The big old 80's 340 owners thread

Discussion in 'Sport Cruisers' started by Keith the Cop, Oct 15, 2009.

  1. Happy Hour IV

    Happy Hour IV New Member

    294
    Nov 22, 2009
    California
    340 Dancer 1988
    454 Merc BW V drives
    anchor chain locker drain
     
  2. northshore

    northshore Well-Known Member GOLD Sponsor

    Jan 17, 2011
    Cleveland, OH
    1989 340 Sundancer
    Raymarine E90W Radar/Chartplotter
    Twin 454 Mercruiser 340's
    Thanks Happy!

    I just do not recall seeing that setup before - both mind and body gettin older!
     
  3. Pyrojodge

    Pyrojodge Well-Known Member TECHNICAL Contributor

    May 1, 2011
    Lake Erie Ohio
    1989 Sea Ray 340 DA
    twin 454 Mercs
    Yep Happy Hour nailed it...

    Mike do you know if the replaced the housing and the impellers or just the impellers? I would say that with knowing there's only 6hours on them get a spare set for backup and use them. Just my opinion but I wouldn't think they be to bad since Ron said they don't dry out with antifreeze. Good luck to you. And keep me posted on your dealings. We will have to have a celabration when its over...
     
  4. northshore

    northshore Well-Known Member GOLD Sponsor

    Jan 17, 2011
    Cleveland, OH
    1989 340 Sundancer
    Raymarine E90W Radar/Chartplotter
    Twin 454 Mercruiser 340's
    Greetings Jason,

    I'm still waiting to see if I can get a copy of the service order. That would give me a bit more insight
    as to what was specificaly done. I'll keep you in the loop with the goings on. I'm looking forward to that
    celebration!
     
  5. Keith the Cop

    Keith the Cop Member

    171
    Oct 13, 2009
    Long Island
    2000 400DB
    1989 340 Sundancer (Gone but not forgotten)
    3116 Cats
    Anyone using 4 blade props? If so, recommendations?
     
  6. giff1

    giff1 Member

    263
    Feb 9, 2009
    North East River, Upper Chesapeake Bay Maryland
    340 EC 1987
    Repowered 454's MarinePower
    I switched from 3 to 4 blade last year after banging up my 3 blades. I had a extra set of 4 blades that I had repitched to 17x17 with a medium cup. My 340 ec now cruises at 23 kts.+ at 3100 RPM with a WOT of 4400-4450 RPM.
    The props have a little more bite when docking. The boat seems to run smoother at cruising speed. My best fuel economy is 22 kts at 3050 RPMs before the 4 barrels kick in.
     
  7. Keith the Cop

    Keith the Cop Member

    171
    Oct 13, 2009
    Long Island
    2000 400DB
    1989 340 Sundancer (Gone but not forgotten)
    3116 Cats
    Next question. Has anyone changed the layout in the cokpit with the coffin seat in the rear? I saw an 87 on ebay that was updated with a newer type seat configuration. I saved the pic for future reference and when I went back to it, it was the size of a postage stamp.

    Would love to see pics if anyone has. Im thinking about a wrap around type upgrade for more seating. Although there goes the storage of the coffin
     
  8. Pyrojodge

    Pyrojodge Well-Known Member TECHNICAL Contributor

    May 1, 2011
    Lake Erie Ohio
    1989 Sea Ray 340 DA
    twin 454 Mercs
    Sounds interesting... I like the rear bench I'm not sure I would change it. I did how ever see some one changed the dinette in the cabin to a wrap around I liked that except for the jungle print.
     
  9. northshore

    northshore Well-Known Member GOLD Sponsor

    Jan 17, 2011
    Cleveland, OH
    1989 340 Sundancer
    Raymarine E90W Radar/Chartplotter
    Twin 454 Mercruiser 340's
    If you didn't mind your feet dangling a foot in the air, it would be nice to have a convenient way to turn the passenger helm seat around to face the rear bench.
     
  10. Pyrojodge

    Pyrojodge Well-Known Member TECHNICAL Contributor

    May 1, 2011
    Lake Erie Ohio
    1989 Sea Ray 340 DA
    twin 454 Mercs
    Now, Here would be my upgrade for the cockpit. I never use the wet bar. It is just wasted storage for me. Some day I want to install a horizontal fridge in the location. What do you guys think of that?
     
  11. Ka1oxd

    Ka1oxd New Member

    Nov 19, 2009
    Connecticut River at Portland Riverside Marina
    1988 Sea Ray 340 Sundancer
    7.4l inboards
    I like the fridge idea, I had even thought of making it a built in cooler. Now that I have the ice maker working, I think that may be next!
     
  12. giff1

    giff1 Member

    263
    Feb 9, 2009
    North East River, Upper Chesapeake Bay Maryland
    340 EC 1987
    Repowered 454's MarinePower
    The rear bench seat is called a (coffin seat)!!!

    Thanks guys, I'll never be able to sit on it the same way again.
     
  13. northshore

    northshore Well-Known Member GOLD Sponsor

    Jan 17, 2011
    Cleveland, OH
    1989 340 Sundancer
    Raymarine E90W Radar/Chartplotter
    Twin 454 Mercruiser 340's
  14. northshore

    northshore Well-Known Member GOLD Sponsor

    Jan 17, 2011
    Cleveland, OH
    1989 340 Sundancer
    Raymarine E90W Radar/Chartplotter
    Twin 454 Mercruiser 340's
  15. Keith the Cop

    Keith the Cop Member

    171
    Oct 13, 2009
    Long Island
    2000 400DB
    1989 340 Sundancer (Gone but not forgotten)
    3116 Cats
    intresting..
     
  16. Pyrojodge

    Pyrojodge Well-Known Member TECHNICAL Contributor

    May 1, 2011
    Lake Erie Ohio
    1989 Sea Ray 340 DA
    twin 454 Mercs
    Mike, that is an interesting idea. I was thinking something more stream lined. But that's a good concept.
     
  17. Carver370

    Carver370 Active Member

    Mar 30, 2007
    New Buffalo Michigan
    1994 Carver 370 Motoryacht
    Twin Crusader 454 - 350 HP Each.
    On a 1980 360 T-Top my family owned we removed the port side bench seat that faced aft and put in a wet bar with refrigerator, I will have to see if I have a picture somewhere. The person we sold the boat to asked how we got that option, little did he know we built it!
     
  18. JustJeff017

    JustJeff017 New Member

    103
    Jan 29, 2012
    Maryland, Chesapeake Bay and Potomac RIver
    1988 340 Express Cruiser
    2 454s.
    Not trying to hijack the thread but not sure where else to go. I need all of the advice I can get in replacing the impeller in the 454 for my 1988 340 EC. I have read terrifying stories about the port engine and am hoping you guys are the answer. Let me have it.......and thanks
     
  19. rondds

    rondds Well-Known Member SILVER Sponsor

    Oct 3, 2006
    Jersey Shore
    2001 380DA
    Merc 8.1s (2008)...Hurth ZF 63 V-drives...WB 7.0 BCGD (2013), Garmin 8208 & 740 MFDs, GMR 24xHD dome
    In a nutshell, remove the pump from the engine and take it out to change the impeller. It isn't that bad. You seriously have to lay on top of the engine (lay out a big moving blanket or something) and get your head way down in the hole. Take all the tools you'll need in with you b/c it aint easy getting back out. Take 400 mg of ibuprofen before you start and get the little ones off the boat - this job is rated "R" for strong language and violence.
     
  20. wileecoyote

    wileecoyote Member TECHNICAL Contributor

    949
    Oct 18, 2008
    Southern MD/ Potomac river
    1989 340 EC
    7.4LX2 Hurth 630A Drives
    6.5Kw QS Genny
    I have the fortune of having the bronze/brass Jabsco raw water pumps on mine (cheapest impeller kit was $103 ea.) but one thing I would add to Rons comment. Keep a cell phone near your hands or have someone nearby. Many (including myself) have got their head and torso wedged down in there and had to push/pull themselves out!
    Once you get the pump out it's not that hard at all.
    I'm not sure if any of our boats ever came with the "coolfuel" fuel pump/water pump option, but there is a write-up in the tech articles on servicing them here.
    Heres a post that shows some nice diagrams of the pump and bracket layout.
     

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