340 SUNDANCER THREAD

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

  1. suss1173

    suss1173 Member

    319
    Jul 11, 2013
    Sea Cliff, NY
    01- 340 with 7.4 Horizon's.
    Past- Pachanga 27- twin 350's, 94-300 DA with twin 350's Alpha gen 2
    Twin 350 Mag's
    I’m looking to replace my hot water heater. I haven’t decided on a replacement unit yet, but what ever I get, it will be another 6 gallon unit, and very similar in demotions to the original unit. Possibly I’ll get the Kumo 6 gallon unit, as it worked well in my last boat. Im also open to suggestions too.

    Can anyone with 7.4 MPI’s tell me if it will come out w/o removing the exhaust elbow, or worse the entire manifold.

    TIA
    Michael
     

    Attached Files:

  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.
    Hmm mine is under the pump for the vacuflush.
     
  3. 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 his is also...i think the pic is posted upside down....

    cliff
     
  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.
    that makes way more since! hahaha
     
  5. KevinC

    KevinC Well-Known Member

    Feb 25, 2011
    Long Island, NY
    2004 340 Sundancer
    Twin 8.1 V-drives
    What's wrong and why replace? If its not getting hot just replace the element. Unless the tank is leaking all else should be repairable.

    -Kevin
     
  6. suss1173

    suss1173 Member

    319
    Jul 11, 2013
    Sea Cliff, NY
    01- 340 with 7.4 Horizon's.
    Past- Pachanga 27- twin 350's, 94-300 DA with twin 350's Alpha gen 2
    Twin 350 Mag's
    Yes, the picture posted was upside down. Not sure why it uploaded that way, but my HWH is under the holding tank pump.

    Kevin, thanks for reaching out earlier today. I didn’t make it to HD, but will try tomorrow and see if they have that valve in stock.
     
    Last edited: May 24, 2019
  7. 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.
    Ok after long weekend with new tabs.

    Before when heavy with fuel and water.
    .64mpg and when lighter .7mpg 24-26mph

    Now loaded with fuel and water and stuff for 3 and 2 nights. .92mpg and 1.01 a@ 28-30mph depending on direction. So a solid .3mpg. On average and 3-4 mph..

    I will say the bottom paint is new with the tabs so some can be accounted for that. But wow at the difference the way the boat ride on top water, bump a tab and the boat responds.
     
    Jeff42899 and suss1173 like this.
  8. 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
    nice upgrade and thanks for the follow-up....

    cliff
     
  9. suss1173

    suss1173 Member

    319
    Jul 11, 2013
    Sea Cliff, NY
    01- 340 with 7.4 Horizon's.
    Past- Pachanga 27- twin 350's, 94-300 DA with twin 350's Alpha gen 2
    Twin 350 Mag's

    This seems like a great upgrade. Now I have something to add to my wish list .


    I assume you bottom wasn’t in bad shape? I am asking b/c I know that can make a difference. I gained 3 mph after doing mine. However, the bottom of my boat was nasty. It looked like the P.O. had the marina paint it with an old mop. After media blasting, 4 coats of barrier and some nice paint this spring it’s nice and smooth. I can’t speak to my fuel efficiency gain (or loss) b/c I haven’t used it enough yet this season. But I have a 3mph gain at 3,200, 3,400 and same at 3,600 rpm.
     
  10. 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.
    My bottom was not in bad shape, but it did get a new bottom job while out. No blisters, just was fuzzy.

    I am sure 0.2 of the gian was from just that. as the mpg and speed with zero tabs increased by that much. but the larger tabs allow it ro pick up that extra 0.1 and another mph or 2 by not running them all down all the time.
     
    suss1173 likes this.
  11. John Mills

    John Mills New Member

    15
    Jul 29, 2019
    Lake Lewisville
    340 Sundancer 2000
    Mercruiser
    I have been hanging out for a few days. Taking a sea trial on a new to us 2000 Sea Ray 340. The survey is Tuesday. Looking forward to spending time on it with the family.
     
    Chris-380 likes this.
  12. TotallyGross

    TotallyGross Member

    71
    Mar 19, 2016
    Glen Burnie, MD
    2002 400 Sea Ray Sedan Bridge
    Pho King Gross
    Sweet Cummins 6CTA 8.3
    I’m selling my 2000 340 right now. It’s a marvelous boat honestly John. Hope you enjoy it for a while.
     
  13. John Mills

    John Mills New Member

    15
    Jul 29, 2019
    Lake Lewisville
    340 Sundancer 2000
    Mercruiser
    The boat ran great. Topped out at about 4200 rpm. Bottom hasn’t been cleaned in a while. Will see how it does after the bottom survey. Is there a secret to opening hanging storage?
     
  14. suss1173

    suss1173 Member

    319
    Jul 11, 2013
    Sea Cliff, NY
    01- 340 with 7.4 Horizon's.
    Past- Pachanga 27- twin 350's, 94-300 DA with twin 350's Alpha gen 2
    Twin 350 Mag's
    When you run your had along the edge of the door frame, you will feel a groove, or indentation, and that will indicate the way the door swings.

    On my 01, both of the forward lockers swing forward- towards the bow. The rear locker swings forward too.
     
    TotallyGross likes this.
  15. John Mills

    John Mills New Member

    15
    Jul 29, 2019
    Lake Lewisville
    340 Sundancer 2000
    Mercruiser
    Thanks. I will check it on Tuesday.
     
  16. John Mills

    John Mills New Member

    15
    Jul 29, 2019
    Lake Lewisville
    340 Sundancer 2000
    Mercruiser
    Replacing the lowrance hds5m with a new unit. Would you use garmin, lowrance or raymarine? Would use install a in hull, thru hull, or transom mounted transponder.
     
  17. TotallyGross

    TotallyGross Member

    71
    Mar 19, 2016
    Glen Burnie, MD
    2002 400 Sea Ray Sedan Bridge
    Pho King Gross
    Sweet Cummins 6CTA 8.3
    Happy to hear.
    Check your engine label. I think my 7.4L mercs are rated at 4400-4600
     
  18. TotallyGross

    TotallyGross Member

    71
    Mar 19, 2016
    Glen Burnie, MD
    2002 400 Sea Ray Sedan Bridge
    Pho King Gross
    Sweet Cummins 6CTA 8.3

    I used a digital DST transducer and replaced the old analog DST transducer.

    I had to make the hold a little bigger but it was awesome.
    Here was my electronics upgrade.

     
  19. John Leyden

    John Leyden Member GOLD Sponsor

    94
    Jul 7, 2017
    New Port Harbor California on my Mooring
    Sea Ray 00' 340DA (Anna Mei II)
    Was 310 HP MPI --> Twin full 454 Mer-Cruiser 400 hp "Gas Aspirated" Less to worry! Works for me!
    EMail me at Leydenjon Yaho And Ill send Photos!
     
  20. Jeremy Melton

    Jeremy Melton New Member

    3
    Jul 2, 2019
    1999 Sea Ray 340 Sundancer
    Twin Mercruiser MIE 5.7 L BWI
    We have owned our 340 for about 6 weeks now and have our dock all set up and are making ourselves at home. I would like to hook up to the city water on our dock to save the water in our holding tank. Is there a valve that I need to turn on to switch from the holding tank to the dock hose? We use a charcoal/carbon filter at the dock stand.
     

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