410 Sundancer/Express Cruiser and 400 Sundancer/Express Cruiser **Official Thread**

Discussion in 'Sport Yachts/Yachts' started by mistercomputerman, Jul 21, 2012.

  1. JVM225

    JVM225 Well-Known Member

    Apr 8, 2008
    Farmingdale, NY
    2002 410 Sundancer, Monaco Edition.
    3126 Cats.
    No vibration problems because of the support.
    Mine is secured with four Phillips head screws (2 on each end) secured in place with Nylock nuts and flat washers from the bottom.
    That thing is held in there pretty tight and the Nylocks don’t loosen up.
    Could your vibration be coming from one, or both, of the latches that hold the removeable deck panel over the generator in place?
    If so, maybe you can tighten them up a bit.
     
  2. carterchapman

    carterchapman Well-Known Member TECHNICAL Contributor SILVER Sponsor

    Mar 25, 2008
    Lake Chickamauga/Marietta, GA/Ft. Myers, FL
    2006 Sea Ray 58 DB
    MAN CRM V8-900s, Twin Disc Drives; Onan 21.5 Generator
    Erik,

    When I owned my 410, I found if I left the main hatch closed and laid on it, I could reach down and change oil filter/fuel filter/impeller pretty easily through the genny hatch. I still had to make a pretzel out of myself and climb behind the stbd engine to change the genny's zinc though!
     
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  3. hakunamatata

    hakunamatata Member SILVER Sponsor

    194
    Aug 18, 2015
    Southport Marina - Kenosha WI - Lake Michigan
    410 Sundancer
    Caterpillar 3126
    Sorry, my question was pertaining to after you removed it? It looks like you reinstall the bolts so was curious. Mine is screwed as well as looks like silicone sealant was also included. I do not have any vibration currently, was just curious if once you removed, had you experienced any? It appears you haven't though.
     
    JVM225 likes this.
  4. hakunamatata

    hakunamatata Member SILVER Sponsor

    194
    Aug 18, 2015
    Southport Marina - Kenosha WI - Lake Michigan
    410 Sundancer
    Caterpillar 3126
    Thanks Carter, I may try this the next time I have to change things out. My Silverton had a support bar similar to the 410 but was removable to allow full access to the engine room, and don't understand why SR didn't do the same with this bar.
     
  5. carterchapman

    carterchapman Well-Known Member TECHNICAL Contributor SILVER Sponsor

    Mar 25, 2008
    Lake Chickamauga/Marietta, GA/Ft. Myers, FL
    2006 Sea Ray 58 DB
    MAN CRM V8-900s, Twin Disc Drives; Onan 21.5 Generator
    My bar was siliconed as well, but I never took it out.
     
  6. JVM225

    JVM225 Well-Known Member

    Apr 8, 2008
    Farmingdale, NY
    2002 410 Sundancer, Monaco Edition.
    3126 Cats.
    Yes, I remove it when I’m going to work in that area, and replace it once the work is done. Mine had silicone too, but I removed it all the first time I took the brace out, never replaced the silicone, and haven’t noticed any real need for it.
    The four screws and Nylocks keep the support tight, and I don’t see any rush or water getting in the bilge because of the missing silicone.
     
  7. JVM225

    JVM225 Well-Known Member

    Apr 8, 2008
    Farmingdale, NY
    2002 410 Sundancer, Monaco Edition.
    3126 Cats.
    Yeah, that zinc is a tough one to get to.
     
    carterchapman likes this.
  8. carterchapman

    carterchapman Well-Known Member TECHNICAL Contributor SILVER Sponsor

    Mar 25, 2008
    Lake Chickamauga/Marietta, GA/Ft. Myers, FL
    2006 Sea Ray 58 DB
    MAN CRM V8-900s, Twin Disc Drives; Onan 21.5 Generator
    I don't recall ever being able to reach it from the top...
     
  9. dtfeld

    dtfeld Water Contrails GOLD Sponsor

    727
    Jun 5, 2016
    Milton, GA
    410 Sundancer 2001
    Cat 3126 V-Drives
    I can reach it, but I have pretty long arms and as I recall I was standing on my head the whole time.
     
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  10. Stee6043

    Stee6043 Well-Known Member

    Jun 1, 2015
    West Michigan
    1997 Sundancer 400
    7.4L Gassers
    If any of us had a sense of humor we would have been collecting photos and videos of our maintenance escapades since our very first DIY repair.

    We probably all chuckle on the inside when we read comments like "standing on my head the whole time" because we've done it...and it hurt....for a few days after....
     
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  11. JVM225

    JVM225 Well-Known Member

    Apr 8, 2008
    Farmingdale, NY
    2002 410 Sundancer, Monaco Edition.
    3126 Cats.
    Just searched archives for pictures of the Aetna’s mounted in the dash. They look fantastic.
     
  12. TNT8808

    TNT8808 Active Member PLATINUM Sponsor

    254
    May 25, 2016
    West Michigan
    2008 48 Sundancer
    Cummins QSC 540's
    Avon Seasport 340
    40 HP Yamaha
    This was one of my favorite upgrades to our 410DA, and they stayed within 1-2 RPM of each other at cruise.

    -Tom
     
  13. HUMPH

    HUMPH Well-Known Member

    Nov 4, 2009
    SF BAY AREA
    2003 410DA,
    2004 C14 Caribe
    CAT 3126TA's 350HP/
    50HP Honda
  14. hakunamatata

    hakunamatata Member SILVER Sponsor

    194
    Aug 18, 2015
    Southport Marina - Kenosha WI - Lake Michigan
    410 Sundancer
    Caterpillar 3126
    Frank, is this something you can adjust on your own, or would you require CAT to come out and make the adjustment. I will have to wait until spring, but think my starboard is set to low.
     
  15. Wistlindixie

    Wistlindixie New Member

    26
    Jun 18, 2018
    Michigan
    450 DA
    CAT 3126
    Do the cat 3126’s have a thermostat on raw water side?

    I used a 14 gallon tub and dumped 7 gallons of antifreeze in it and started the cold engine until it sucked it all in. Will this be sufficient? Or is there a y in the system that doesn’t allow all areas to get the antifreeze in and the water out?
     
  16. fwebster

    fwebster Well-Known Member TECHNICAL Contributor PLATINUM Sponsor

    Oct 6, 2006
    Middle Tennessee ; Panama City Beach, FL
    1996 450DA
    3116 Caterpillars
    You can, if you have an accurate tach to use. You can either install Aetna tachs which will solve your squirrely tach problem forever or you can buy a digital laser photo tach to set the idle speed.


    No. The seawater side is wide open all the time.
     
  17. Bop

    Bop Active Member

    250
    Sep 3, 2013
    Georgian Bay/Lake Huron
    2001 410 Express, Highfield DL350 w/40hp Yamaha
    Cat 3126
    Anyone have part #'s? I would be interested in doing this upgrade.
     
  18. TNT8808

    TNT8808 Active Member PLATINUM Sponsor

    254
    May 25, 2016
    West Michigan
    2008 48 Sundancer
    Cummins QSC 540's
    Avon Seasport 340
    40 HP Yamaha
    This is what I purchased: 8905R-P-H-DS Tachometer with Polished Bezel, however due to my final installation if I were to do it over again I would have gone with the black bezel.

    -Tom
     
  19. JVM225

    JVM225 Well-Known Member

    Apr 8, 2008
    Farmingdale, NY
    2002 410 Sundancer, Monaco Edition.
    3126 Cats.
    No thermostat on raw water side.
    If you have a tub that can hold 7 gallons and fit between the engines:
    Take the hose off of the through hull.
    Hold it in the tub full of 7 gallons of antifreeze.
    Have an assistant start the motor and stand by ignition switch.
    You hold hose in bucket while antifreeze gets sucked up.
    When you get close to empty, yell to assistant to shut down motor.
    Time it so all the antifreeze gets in there, but pump doesn’t run dry. This is easier to do than it sounds once you see how the antifreeze gets sucked up.
    Reattach hose and tighten clamps.
    Repeat on other motor.
     
  20. TitanTn

    TitanTn Member SILVER Sponsor

    315
    Jul 12, 2015
    Chattanooga, TN
    1986 Saltare, 1998 400 Express
    454 direct drive; twin 3116TA
    I’m going to do this upgrade as well, but just for the record, I like the look of yours with the the polished bezel. The black blends in but to me it emphasizes the smallness of the new gauge. You end up with too much black. I’ll be doing my install just like yours.
     

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