Official Caterpillar3116/3126 Thread

Discussion in 'Diesel Engines/Drives/Transmissions/Props' started by carterchapman, Feb 12, 2021.

  1. The Bill Collector

    The Bill Collector Well-Known Member GOLD Sponsor

    Jun 2, 2008
    Tacoma, WA
    1998 450 Sundancer, Achilles dinghy w/15hp
    3126 Cat's
    Here is the previous thread on the relay... http://www.clubsearay.com/index.php?threads/cat-3126-shut-down-while-running.79104/
     
  2. New Horizon

    New Horizon Member

    88
    Nov 1, 2018
    420 Aft Cabin MY 1997
    Twin 3116 Cats.
    Update: Old fuel filters were clear and no leakage. Installed new ones so I think we can eliminate that problem. Another thought for all of you to ponder. The halon system has sensors which can and do go bad over time. They would shut down the engines right? Just a thought.
     
  3. The Bill Collector

    The Bill Collector Well-Known Member GOLD Sponsor

    Jun 2, 2008
    Tacoma, WA
    1998 450 Sundancer, Achilles dinghy w/15hp
    3126 Cat's
    The relays are under $10 a piece at any auto parts store (mine from O'Reilly's). I would replace them out of routine maintenance if for no other reason.
     
  4. mrsrobinson

    mrsrobinson Well-Known Member SILVER Sponsor

    Mar 9, 2006
    Virginia, USA
    2001 Sea Ray 380DA
    3126 purring CATs
    For those following along at home $10 sounds like cheap insurance to me. Do I need this one for my CATs? Stole the pic from the thread @The Bill Collector referenced.

    2013-09-01_10-24-07_530.jpg
     
    The Bill Collector likes this.
  5. The Bill Collector

    The Bill Collector Well-Known Member GOLD Sponsor

    Jun 2, 2008
    Tacoma, WA
    1998 450 Sundancer, Achilles dinghy w/15hp
    3126 Cat's
    Check your electrical box at the head of your engine or call your CAT dealer and confirm your part matches mine above...
     
    mrsrobinson likes this.
  6. mrsrobinson

    mrsrobinson Well-Known Member SILVER Sponsor

    Mar 9, 2006
    Virginia, USA
    2001 Sea Ray 380DA
    3126 purring CATs
    When I asked the mechanic if I needed to purchase valve cover gaskets for the engine valve lash and fuel injection timing he said it's not necessary, that they are made to be reusable, that he can replace them if I want him to. I'd rather be safe than sorry since I am purchasing all of the parts and he is providing the labor.

    Thoughts?
     
  7. dtfeld

    dtfeld Water Contrails GOLD Sponsor

    Jun 5, 2016
    Milton, GA
    410 Sundancer
    2001
    12" Axiom and 9" Axiom+ MFD
    Cat 3126 V-Drives
    I don’t know what that gasket costs, but given the ones installed could be 20+ years old, I’d replace. CAT parts are pretty reasonable cost wise.

    However, I doubt that gasket is a source of a lot of leaks either.
     
  8. mrsrobinson

    mrsrobinson Well-Known Member SILVER Sponsor

    Mar 9, 2006
    Virginia, USA
    2001 Sea Ray 380DA
    3126 purring CATs
    $127 with tax for both, ordered :)
     
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  9. Steve S

    Steve S Well-Known Member

    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
    K&N Filters are 20% OFF thru June 28. Free shipping on orders over $25. https://www.knfilters.com/

    Need to check our model numbers.


    upload_2022-6-2_15-17-12.png
     
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  10. mrsrobinson

    mrsrobinson Well-Known Member SILVER Sponsor

    Mar 9, 2006
    Virginia, USA
    2001 Sea Ray 380DA
    3126 purring CATs
    Cool, let me know if you find one with a chrome cap, I want to trick out my engines ;)

    On a serious note, let me know if you find ours as well as the crankcase breather.
     
  11. The Bill Collector

    The Bill Collector Well-Known Member GOLD Sponsor

    Jun 2, 2008
    Tacoma, WA
    1998 450 Sundancer, Achilles dinghy w/15hp
    3126 Cat's
    I spent a lot of time several years ago trying to find the K&N filters for my Walker Air Seps. K&N makes them for Walker and they are proprietary for Walker only.
     
  12. dtfeld

    dtfeld Water Contrails GOLD Sponsor

    Jun 5, 2016
    Milton, GA
    410 Sundancer
    2001
    12" Axiom and 9" Axiom+ MFD
    Cat 3126 V-Drives
    Probably smart money. If you didn’t and you got a drip, you would kick yourself.
     
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  13. dtfeld

    dtfeld Water Contrails GOLD Sponsor

    Jun 5, 2016
    Milton, GA
    410 Sundancer
    2001
    12" Axiom and 9" Axiom+ MFD
    Cat 3126 V-Drives
    I bought a new set from Walker, not cheap for an air filter but not break the bank either.
     
    The Bill Collector likes this.
  14. The Bill Collector

    The Bill Collector Well-Known Member GOLD Sponsor

    Jun 2, 2008
    Tacoma, WA
    1998 450 Sundancer, Achilles dinghy w/15hp
    3126 Cat's
    dtfeld likes this.
  15. dtfeld

    dtfeld Water Contrails GOLD Sponsor

    Jun 5, 2016
    Milton, GA
    410 Sundancer
    2001
    12" Axiom and 9" Axiom+ MFD
    Cat 3126 V-Drives
  16. Saverio

    Saverio Well-Known Member GOLD Sponsor

    Aug 31, 2010
    Patchogue, Great Southbay N.Y.
    1995 450 DA
    Cat 3126 420hp
    900 hours Westerbeek Generator
    Great find
    do we know the part number for crack filter. i know mine are stamped KN but no numbers on them
     
  17. mrsrobinson

    mrsrobinson Well-Known Member SILVER Sponsor

    Mar 9, 2006
    Virginia, USA
    2001 Sea Ray 380DA
    3126 purring CATs
    Went to Cater Machinery today to pick up some parts. Once again they are all yellow, not white. Is this normal? They confirmed my engines show up as "marine" in their system.
     
  18. The Bill Collector

    The Bill Collector Well-Known Member GOLD Sponsor

    Jun 2, 2008
    Tacoma, WA
    1998 450 Sundancer, Achilles dinghy w/15hp
    3126 Cat's
    yup...
     
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  19. fwebster

    fwebster Well-Known Member TECHNICAL Contributor PLATINUM Sponsor

    Oct 6, 2006
    Middle Tennessee ; Panama City Beach, FL
    1996 450DA
    3116 Caterpillars
    Yes……in fact, your engines were yellow until Ring Power (The Cat distributor serving the Sea Ray factories in cenral Fla) repainted them Matterhorn White.
     
    Maybe A Dancer and mrsrobinson like this.
  20. mrsrobinson

    mrsrobinson Well-Known Member SILVER Sponsor

    Mar 9, 2006
    Virginia, USA
    2001 Sea Ray 380DA
    3126 purring CATs

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