40 sedan bridge forum

Discussion in 'Sport Yachts/Yachts' started by Caseclosed, Aug 8, 2012.

  1. my3sons

    my3sons Active Member SILVER Sponsor

    Feb 24, 2009
    Upstate NY (lake Erie)
    2004 400DB, Onan 9 kw Gen, Highfield RIB,
    Cummins 6CTA
    Hello Arickosmo,
    I'll add:
    1) no major differences. Both Cat and Cummins are good power plants. The Cats offered in the 400 DB will give slightly better fuel economy, Cummins will give a little more speed
    2) There is no advantage to a diesel on a small lake. The advantage comes when you move off the lake or sell to someone who will take it elsewhere. A disadvantage may be that diesel is not available at a marina on a small lake, or if you want to sell to someone on the lake, they may not want to pay the diesel premium.
    3) correct
    4) No, but the maintenance parts, are a little more money, an oil change is 4+ gallons per vs 9 quarts for example. No big deal.
    5) No, not yet
     
    Last edited: Dec 10, 2016
  2. cwiert

    cwiert Member SILVER Sponsor

    384
    May 7, 2008
    Westbrook, CT
    1998 400 Sedan Bridge
    CAT 3116 - 350HP
    I agree with everyone else on the diesel/gas opinions.

    Regarding the holding tank, yes, after 1999 they became 40 gal, which is nice and what it should have always been. I have a 98, and only a 26 gal holding tank. That said, I've never had any issues with it. My marina does weekly scheduled pump outs and even when I spend the week on the hook, I make sure I'm pumped out before I leave, usually pump out once while I'm out, and then when I get home. Not really an issue. But the additional 14 gal would be a nice added sense of security.

    Regarding #5, I've learned that every boat has a price. I have yet to find one that's not for sale. :) Good luck with your search.
     
  3. fwebster

    fwebster Well-Known Member TECHNICAL Contributor PLATINUM Sponsor

    Oct 6, 2006
    Middle Tennessee ; Panama City Beach, FL
    1996 450DA
    3116 Caterpillars
    I have experience with the 7.4's vs diesel part of this discussion.........After 10 years with a pair of 7.4's, I traded up to a 450DA with Cat diesels. I am spending a fraction of what I spent on the 7.4's maintaining the Cat diesels......like 1/3 of the cost. The larger oil capacity is a factor, but not nearly what the cost of changing risers/manifolds on Mercruisers. I do most of my own maintenance and I find that the Cat diesels are technically and physically far easier to maintain that 7.4's.

    The other thing you should consider is the resale value of a 400DB with gas vs. diesel power. Long term, because there is very limited demand for gas 400DB's, the diesel boat will hold its value better and be much easier to sell or trade in the future, if and when you decide to move up, down or out.
     
  4. nosnow

    nosnow New Member

    5
    Aug 21, 2009
    everywhere
    sea ray
    Cat 3116-300
    i have a 99 400DB, My Stbd rudder is shipping a bit of water - bilge pump comes on every two hours or so. I need to tighten the jam nut on the stuffing box but it is very difficult to get at so I will have to manufacture a couple of wrenches to get at it. Can you tell me the size of the two large hex nuts on the stuffing box.

    Can you message me so I don't have to figure out how to get back here please.

    Ron
     
  5. mjmason1

    mjmason1 New Member

    533
    Oct 19, 2013
    Fall River, MA
    1996 400 Sedan Bridge
    3116ta Cats
    My starboard rudder was weeping. Not enough to set the bilge pump on regularly. With a good size pair of channel locks and a hammer we loosened the bottom nut which is the lock nut. You do this by turning the nut clockwise. Then tightened the top nut which is the packing nut. Once that one is tight you tighten the locking nut back up. It seemed to stop the leak. There isn't a lot of room for a bigger wrench.
     
  6. Ray O

    Ray O Member SILVER Sponsor

    39
    Aug 20, 2015
    Augusta GA/ Hilton Head Island
    2001 400DB Sea Candy
    Cummins
    Thru hull replacement

    Need to replace a crack thru hull would like to replace with a SS one. looks like it is 2" on the outside but also looks like it tapers down to the hose. Has anybody replaced this and can confirm size and where I may purchase?


    image.jpg
     
  7. Islandbound

    Islandbound New Member

    19
    Dec 7, 2015
    Tampa Bay
    1998 400 Sedan Bridge
    Cat 3116


    Jim,

    Any luck on finding these? One of mine just broke today...

    Regards,
    Stephen

    Sent from my iPhone using Tapatalk
     
  8. Islandbound

    Islandbound New Member

    19
    Dec 7, 2015
    Tampa Bay
    1998 400 Sedan Bridge
    Cat 3116
    Last edited: Jan 8, 2017
  9. ynot

    ynot Member

    70
    Feb 14, 2010
    s ca
    400 sedan bridge
    454 mer
    hello
    I have a sedan bridge ,I am trying to find a replacement vacuum bag ,having hard time locating one ,any help is welcome
    have a great bating
     
  10. Nepenthe

    Nepenthe Member

    72
    Aug 29, 2011
    Fontana on Geneva Lake, Wisconsin
    400 Sedan Bridge
    7.4L Mercruiser
    You can buy them online - eBay or other retailers. They are sold in 3-packs for about $20.00. Search Beam Part #110041.
     
  11. Prosideus

    Prosideus Member PLATINUM Sponsor

    509
    Jun 5, 2012
    Franklin, TN - Old Hickory Lake
    400 Sedan Bridge '96
    Cat 3116
    I just picked a bag that had the same size opening for the short pipe you install the bag on. A bigger bag is not going to matter because it will be confined to the size of the canister anyway. Should be an easy solution for you.


    Sent from my iPhone using Tapatalk
     
  12. Keith the Cop

    Keith the Cop Member

    155
    Oct 13, 2009
    Long Island
    2000 400DB
    1989 340 Sundancer (Gone but not forgotten)
    3116 Cats
    They're actually readily available. I believe I have the part # somewhere.
     
  13. KnotCruisin

    KnotCruisin New Member GOLD Sponsor

    9
    Jan 16, 2017
    Carolinas
    Currently boatless
    Sea Ray 330 Sundancer - Sold
    Sea Ray 24 Sundeck - Sold
    Boatless
    Hi guys,

    new guy here, looking to get into a 400DB in the next 18 months or so... Quick question: Has there been a discussion about the pros&cons, advantages/disadvantages of the up to 2004 model year 400DB vs the newer 2005+ models?

    Thanks!
     
  14. scooper321

    scooper321 Member SILVER Sponsor

    307
    Jul 4, 2015
    Baltimore, MD
    2003 Sundancer 320, Simrad NSS9 evo2 w/ P79 in-hull transducer
    Twin 5.7L Horizon Mercruiser (350 MAG MPI) V-drives
    I haven't seen a specific thread on that. But I can tell you within this thread there are a lot of tidbits like that. Like the layout of the bridge in the first 1990's models, to the different cabin layouts in the late 90's to 2000's. I'd recommend going through all of these pages (yes, really - you're about drop a significant amount of money, shouldn't you learn all you can about what you're buying?) and also look at the various configurations of the models on boattrader and yachtworld. And then if you have specific questions (which is better: Cummins or Cat diesels? Should I get a hydraulic swim platform? etc.) you should ask them here. People will be glad to help but you have to ask specifics.
     
  15. Arickosmo

    Arickosmo Member

    145
    Apr 10, 2012
    Middle Coast
    2003 400DB
    Mercruiser 8.1L
    When did the 8.1L replace the 7.4 on the 400DB? I realize there might be some overlap but I can't seem to nail down a year that it started.
     
  16. my3sons

    my3sons Active Member SILVER Sponsor

    Feb 24, 2009
    Upstate NY (lake Erie)
    2004 400DB, Onan 9 kw Gen, Highfield RIB,
    Cummins 6CTA
    2001, and there was some overlap, depending on build date and how many 7.4's were laying around waiting to go into boats.
     
  17. Arickosmo

    Arickosmo Member

    145
    Apr 10, 2012
    Middle Coast
    2003 400DB
    Mercruiser 8.1L
    Anyone had to replace all the black rubber seal around the windshields? Specifically the ones on the sides of the boat. I am looking at a boat where these have "pulled" away or shrank and I'm concerned about it being outside.

    ****UPDATE

    Followed a chase of ZZ13:

    http://clubsearay.com/showthread.php/77288-Window-Seals?p=878460#post878460

    led to...

    http://www.taylormarine.com/hardware/parts/vinyls/index.html

    Haven't called, don't have a boat yet. I'll return here if/when I do.

    (Thanks cwiert!!)
     
    Last edited: Jan 24, 2017
  18. cwiert

    cwiert Member SILVER Sponsor

    384
    May 7, 2008
    Westbrook, CT
    1998 400 Sedan Bridge
    CAT 3116 - 350HP
    Mine have also pulled away in places. This "seal" is cosmetic only. I believe ZZ13 has replaced these. He's also the one that told me that they are cosmetic only, so I wouldn't worry too much about it being outside.
     
  19. Arickosmo

    Arickosmo Member

    145
    Apr 10, 2012
    Middle Coast
    2003 400DB
    Mercruiser 8.1L
    Anyone had to replace the mattress? We did on our 370 and had to have it custom made. Wondering if there's someone out there building a replacement.

    Getting closer....
     
  20. ZZ13

    ZZ13 Active Member GOLD Sponsor

    Nov 25, 2009
    Lady's Island, SC
    2001 400 Sedan Bridge
    Cummins 450 Diamond
    The previous owner of mine replaced all three mattresses with custom fit from these guys. [​IMG]


    Sent from my iPhone using Tapatalk
     

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