40 sedan bridge forum

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

  1. ZZ13

    ZZ13 Well-Known Member

    Nov 25, 2009
    Lady's Island, SC
    2001 400 Sedan Bridge
    Cummins 450 Diamond
    Yup. Just double stick rubber tape all the way around the frame. Previous owner had done it and when I took his down there was a tape groove in the vinyl. So we put our own stuff up in its place. It does dress up the place versus just a blank vinyl wall.
     
    Njlarry likes this.
  2. Pgeee

    Pgeee Member

    97
    Nov 22, 2021
    AUSTRALIA
    Sedan Bridge 400 1996
    Cat 3116
    Is there any increased risk of draining port and starboard , port is normally nicely isolated not being a house bank. so if the house drains starboard , emergency start from port is still there. Would not want to be in a situation with both banks drained , Murphy’s law that day the genny would not start
     
    techmitch likes this.
  3. scooper321

    scooper321 Well-Known Member

    Jul 4, 2015
    Baltimore, MD
    2003 Sea Ray 400DB
    Twin Cummins 6CTA-8.3
    The logic seems sound. There's no apparent way for the port engine bank to be drained by anything other than a malfunctioning charger. So you could drain the thruster batteries all the way down, and the house batteries too, without affecting the port engine bank. Just don't get complacent about those port batteries!

    I'm curious... why do you have an inverter, when you have a gen? Is that just so you can power AC devices without the noise of the gen? That's a lot of extra complexity, cost and space required just to avoid firing up the gen. What am I missing about the use of the inverter?
     
    TotallyGross and Steve S like this.
  4. jzanthony

    jzanthony Active Member

    283
    Aug 17, 2015
    Port Lambton, ON Lake St Clair
    400 Sedan bridge 2000 , 2019 SeaDoo RXT230
    Cummins CTA 8.3 diesels
    Has anyone ever relocated the Fresh water holding to Master berth, Looks like a large spot behind forward A/C.

    Our previous 380 was located here and worked out good, trying to think of ways to make ER more accessible.

    Jamie
     
    Njlarry likes this.
  5. Njlarry

    Njlarry Active Member

    561
    May 9, 2021
    Chesapeake bay
    2000 400 DB
    AT LAST
    Cat 3126
    What a great idea! It would help with trim and finally give access to the steering gear. However eyeballing it not sure the area is large enoughl
     
  6. jzanthony

    jzanthony Active Member

    283
    Aug 17, 2015
    Port Lambton, ON Lake St Clair
    400 Sedan bridge 2000 , 2019 SeaDoo RXT230
    Cummins CTA 8.3 diesels
    I wouldn't be against a smaller tank, we hardly use this one just didn't want eliminate it completely for resale purposes.
    Probably have to move the fill and new hoses, alot easier to get at fresh water pumps too.

    Jamie
     
  7. mike1234

    mike1234 New Member

    5
    Dec 26, 2022
    2001 Sea Ray 400 DB Raymarine E120 gps
    cummins 8.3 6cta 450
    Hi everyone Have anyone had to repack the rudders. I looked just can't see how to get back there!
     
    roney klemens likes this.
  8. Njlarry

    Njlarry Active Member

    561
    May 9, 2021
    Chesapeake bay
    2000 400 DB
    AT LAST
    Cat 3126
    Hence the post just two above. Imho the steering gear on the 400 is dangerously not accessible. I am searching for a way to cut an access panel either in the trunk or under the cockpit seat.
    Another possibility is removing the batteries and chargers, then sliding the water tank to port, remove the gen water lift muffler on the starboard side and hope to crawl around the gen and tank. Not a part of anyone's weekly safety check.
    Would like to hear if anyone has found a better way.
     
    jzanthony likes this.
  9. ZZ13

    ZZ13 Well-Known Member

    Nov 25, 2009
    Lady's Island, SC
    2001 400 Sedan Bridge
    Cummins 450 Diamond
  10. Njlarry

    Njlarry Active Member

    561
    May 9, 2021
    Chesapeake bay
    2000 400 DB
    AT LAST
    Cat 3126
    Thank you ZZ but I am still confused as removing the gen batteries or main batteries still has the steering gear blocked by the genny and the water tank. The pics show the view of a camera held under the water tank but dont think my skinny nephew could squeeze in there let alone do any wrenching,.
    Glad you managed it. What did you use for packing and where you able to remove the old stuff? Both my packing and hydraulic ram are overdue.
     
  11. ZZ13

    ZZ13 Well-Known Member

    Nov 25, 2009
    Lady's Island, SC
    2001 400 Sedan Bridge
    Cummins 450 Diamond
    I only packed the rudder glands. I didn’t need to access the steering linkage. I left what was in there and added two new rows of packing cord. Seven years later no leaks and no retightening.
     
    Njlarry likes this.
  12. ZZ13

    ZZ13 Well-Known Member

    Nov 25, 2009
    Lady's Island, SC
    2001 400 Sedan Bridge
    Cummins 450 Diamond
    Redoing all the boat seating. Tore apart the captains chair bolsters to replace its vinyl. Mounting bracket nice and yucky. So I gotta smooth that down and repaint it. Wood mounting piece nice and dry and soft. So gotta make new one if those too.
    72F7D57C-D7CE-4C4A-8CF3-27A8EDD206B4.jpeg E8CA78EC-9008-46B1-A063-AE067A6AB543.jpeg
     
    dtfeld likes this.
  13. dgerrit

    dgerrit Member

    45
    Jul 17, 2017
    Stockton California
    400 Sedan Bridge 1999
    CAT 3116 350hp
    Thanks for reviewing the concept. I believe the ACR should prevent the port bank from ever draining at the hands of the inverter. It is supposed to sense a voltage drop on either bank and cut the circuit when that occurs.

    The inverter works out pretty well for the weekends away from shorepower. When underway i dont mind running the generator except it seems excessive to have a third diesel engine running for minimal AC draw like my kids watching TV. When relaxing on the hook i like to keep the noise and fumes to a minumum, as we usually are hanging out on the swim deck and cockpit. It will run all the minor stuff like fans, TVs, fridge, wifi modem, eufy cameras, and charge devices all day with one or two brief runs of the generator to charge the batteries. And those runs usually coinside with cooking or showers when we need the gen anyway. The key to me though is the fridge draws from it first before switching to DC and the Stbd bank. That prolongs the charge and use of all the DC accessories like lights, stereo, water pumps, head system, underwater lights, hydraulic swim platform, davit, pumps for floaties, etc...my theory anyway...
     
  14. ttmott

    ttmott PhD in OCD TECHNICAL Contributor

    Apr 3, 2012
    Space Coast Florida
    2006 52 Sedan Bridge
    Cummins QSM11
    A couple of things I noticed - first there is a mix of battery types which lends the charging and discharging unbalanced. Secondly the charger is way undersized for the job; it will be working it's little heart out constantly and ultimately failing early. The imbalance is probably what took out the battery. To charge multiple battery banks from an alternator you will need one of these - https://www.victronenergy.com/uploa...olators-with-alternator-energize-input-EN.pdf But, then again you'll be working a "stock" alternator until it overheats and fails; so, an upgraded high output alternator will be needed.
     
  15. dgerrit

    dgerrit Member

    45
    Jul 17, 2017
    Stockton California
    400 Sedan Bridge 1999
    CAT 3116 350hp
    Thank you. Clarifying questions:
    ...by battery type mix; the 12v linked to the parralleled 6v sets will cause a charge/discharge imballance - makes sense and I also suspect that is contributing to the short 12v battery life. Potential solution to exchange the 12v for 2x 6v for the thruster?

    ...interesting option for isolator for the alt charge. Is the benefit of this over the ACR that it doesnt rely on a voltage drop to disconnect the circuit, as its always isolated? I did upgrade the alternators to 80amp (self exciting) from the original 50amps. Do you think that is enough?
     
  16. ttmott

    ttmott PhD in OCD TECHNICAL Contributor

    Apr 3, 2012
    Space Coast Florida
    2006 52 Sedan Bridge
    Cummins QSM11
    I don't know what type the 12 volt battery is but it's amp hour capacity is probably quite a bit different (less) than the two large 6 volt batteries in series. So when the charger senses the 12 volt battery (or any battery) is fully charged it will go into float mode even though the 6 volt system is grossly under charged.
    The detrimental part of this configuration is the 6 volt batteries will take a permanent memory of a lower fully charged voltage. You will never be able to charge and maintain those batteries to their full original potential. To further the issue - adding new batteries to a battery bank that is old and has problems will damage the new batteries also.
    At this point it would be best to have the 6 volt batteries tested (check their Resting Voltage) to see if they would be compatible with a couple of new 6 volt batteries.
    The difference between the Argofet and ACR is the battery banks are never tied together using the Argofet which isn't a bad thing to temporarily tie them together but not the best in a correct charge profile, the higher charged battery or when a charger goes into Bulk charge mode simply flows electrons (current) to the lower charged battery until that differential is reduced to a point the ACR opens up the circuit; this is not an optimum situation for different batteries. In a configuration using an ACR, you would want all of the charging on the largest capacity battery bank and let the ACR maintain the smallest bank (the starting bank). This brings a bit of a failure mode in where if the ACR should fail there is nothing to recharge the start bank. The Argofets will help resolve this.
    Actually, to really do this system correctly I'd add the Victron Argofet to both of the engine alternators and charge that house bank from both alternators yet separately take care of the engine start banks. Lastly, for that house bank, I'd recommend a good inverter charger (maybe you already have that) so those batteries have a full function high amperage charge profile.
     
    dgerrit likes this.
  17. dgerrit

    dgerrit Member

    45
    Jul 17, 2017
    Stockton California
    400 Sedan Bridge 1999
    CAT 3116 350hp
    Thank you! Very good points and guidance. I appreciate it.
     
  18. Njlarry

    Njlarry Active Member

    561
    May 9, 2021
    Chesapeake bay
    2000 400 DB
    AT LAST
    Cat 3126
    Port sofa storage.
    Has anyone found a way to access the area under the port sofa with motor mechanism to use that area for storage? It would be great to store rolled cockpit curtains etc. there but there does not seem to be way to either lift the seat or the side panel.
     
  19. Steve S

    Steve S Well-Known Member PLATINUM Sponsor

    Jun 5, 2007
    Northern IL.
    2000 400 Sedan Bridge with twin CAT 3116's

    2000 340 Sundancer - SOLD!
    210 Monaco 1987 - SOLD!
    Twin Caterpillar 3116's 350 HP straight drives
    The lower kick panel has about 8 screws holding it to the bottom front lip of the sofa. Mine was removed and laying under the sofa for some reason when I purchased her.
     
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  20. ZZ13

    ZZ13 Well-Known Member

    Nov 25, 2009
    Lady's Island, SC
    2001 400 Sedan Bridge
    Cummins 450 Diamond
    I’ve had that sofa bottom off many times. First remove the lower panel. Three screws hold mine up to the underside of the sofa. Then 6 screws hold the sofa bottom to the frame of the sliding mechanism. Remove those then lift the sofa bottom off. All screws are easy access. Then clean the area because it will be loaded with dust. There are also two screws buried in the carpeting that hold the baseboard against the sofa frame. Remove those if you just want to slide low profile stuff in and out without removing the sofa bottom.
     
    Njlarry likes this.

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