280SS/290SS Thread

Discussion in 'Sport Boats' started by comsnark, May 19, 2009.

  1. jmanteu1

    jmanteu1 New Member

    17
    Jul 6, 2014
    Lake St. Clair, MI
    280 Sunsport 2001
    Twin 350 Mercruiser
    Thanks for the help guys...

    One part of my problem is solved. I checked the water pump and it was making a constant running noise, but no water was being vacuumed from the tank. I took it out and into a marine supply shop and we tested it, poured water in the intake and it just pooled. So I bought a new one and put it in and it runs great. Water system now working!

    With regards to my vacuflush, when I press the toilet foot pedal, water now enters the bowl, but no motor sound and no vacuum sound. I did have this thing fully surveyed, but I'm thinking the surveyor never checked to see if the vacuum and motor for vacuflush worked. It appears to be working as water enters the bowl. I don't think the previous owner ever used the toilet (I'm going to call him and ask). I know he probably didn't use the water system... it still had winterizing liquid in it. The water pump was 14 years old (same age as boat) looked in excellent condition (probably not used much). The vacuflush system components appear in great shape, I'm thinking it was rarely used if ever.

    So where do I start with troubleshooting the vacuflush? Take off the motor and take it in to see if it works? The users manual says to "short the B wires" as one of the troubleshooting steps, can I do that with a regular 12 or 14 gauge speaker wire? I am a little concerned with getting into the wiring for the vacuflush. It seems to be hard wired in, no switch anywhere for it. Where as the water pump had the switch on the dash so I could ensure the power was cut, before getting into the wires.

    Thanks for the help.
     
  2. magstang1

    magstang1 Active Member

    May 30, 2010
    Lake St.Clair
    1998 31 Sedan Bridge
    Twin 350 Marine Power
    If I remember right my 280ss had a key switch on the wall in the head to turn on the vacuflush pump.
     
  3. jmanteu1

    jmanteu1 New Member

    17
    Jul 6, 2014
    Lake St. Clair, MI
    280 Sunsport 2001
    Twin 350 Mercruiser
    There is a keyed switch on the wall, I thought it was for the macerater, but I'll give it a try, thanks.
     
  4. 2000SEARAY280SS

    2000SEARAY280SS Member

    919
    May 7, 2007
    Potomac River
    ArrowCat 30ES
    Twin Verados 250
    yep the key needs to be moved to the first detent and that will start the vacuum pump. if the pump continues to run that's ok but turn it off when done. the pump running and not stopping means you have a leak or most likely duck bill failure.
     
    Last edited: Jul 12, 2014
  5. jmanteu1

    jmanteu1 New Member

    17
    Jul 6, 2014
    Lake St. Clair, MI
    280 Sunsport 2001
    Twin 350 Mercruiser
    It was the key, thanks guys. Everything working now.

    Much appreciated.
     
  6. magstang1

    magstang1 Active Member

    May 30, 2010
    Lake St.Clair
    1998 31 Sedan Bridge
    Twin 350 Marine Power
    Good deal. I love free fixes.
     
  7. boltman

    boltman Active Member

    Dec 28, 2005
    Flint/Swartz Creek MI, Ported in Whitehall/Montagu
    480 Sedan Bridge
    "Sea Ray's Best Boat Ever Made"
    700 hp MANS Diesels Thundering Cathedrals of Torque!!
    I would have thought the SS meant super sport which means FAST , 46 and 49 is slow my 24 Sorrento did 49 with a single 5.7 liter 350 holy cow!!!! Said from a 480 DB owner .


    Boltman
     
  8. jmanteu1

    jmanteu1 New Member

    17
    Jul 6, 2014
    Lake St. Clair, MI
    280 Sunsport 2001
    Twin 350 Mercruiser
    SS = Sunsport. How much faster than 50 do you really need to go on the water?
     
  9. RollerCoastr

    RollerCoastr Well-Known Member

    Nov 15, 2007
    Cedar Point, OH / Miami, FL / MacRay Harbor, MI
    1997 400DA
    340HP 7.4 Mercruiser Bluewaters
    Garmin 741, 742, 8212, 24HD, Intellian I2
    1999 280BR
    Twin 250HP Merc 350 Alpha Ones
    49 from a single small block is impressive! What's nice about the 280SS/BR though is how easily they plane-out and how many people they can carry while they do it. I've had 12 people aboard with half fuel and full water and the boat doesn't even seem to notice.

    Since you wandered into 280 territory to question the performance of our boats, we're gonna have to call you out on your mis-spelling of your engines: it's MAN, not MANS! :grin:
     
  10. boltman

    boltman Active Member

    Dec 28, 2005
    Flint/Swartz Creek MI, Ported in Whitehall/Montagu
    480 Sedan Bridge
    "Sea Ray's Best Boat Ever Made"
    700 hp MANS Diesels Thundering Cathedrals of Torque!!
    Owwww gheez I call it MANS because I have 2 like you , you have 350 Chevys , well they aren't Chevys at all are they they are general motor engines . :) all in good fun my friend I almost bought a 280ss but I wanted 454s in it


    Boltman
     
  11. RollerCoastr

    RollerCoastr Well-Known Member

    Nov 15, 2007
    Cedar Point, OH / Miami, FL / MacRay Harbor, MI
    1997 400DA
    340HP 7.4 Mercruiser Bluewaters
    Garmin 741, 742, 8212, 24HD, Intellian I2
    1999 280BR
    Twin 250HP Merc 350 Alpha Ones
    Ah - well then you're just using redundant-plurality. (a term I just made up btw) It could be MANs (diesels) or MAN Diesels...

    I've spent a lot of time in the 280 engine compartment lately. I wouldn't mind ONE 454, but I'd hate to see two stuffed in there! As I type this, the inboard port exhaust and elbow are dismantled so a new shift cable could be fished through. I have a bad bilge pump too. I'm thinking it would be easier to remove both engines or cut a hole in the bottom of the hull than it would be to get to that pump.

    Aside from ER access, ideally I'd like the 300 HP FI's mated to B3's. I have no performance complaints at all. In the mid-40's, my reaction is "damn this thing is fast". I honestly haven't wanted to go faster. This 280 is a Saltie though, so the carb just offers more vulnerability and parts to worry about. I've never had any love of Alpha's, particularly since they've kept me high and dry all summer with shift issues.
     
  12. magstang1

    magstang1 Active Member

    May 30, 2010
    Lake St.Clair
    1998 31 Sedan Bridge
    Twin 350 Marine Power
    My 280ss was a 1997 with twin 5.7 carb'd motors and Alpha drives. I never had a problem planing even with all the tanks full, and two families with coolers brimming. I could cavitate the props if I pushed her hard enough coming on to plane. A steady forward roll on the throttles brought her up and over with ease. Bravo 3's would have doubled the prop bite, and there was plenty of power there to utilize it. I really don't think that boat needed big blocks even if you could get them in there.

    Thank god my bilge pump never failed.
     
  13. nauti medic

    nauti medic New Member

    43
    Sep 6, 2009
    Chain o' Lakes IL
    280 ss
    T 350 mags w/Bravo I's
    Haven't been around lately but installed an extended swim platform from Swimplatforms.com for our 280 spring of '13 project and thought I'd share it with fellow CSR members who may be looking for ideas.
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    Last edited: Sep 22, 2014
  14. nauti medic

    nauti medic New Member

    43
    Sep 6, 2009
    Chain o' Lakes IL
    280 ss
    T 350 mags w/Bravo I's
    This years upgrade was new canvas. Originally we only had the front bimini and the slant back sport camper canvas. We also changed from the brown tweed color to black. Canvas shop built the frame work for the rear bimini and installed it as well. Rear curtain and both side rear curtains have screens installed. I opted for no screens across the front or either side front pieces as I wanted the visibility for night driving with the enclosure up.
    [​IMG]
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    Last edited: Sep 22, 2014
  15. 2000SEARAY280SS

    2000SEARAY280SS Member

    919
    May 7, 2007
    Potomac River
    ArrowCat 30ES
    Twin Verados 250
    nice job on the swim platform my wife loves ours.

    canvas is always good looking in black you made the right choice.

    who makes the ladder you installed it looks better than mine.
     
  16. chuck1

    chuck1 Super Moderator TECHNICAL Contributor PLATINUM Sponsor

    Oct 3, 2006
    North GA Mountains
    Looking For Next One
    Looking For Next One
    Looks great.....
     
  17. nauti medic

    nauti medic New Member

    43
    Sep 6, 2009
    Chain o' Lakes IL
    280 ss
    T 350 mags w/Bravo I's
    It is made by WindLine I believe..... it was the ladder that was installed from Swimplatforms.com
     
  18. RollerCoastr

    RollerCoastr Well-Known Member

    Nov 15, 2007
    Cedar Point, OH / Miami, FL / MacRay Harbor, MI
    1997 400DA
    340HP 7.4 Mercruiser Bluewaters
    Garmin 741, 742, 8212, 24HD, Intellian I2
    1999 280BR
    Twin 250HP Merc 350 Alpha Ones
    I'm looking at storage options. Has anyone measured how tall the windshield is when the boat is on a trailer? My tri-axle seems to sit lower than some of the duals, so I wondered if I kept the tongue low if I could get her under a 9' door.
     
  19. nauti medic

    nauti medic New Member

    43
    Sep 6, 2009
    Chain o' Lakes IL
    280 ss
    T 350 mags w/Bravo I's
    Sorry don't have a her on a trailer
     
  20. 2000SEARAY280SS

    2000SEARAY280SS Member

    919
    May 7, 2007
    Potomac River
    ArrowCat 30ES
    Twin Verados 250
    Mine would not. its more like 11 or 12 feet up there.
     

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