CAT 3116/3126 Engine Survey

Discussion in 'Diesel Engines/Drives/Transmissions/Props' started by BBOC, Oct 8, 2018.

  1. BBOC

    BBOC 2003 380DA GOLD Sponsor

    Apr 9, 2017
    Harrison Twp. MI
    03' 380DA Twin 8.1L Horizons
    8.1L Horizons v-Drives
    Looking for suggestions for a good CAT Marine Engine Surveyor in East Michigan/Metro Detroit...

    Just looking for the CAT Engines to be Checked out before I buy... what is the cost some have seen?
  2. The Bill Collector

    The Bill Collector Well-Known Member GOLD Sponsor

    Jun 2, 2008
    Tacoma, WA
    450 Sundancer
    3126 Cat's
    You will want to get a CAT dealer mechanic on board.
    Last edited: Oct 8, 2018
  3. tc410

    tc410 Active Member PLATINUM Sponsor

    Oct 9, 2006
    Charlevoix, MI/Jupiter, FL
    2005 550DB
    MAN CRM-900
    Call the Michigan CAT center nearest to your boat’s location. Tell them you want a sea trial (if the boat’s still in the water) and they will give you an estimate based on engine model, travel distance, etc. That will be more accurate than any guessing that will ensue here on a forum.

    Also, when you call them, give them the engine serial numbers. They will be able to pull up the warranty/service/repair history of the engines for work they have done. If the seller used a different mechanic over the years, that won’t show, but the CAT history could be helpful to you.
  4. fwebster

    fwebster Well-Known Member TECHNICAL Contributor PLATINUM Sponsor

    Oct 6, 2006
    Middle Tennessee ; Panama City Beach, FL
    1996 450DA
    3116 Caterpillars
    For 3100 series engines a full survey on the engines takes about 8 man hours and only requires 1 mechanic. Various Cat dealers have different hourly rates and different add-on’s for travel time, mileage, per diem expenses, truck rental for the service truck. Sometimes the add on’s are quite reasonable but some dealers get way too aggressive and just plain stupid with the add’s so it is best to get a “not to exceed” price before agreeing to the work.

    As far as getting historical data on previous work, if the boat is local to the dealer you might get some service history but the Cat system doesn’t usually retain warranty info after the warranty period has expired. Most of these boats are approaching 20 years of age so about all you will get are in service dates and whether the engines are original to the boat.
  5. 400 EC Michigan

    400 EC Michigan Member

    Aug 21, 2010
    Lake Huron (homeport Lexington, Michigan)
    1997 450 Sundancer
    Twin Garmin 8012 units
    Garmin Fantom Open Array
    ICOM M604
    Raymarine autopilot
    Caterpillar 3126
    I second the above. Call MICHIGAN CAT (586-997-5300) and talk with Vicki Sharrow (I believe her extension is 1714) to arrange for Mike to check the engines during a sea trial and verify all updates have been corrected/performed. if they have been servicing the engines, she should be able to provide you with past service reports by providing the engine serial numbers. Good luck
  6. dtfeld

    dtfeld Water Contrails GOLD Sponsor

    Jun 5, 2016
    Milton, GA
    410 Sundancer
    Axiom 12 MFD
    Cat 3126 V-Drives
    I did an engine only survery in the Tampa area earlier this year on twin 3126s for $1600. I had a 2 man team looking over the engines from a cold start to a WOT run including pulling fluid samples from both engines, transmissions and generator. Took a full 8 hours. Local CAT dealer was Ring Power. Good guys.

    Expensive, but it gave me peice if mind i was buying a boat in good working order.
    Last edited: Oct 9, 2018
    bbwhitejr likes this.

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