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Official 280 Sundancer Thread

Discussion in 'Sport Cruisers' started by gredmer, Jun 26, 2008.

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  1. todd3683

    todd3683 New Member

    19
    Aug 3, 2016
    Marblehead, OH
    280 Sundancer 2002, 5E Kohler Generator
    Twin 4.3L Mercruiser EFI w/ Alpha One Drives
    Thanks, I'll look into that.
     
  2. Darrenfon

    Darrenfon Member

    82
    Aug 28, 2018
    Richland NJ
    Acquired Oct 2019
    2005 280 DA
    Kohler 5kw
    Twin 4.3L MPI Alphas
    So, I finally figured out what is wrong with my vacuflush causing it to clog almost every weekend. The hose going from the toilet to the vacuum generator has delaminated on the inside therefore restricting flow to just a few millimeter space. I need to replace that hose, but have no idea how I’m going to do that. It looks like I will need to disassemble the starboard wall of the aft cabin to get to the line. Any ideas? I’m really concerned about this one.
     
  3. Darrenfon

    Darrenfon Member

    82
    Aug 28, 2018
    Richland NJ
    Acquired Oct 2019
    2005 280 DA
    Kohler 5kw
    Twin 4.3L MPI Alphas
    Well, problem solved. I just started tearing into the aft cabin and got the starboard side open. It’s actually only held on with four screws. Then I had access to the hose. It is seriously caulked at both the opening into the head and the wall between the cabin and the engine compartment. You have to cut all that away, also 4 wire straps behind the aft cabin wall and one between the side of the boat and the holding tank. Then with a lot of twisting, pulling and cursing you can pull it into the head compartment and out. I was lucky my marina had a 12 foot length of hose, only needed about 9 1/2 feet to do it. It’s now all back together and working like a champ. Hopefully no more clogs, as that was a major source of stress on the weekends.
     
  4. eweise

    eweise Member PLATINUM Sponsor

    469
    Aug 23, 2013
    Jacksonville, FL
    2005 Sea Ray 280 Sundancer
    Twin 4.3L 220 HP, Alpha 1 Drives, 5E Genny, AC
    Do you have photos?
     
  5. Darrenfon

    Darrenfon Member

    82
    Aug 28, 2018
    Richland NJ
    Acquired Oct 2019
    2005 280 DA
    Kohler 5kw
    Twin 4.3L MPI Alphas
    I do. I’ll be posting later when I get home. They never post right from my phone.
     
  6. eweise

    eweise Member PLATINUM Sponsor

    469
    Aug 23, 2013
    Jacksonville, FL
    2005 Sea Ray 280 Sundancer
    Twin 4.3L 220 HP, Alpha 1 Drives, 5E Genny, AC
    Awesome. Never know when I may need to do the same.
     
    Darrenfon likes this.
  7. Josh28161

    Josh28161 Member

    47
    Feb 8, 2020
    Deltaville
    2004 280 sundancer
    Twin 4.3
    Alpha one/gen2
    Hello fellow boaters, does anyone know the dimensions of the aft birth? I want to order a mattress topper and forgot to get the measurements last time I was down at the boat.
     
  8. Darrenfon

    Darrenfon Member

    82
    Aug 28, 2018
    Richland NJ
    Acquired Oct 2019
    2005 280 DA
    Kohler 5kw
    Twin 4.3L MPI Alphas
    48" x 80"
     
  9. Darrenfon

    Darrenfon Member

    82
    Aug 28, 2018
    Richland NJ
    Acquired Oct 2019
    2005 280 DA
    Kohler 5kw
    Twin 4.3L MPI Alphas
    Okay, here are photos of the sanitation line going from the head to the vacuum generator.

    Photo Aug 28, 1 14 16 PM.jpg
    This is the starboard side of the mid cabin. The black hose with the green strip running along the bottom is the culprit. you can see it is held down with some wire ties that are screwed in. The cabin paneling came down after removing just four screws, one from each corner. You can see the metal L Brackets it was mounted to.

    Photo Aug 28, 1 13 17 PM.jpg
    A close up inside the mid cabin. It is 1 1/2 inch sanitation hose.

    Photo Aug 28, 1 45 22 PM.jpg

    here is the hose once I had it completely out. Just short of 10 feet long.

    Photo Aug 28, 2 08 55 PM.jpg
    Here is the new hose going in, I started pushing it in from the head. The angle there makes it hard to push in, but with enough pulling and twisting, it gets there eventually.

    And here is the blockage in the original hose. You can see that the inside has delaminated, almost closing the hose off. Photo Aug 28, 3 23 22 PM.jpg
     
  10. Josh28161

    Josh28161 Member

    47
    Feb 8, 2020
    Deltaville
    2004 280 sundancer
    Twin 4.3
    Alpha one/gen2
    Thank you!
     
    Darrenfon likes this.
  11. eweise

    eweise Member PLATINUM Sponsor

    469
    Aug 23, 2013
    Jacksonville, FL
    2005 Sea Ray 280 Sundancer
    Twin 4.3L 220 HP, Alpha 1 Drives, 5E Genny, AC
    Thanks for posting. Good info to have.
     
    Darrenfon likes this.
  12. Kenneth Pursley

    Kenneth Pursley New Member

    4
    Jun 29, 2020
    SeaRay 280 Sundancer (2005)
    (2) Mercruiser
    I have a 2005 Searay 280. Looking for a direct replacement for the factory horn, if at all possible. I have seen some other options posted, just not sure I want to go those routes. Any suggestions?
     
  13. FunkyJunk

    FunkyJunk New Member

    7
    Jul 5, 2020
    '04 Sundancer 280
    Dual 4.3 Mercruiser, Alpha drives
    Does anyone have the spec for the bow spotlight bulb handy?
     
  14. Lazy Daze

    Lazy Daze Well-Known Member TECHNICAL Contributor GOLD Sponsor

    Apr 21, 2009
    PA
    Various
    Various
    You should be able to get a direct replacement (plug-n-play) from your dealer. You can get the same (or similar) horn other places, but you may just have to splice wires.
     
  15. D.B.

    D.B. New Member SILVER Sponsor

    27
    Jun 19, 2018
    280 Sundancer
    4.3 Mercruiser w/Alpha I
    Had a first happen to me this past Sunday. We had been in the Trump Boat Parade and got back into the slip and got everything cleaned up and battened down. We had to go home Sunday night because yours truly had to work Labor Day. I get a call that night about 10:30 from one of the lucky one that had Monday off and was still at the lake. He says Dave, I think you have a bilge pump working, but no water is coming out. He see's that my switch for the bilge pump is glowing amber. Up turns it Red but it will not shut off. The Perko's will not shut it off.
    So I load up and drive an hour and a half back down to the boat and sure enough, cannot turn it off any way but cut a wire to the pump. I did not know that the switch operated pump was a direct wire as is the float mounted pump. Switch has gone bad.
     
  16. B4tn

    B4tn New Member

    17
    May 3, 2018
    2001 280 Sundancer
    twin Mercruiser 4.3 EFI
    Haven’t had my boat out of the water yet since the survey. Are the twin 4.3’s setup to have oil drains on the transom? Or do I need to get an oil extractor?
     
  17. Lazy Daze

    Lazy Daze Well-Known Member TECHNICAL Contributor GOLD Sponsor

    Apr 21, 2009
    PA
    Various
    Various
    2001 was about the year that Merc started using that feature so you may/may not have it. However, the drains aren't "on" the transom. They are inside the boat and can be pulled out through the two garboard drain plugs (if the SS lead hasn't been broken). BUT... you can check this while you're in the water by looking under your engines. If you only have one garboard drain plug (which you can check while still in the water by taking a breath), you won't have this feature.
     
  18. B4tn

    B4tn New Member

    17
    May 3, 2018
    2001 280 Sundancer
    twin Mercruiser 4.3 EFI
    I have 2001 twin 4.3 EFI. Steering was getting pretty bad and I checked the PS fluid. It was empty so filled it up and it steered smoother than it ever had. After a few times out steering is stuff and clunky again. I checked the Starboard reservoir and it’s empty again and the bilge is full of PS fluid. The back of the pump looks wet around the connections. I followed the lines back best I could and the lines look dry towards the transom. Question is are the port and starboard pumps connected? Is Teflon tape ok to use on the threaded connector? I am thinking to try and remove the threaded connector and put it back on with some Teflon or sealant and snip some of the rubber hose connection off and put a new hose clamp.
     
  19. FLL280Sun

    FLL280Sun New Member

    15
    Jul 18, 2019
    280 Sundancer
    Twin Mercruiser 4.3
    Battery switch settings question. The battery switch uses batteries 1 and 2 to start the port engine and the house lights. Battery 3 starts the starboard engine and generator. When I start and am under way I have the battery switch on 1 for port engine. My question is if battery 2 is being changed with the battery switch set to battery 1?
     
  20. B4tn

    B4tn New Member

    17
    May 3, 2018
    2001 280 Sundancer
    twin Mercruiser 4.3 EFI
    I wiped off the pump and fittings, changed the cap, and filled the reservoir again. Went for a ride and there is a quart of PS fluid in the bilge. The pump and fittings are dry so my next best guess is the PS cooler. Can anyone verify the location of the cooler for a 2001 4.3 EFI? I am getting conflicting results in searching. Some say its behind the distributor near the transom others say on the port side of the engine under the exhaust (which is dry from what I can see) I still have the question if the port and starboard sides are plumbed together or not.
     

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