    Mar 5, 2017
    Huntsville, AL
    2002 340 Sundancer, All Cherry Cabin, Black Canvas.
    8.1 Mercs, V Drives, 4.5kw Westerbeke.
    yea I am aware the changes, but the boats that came with the new 4 blades is heavier, and same motors, and others have made the swap and picked up 2-3mph cruise speed... which is what I want.. and I am asking for interest, not shipping them off till I run the boat with the 4 blades to be sure.
     
  3. TNT8808

    TNT8808 Active Member PLATINUM Sponsor

    463
    May 25, 2016
    West Michigan
    2008 48 Sundancer
    Cummins QSC 8.3's
    Avon Seasport 340
    40 HP Yamaha
    I had ACME 4 blade props on mine, and I can't find the paperwork with diameter & pitch but can tell you once I put those on I had a lot more grip around the dock, the launch was great, and just like you're looking for I picked up a few MPH at cruise cruise speed, and if I remember correctly lost a few at WOT.

    -Tom
     
  4. Mittens

    Mittens Active Member

    598
    Mar 5, 2017
    Huntsville, AL
    2002 340 Sundancer, All Cherry Cabin, Black Canvas.
    8.1 Mercs, V Drives, 4.5kw Westerbeke.
    Any way to find out what you had?
     
  5. TNT8808

    TNT8808 Active Member PLATINUM Sponsor

    463
    May 25, 2016
    West Michigan
    2008 48 Sundancer
    Cummins QSC 8.3's
    Avon Seasport 340
    40 HP Yamaha
    I'm sorry, but I looked before replying and just don't have those records. I'd suggest calling ACME Marine at 888.661.ACME they know these 340's extremely well as Sea Ray built a ton of them. I forget which number you hit for technical support, but they have 2 guys available to help.
     
  6. TotallyGross

    TotallyGross Member

    69
    Mar 19, 2016
    Glen Burnie, MD
    2002 400 Sea Ray Sedan Bridge
    Pho King Gross
    Sweet Cummins 6CTA 8.3
    I have a 2000 340 Dancer and just had my 4 blade props turned in the fall.
    I increased the pitch. I helped my cruise speed AND my top end RPM actually improved.
    I have the 7.4L MPI mercs. I'll share what i did when i get my paperwork looked at.
     
  7. CliffA

    CliffA Well-Known Member GOLD Sponsor

    Dec 29, 2009
    Lake Norman, NC
    2001 Sea Ray 340DA
    Name: 'Happy Place'
    4.5kW West. Generator
    Purchased Nov. 2014
    Fresh Water Use
    Twin Merc. 6.2L (MPI)
    640 hp (Total)
    Raw Water Cooled
    V-Drive Transmissions
    can the engines still reach the recommended RPM range at WOT?

    cliff
     
  8. TotallyGross

    TotallyGross Member

    69
    Mar 19, 2016
    Glen Burnie, MD
    2002 400 Sea Ray Sedan Bridge
    Pho King Gross
    Sweet Cummins 6CTA 8.3
    Yes. I was very concerned. I was told if I increased pitch I would not be able to get the RPM's high enough. Against everyone's advice I wanted to see how my heavy A$$ boat would plane and ride if I did it. It was a great move that I should have done sooner. It planes more level than before and has a tad more speed and the RPM's still hit 4500-4600 I believe. I have to go back and look at my stuff.
     
  9. CliffA

    CliffA Well-Known Member GOLD Sponsor

    Dec 29, 2009
    Lake Norman, NC
    2001 Sea Ray 340DA
    Name: 'Happy Place'
    4.5kW West. Generator
    Purchased Nov. 2014
    Fresh Water Use
    Twin Merc. 6.2L (MPI)
    640 hp (Total)
    Raw Water Cooled
    V-Drive Transmissions
    sounds good....you do not want to 'lug' the engines....only bad things happen if/when you do....

    and your 'heavy a$$ boat' is around 1,000 lbs less than the newer model 340 and has less hull deadrise, both of which help with planing a little easier....

    cliff
     
  10. TotallyGross

    TotallyGross Member

    69
    Mar 19, 2016
    Glen Burnie, MD
    2002 400 Sea Ray Sedan Bridge
    Pho King Gross
    Sweet Cummins 6CTA 8.3
    I had a hard time keeping the bow down with tabs til I did this also.
    I had a stainless steel tab made that gave larger surface area. I also have engine monitors and can watch the efficiency increase as I mess with the tabs. A real cool investment.
     

    Attached Files:

  11. CliffA

    CliffA Well-Known Member GOLD Sponsor

    Dec 29, 2009
    Lake Norman, NC
    2001 Sea Ray 340DA
    Name: 'Happy Place'
    4.5kW West. Generator
    Purchased Nov. 2014
    Fresh Water Use
    Twin Merc. 6.2L (MPI)
    640 hp (Total)
    Raw Water Cooled
    V-Drive Transmissions

    looks good...do you happen to have the design for the new tabs?....i have been playing with this idea as well but we seldom go on plane for more than a few mins and that is just when i want to check out the health of the engines with a quick WOT run.....the way we use our boat i am not sure the time and money to make and install new tabs is a cost effective project.....99% of the time we are running around 8-9 mph on 'cocktail cruises'.....

    cliff
     
  12. Mittens

    Mittens Active Member

    598
    Mar 5, 2017
    Huntsville, AL
    2002 340 Sundancer, All Cherry Cabin, Black Canvas.
    8.1 Mercs, V Drives, 4.5kw Westerbeke.
    I am about to pull the boat for bottom paint. Planning 23x14 tabs with 2 inch down fins.... then possibly the 4 blade 21-22s to help the speed. betwee both shouls get a solid 3-4mph cruse speed and flatter ride...

    I have my Lowrance hooked to the SMmartcraft 8.1s and played a lot to see MPG live... and .7 is normal .8 if light on gas... I run on plane most days... so would love to see the front down and some better mpg
     
    Last edited: Mar 20, 2019
  13. Don Barrett

    Don Barrett New Member

    4
    Feb 17, 2019
    LI. New York
    2003.5/340DA
    8.1 Horizon
    I don’t see how to send message. Am interested in the mattress
     
  14. Mittens

    Mittens Active Member

    598
    Mar 5, 2017
    Huntsville, AL
    2002 340 Sundancer, All Cherry Cabin, Black Canvas.
    8.1 Mercs, V Drives, 4.5kw Westerbeke.
    Any of you that have replaced your main fridge?

    New one is here, about to do the swap, the new one has a drain hose for it and trying to plan where to runnthat or block off.
     
  15. CliffA

    CliffA Well-Known Member GOLD Sponsor

    Dec 29, 2009
    Lake Norman, NC
    2001 Sea Ray 340DA
    Name: 'Happy Place'
    4.5kW West. Generator
    Purchased Nov. 2014
    Fresh Water Use
    Twin Merc. 6.2L (MPI)
    640 hp (Total)
    Raw Water Cooled
    V-Drive Transmissions
    i think i need to replace the water pressure regulator for the shore water hook up on my boat....my fresh water pump failed so i hooked up to shore water this past WE until i installed a new pump....at first water flowed from the faucets and toilet as expected but latter just a small trickle of water would flow...the hose still had plenty of pressure so it seems like the regulator must be bad....

    does anyone have a link for a replacement regulator for our boats?.....

    thanks...
    cliff
     
  16. Mittens

    Mittens Active Member

    598
    Mar 5, 2017
    Huntsville, AL
    2002 340 Sundancer, All Cherry Cabin, Black Canvas.
    8.1 Mercs, V Drives, 4.5kw Westerbeke.
    Mine is bad as well. Will replace if someone has link and not to pricy but never really use it.
     
  17. CliffA

    CliffA Well-Known Member GOLD Sponsor

    Dec 29, 2009
    Lake Norman, NC
    2001 Sea Ray 340DA
    Name: 'Happy Place'
    4.5kW West. Generator
    Purchased Nov. 2014
    Fresh Water Use
    Twin Merc. 6.2L (MPI)
    640 hp (Total)
    Raw Water Cooled
    V-Drive Transmissions

    yeah, i don't use mine much either but i like for everything on my boat to work as intended....it will come in handy if it is needed again in the future....i replaced the fresh water pump....not too bad of a job....

    cliff
     
    Chris-380 likes this.
  18. CliffA

    CliffA Well-Known Member GOLD Sponsor

    Dec 29, 2009
    Lake Norman, NC
    2001 Sea Ray 340DA
    Name: 'Happy Place'
    4.5kW West. Generator
    Purchased Nov. 2014
    Fresh Water Use
    Twin Merc. 6.2L (MPI)
    640 hp (Total)
    Raw Water Cooled
    V-Drive Transmissions
    i did a little research on the water pressure regulator...the original Jabsco part number is 44410-1000.....this part is no longer available....the Jabsco replacement is part 44412-1045.....there are reviews that suggest the new part is a little larger in diameter than the original so the mounting hole may need to be enlarged...but the hook-up to the water lines on the boat had no issues....i ordered one so i'll report back once i have a chance to install it....

    cost is around $40.....

    cliff

    https://www.amazon.com/Jabsco-Water...1045&qid=1553525121&s=gateway&sr=8-1-fkmrnull

    upload_2019-3-25_10-50-6.png
     
  19. KevinC

    KevinC Well-Known Member

    Feb 25, 2011
    Long Island, NY
    2004 340 Sundancer
    Twin 8.1 V-drives
    Skip the Jabasco (Xylem) and go for the Shurflo. They are a much better unit. The Jabasco connector was just pressure fitted in and failed within 6-months. The Shurflo is a slightly larger hole but basically the same size. If I can find my pictures of the Jabasco failure I will post them.

    -Kevin
     
  20. Mittens

    Mittens Active Member

    598
    Mar 5, 2017
    Huntsville, AL
    2002 340 Sundancer, All Cherry Cabin, Black Canvas.
    8.1 Mercs, V Drives, 4.5kw Westerbeke.
    Finally addressed a factory annoyance..

    You can’t turn on the light in the head with out turning on all the other lights around the cabin..... so if one needs to use the bathroom at night lights come on everywhere or your in the dark...

    So randomly found the access panel behind the mirror in the head...this gave me an idea.. and I capitalized.

    Ran a single wire from the head light, over top of head and down the wall behind the power panel, and into the switch panel on left side of counter.

    The head light is now powered off the fan switch power supply side. Both fan switches work as normal. And the head light works alone by switch inside head..

    So the breaker for the fan... poop/gally if off the head light is not powered/ can’t be left on. But in general when I first get to the boat I turn on the fan switch and some others.. but no more bathroom light = wake everyone
     

Share This Page

Show Sidebar