40 sedan bridge forum

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

  1. ZZ13

    ZZ13 Well-Known Member GOLD Sponsor

    Nov 25, 2009
    Lady's Island, SC
    2001 400 Sedan Bridge
    Cummins 450 Diamond
    At one time Marinebeam sold replacement 225 degree and 135 degree festoon led bulbs specifically as replacements for our Perko mast lights. I bought them and put them in mine when they did. I think they are here:
    https://store.marinebeam.com/perko-...MIlLSY48HA3QIVR-DICh2hrAJAEAQYASABEgJVPfD_BwE
     
    Last edited: Sep 16, 2018
  2. Tigger

    Tigger Member

    89
    Jul 7, 2015
    Long Island, NY
    Sea Ray Sedan Bridge 400
    2 x Cummins diesel inboards
    My A/C units work fine, but the water flow has always been low compared with other boats I notice in the marina (where water positively gushes out)... see attached pics that show the water "dribbling" out of the discharges... I have cleaned the strainer, flushed the system through with fresh water.. I've even added a/c pan tablets to the strainer to control growth, but to no avail... so my question: is what you all see the normal flow from the A/C discharge, or is my pump about to fail?... all comments/thoughts/observations welcome.

    Cheers,
    Simon
     

    Attached Files:

  3. FeLizDream

    FeLizDream Member GOLD Sponsor

    245
    Jun 28, 2015
    Marco Island Yacht Club, FL
    2001 Sea Ray 400 Sedan Bridge, with engine synchronizer.
    Cummins 6cta 450 HP, prop 22 Lx 23" L cup.
    Simon

    My forward AC was doing the same, very slow drain, I flushed the entire system with barnacle buster for one hour, and now the drain is 100 % better, I did it myself, went to Home Depot bought a pump and some clear hose line and I did a loop. After a year still flushing water at a full speed.
     
  4. Tigger

    Tigger Member

    89
    Jul 7, 2015
    Long Island, NY
    Sea Ray Sedan Bridge 400
    2 x Cummins diesel inboards
    Thanks for the quick response... so did you flush each line separately, I thought they are connected?... trying to visualize the set up?... I'm imagining 2 clear hoses (one from each discharge), connected via "Y" fitting to a single hose then back to a bucket of barnacle buster, which, in turn has a hose and pump feeding back in to the system... should I draw a picture? LOL

    Thanks,
    Simon
     
  5. FeLizDream

    FeLizDream Member GOLD Sponsor

    245
    Jun 28, 2015
    Marco Island Yacht Club, FL
    2001 Sea Ray 400 Sedan Bridge, with engine synchronizer.
    Cummins 6cta 450 HP, prop 22 Lx 23" L cup.
    Yes, Each one separately
    you need to connect to each AC unit in the Out and IN on the unit and create a Loop with a pump recirculating it.
    try to click the link below, i post a video in YouTube

     
  6. FeLizDream

    FeLizDream Member GOLD Sponsor

    245
    Jun 28, 2015
    Marco Island Yacht Club, FL
    2001 Sea Ray 400 Sedan Bridge, with engine synchronizer.
    Cummins 6cta 450 HP, prop 22 Lx 23" L cup.
    Dear Simon, here is a second video, hey i am not a video professional, i did it so i will remember for next time
    Hope it helps
    click the link below

     
    Tigger likes this.
  7. PMC

    PMC Well-Known Member

    Apr 10, 2009
    Long Island, NY
    2001 40 Sedan Bridge
    Cummins 6CTA
    I do a simmilar flush on my ac units using a home depot Prep and Etch - phosphoric acid.

    You can circulate both ac units at the same time with less hose disconnects (I'm lazy haha).

    Pull the output hose on the fwd ac and attach the bucket pump. Take off the output hose from the salon ac and attach return line to the bucket. Close the seacock and turn the pump on.

    Alternately a garden hose quick connect fits really well in the through hull fitting if you want to do the entire hose system.

    [​IMG]
     
    tdschafer likes this.
  8. Tigger

    Tigger Member

    89
    Jul 7, 2015
    Long Island, NY
    Sea Ray Sedan Bridge 400
    2 x Cummins diesel inboards
    I like the idea of flushing the entire system (inc discharge hoses) all at the same time. I'm not sure it's ever been done with barnacle buster, although I flush it through with fresh water fairly regularly. So, before I head to Home Depot, let me get the set up straight:
    1. Turn off A/C systems at the main panel
    2. Run 2 garden hoses from through hull fittings back to a bucket (on the swim platform?)
    3. Close the A/C sea cock and remove the strainer basket.
    4. Run a garden hose from a pump (in the bucket on the swim platform) to the flushing valve on the top of the A/C strainer
    5. Fill the bucket with barnacle buster or clean and etch (neat? or diluted?)
    6. Run the flushing loop for an hour (or more?)
    7. Disconnect loop, replace strainer, open sea cock and turn on A/C systems and watch the magic happen
    What did I miss? Also, if I use (32 oz) Krud Kutter clean and etch concentrate instead of barnacle buster, do I dilute in water, or use it neat?

    Thanks in advance for the (continued) help.

    Cheers,
    Simon
     
    Last edited: Sep 19, 2018
  9. PMC

    PMC Well-Known Member

    Apr 10, 2009
    Long Island, NY
    2001 40 Sedan Bridge
    Cummins 6CTA
    Sounds all good.

    Make sure the secock is closed, and the strainer lid is secure. You want the solution flowing through the Tee on the pump, not out the strainer or hull of the boat.
    Run it with fresh water first. Mostly to verify you have a solid hose connection....I'd hate to be this far into a project, and find a leak, needing to run back to the hardware store.
    Dump the bucket and add a gallon of your favorite cleaner, straight up. It is fine to mix with what water already is in the lines.
    Periodically inspect the debris coming out the hose, and after roughly 1 hr all the "crap" will be clear. At first you will find big chunks.
    Manditory for many, make sure you keep your body fully hydrated with you favorite pass time beverage!
     
    Tigger and FeLizDream like this.
  10. Tigger

    Tigger Member

    89
    Jul 7, 2015
    Long Island, NY
    Sea Ray Sedan Bridge 400
    2 x Cummins diesel inboards
    Excellent... especially the "keep your body fully hydrated" part... as if I'd forget something so fundamental :)... but, to your point about blowing the installation apart, any thoughts/recommendations on pump size for the bucket?... too small won't push the crud through the system, but too big will blow the lines off the through hull fittings... thoughts?

    Cheers,
    Simon
     
  11. ZZ13

    ZZ13 Well-Known Member GOLD Sponsor

    Nov 25, 2009
    Lady's Island, SC
    2001 400 Sedan Bridge
    Cummins 450 Diamond
    I use a 500gph Rule bilge pump.
     
    Tigger likes this.
  12. PMC

    PMC Well-Known Member

    Apr 10, 2009
    Long Island, NY
    2001 40 Sedan Bridge
    Cummins 6CTA
    I've used a Rule 450 pump and it worked fine. I didn't like wiring direct to the batteries, and swapped the pump with a submersible utility pump (1600gph). I was a little nervous with the large pump that it would not hold, but all good..........i just realized you are from NY. where in LI are you?
     
    Tigger likes this.
  13. Tigger

    Tigger Member

    89
    Jul 7, 2015
    Long Island, NY
    Sea Ray Sedan Bridge 400
    2 x Cummins diesel inboards
    North Shore... I just PM’d you!... Love Long Island boating... some of the best cruising I’ve experienced... West to Manhattan, or North/East to Connecticut, Montauk, Block Island etc etc etc...

    Thanks for all the help!

    Cheers
    Simon
     
  14. Tigger

    Tigger Member

    89
    Jul 7, 2015
    Long Island, NY
    Sea Ray Sedan Bridge 400
    2 x Cummins diesel inboards
    Doing some Market Sensing here... I'm about to list our beloved SB 400... she's been an absolute joy, but the family has outgrown her and it's time for us to consider moving up... a couple of key points that differentiate our boat from others:
    - Very clean 2003 boat (last build year) with Cummins Diesels (~930 hours)
    - Bow thruster
    - Back up camera
    - Satellite TV (in every cabin)
    - Flat screen TVs in salon and in each cabin
    - New stereo system (isolating state room, salon, cockpit and fly bridge), with Bluetooth, Pandora, Sirius XM etc... (2018)
    - New Isotherm cockpit fridge (2018)
    - New stainless steel microwave in galley (2018)
    - Brushed stainless steel fridge door panels (2018)
    - New isinglass on fly bridge (2018)
    - Bottom paint and zincs (Jul 2018)

    Under the heading of "super fastidious owner" I also have the latest oil sample records from Blackstone Labs from the last oil change (both engines passed with flying colors), if anyone's interested?.

    I'd be interested to hear what this forum might think she's worth? Please DM me any thoughts on that?... also DM me with any additional questions and if you want any pictures?

    Cheers,
    Simon

    PS You can see your face in the hull gel coat, see attached taken in Jul when she was pulled for bottom paint and zincs. A very clean boat.
     

    Attached Files:

    Last edited: Sep 23, 2018
  15. Drafter

    Drafter Active Member

    125
    Oct 5, 2017
    Grand Lake O' The Cherokees, Oklahoma
    1998 400 Sedan Bridge
    1969 Boston Whaler 13
    Horizon 454 380's
    For the few of you guys with gas boats...
    I've been fighting my starboard engine shutting off for a bit at idle and running rough. Above idle it is fine. I've been chalking it up to hot weather and vapor lock. Now I think and hope that it's just the IAC valve which regulates idle air intake. A fix has been getting more air in the engine room when it's hot by popping open the lazarette. Last weekend, with just the wife and I and 1/4 thanks of fuel, I ran the boat wide open a bit. Ran great, 4600 rpm each side and about 30mph on GPS. This is with the lazarette hatch open. Lots of nice cool air to injest. I've only seen that speed once before on the day that I bought it with the hatch open, just listening and watching for leaks. All other times, I'm about 4200 rpm max and maybe 25 mph. Are these engines really choked and starving for air this much with the factory fresh air intakes?? I'm almost considering adding additional intake ducts into the engine room through my bridge stair risers and under stair sole. I'm obviously not running that speed often, but it seems like more air may be better at all rpm's and be less stress on the engines.
     

    Attached Files:

  16. Nepenthe

    Nepenthe Member

    88
    Aug 29, 2011
    Fontana on Geneva Lake, Wisconsin
    400 Sedan Bridge
    7.4L Mercruiser
    Whenever I have had the issue you describe (shutting down at idle or running rough at idle), a tune up with plugs, wires, etc has always immediately fixed the problem. You may see improvement on your top end as well. I typically get 4,600 RPM on both engines at launch in the spring and ~4,400 RPM at the end of the season with bottom growth, etc.

    Out of curiosity, are your blower motors on or off with the 4,200 RPM top end?
     
  17. ynot

    ynot Member

    83
    Feb 14, 2010
    s ca
    400 sedan bridge
    454 mer
    hello
    I remember couple years ago on a boat test having hatch open and testing rpms .the boat was running super fast at 4700 rpm and more
    didn't pay attention on speed though. I was so happy and impressed ,then never got that speed or high RPM again ,
    I think having the hatch open has a lot to do with performance ,I need to look into that now it make sense ,lots of fresh air is needed for better performance .
    thank you for the input
    :)
     
  18. Arickosmo

    Arickosmo Member

    268
    Apr 10, 2012
    Middle Coast
    2003 400DB
    Mercruiser 8.1L
    I run my blowers and I hit 4400-4600 all the time. I'm freshwater though so growth isn't as big of a deal. Fairly clean lake. I usually just leave the blowers on until I'm anchored/tied up for a bit.

    That said, here's another gasser question. Anyone know the thread size of the engine strainer on the '03? I want to build a flush kit for the motors during winterization. I think they're 3".

    Tigger, when I was looking 3 years ago your boat would be a $150-190K boat. I'm not sure where the market is now. Boats that age just crossed the 15 year mark making financing a bit more difficult for buyers without cash. Cummins motors seemed to command better prices and if it's well cared for you should do fine. I would just get on Boattrader, yachtworld, etc and see what is happening. Don't forget that some of those boats have been on there for years.
     
    Last edited: Sep 25, 2018
  19. Drafter

    Drafter Active Member

    125
    Oct 5, 2017
    Grand Lake O' The Cherokees, Oklahoma
    1998 400 Sedan Bridge
    1969 Boston Whaler 13
    Horizon 454 380's
    Thanks for the info. Yes, a little of both. Sometimes on, sometimes off. My factory blowers would get hot and throw the breaker. Both have been replaced with new higher cfm Shurflo yellowtail blowers. They helped a bit, and I tend to run them most of the time now. My wife has told me that when she pops the lazarette hatch. It's like the motors breath a sigh of relief.
     
  20. Drafter

    Drafter Active Member

    125
    Oct 5, 2017
    Grand Lake O' The Cherokees, Oklahoma
    1998 400 Sedan Bridge
    1969 Boston Whaler 13
    Horizon 454 380's
    I'm freshwater as well in Oklahoma with a clean bottom. Just had it hauled 2 weeks ago and touched up a bit.
    I ordered one of these strainer caps last year and think it's great. A little pricey for what it is in my opinion. Double check your Strainer model, not sure on the size in the pic, but is the brand I bought.
     

    Attached Files:

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