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  1. #1

    Default 3116 turbo issue

    While replacing my air filter I reached in to spin the compressor wheel on the turbo as the boat had been sitting for a few months. One of the wheels was frozen and would not turn. I got it to turn but because I was an idiot and pryed with something I shouldn't have, I broke a small piece off the the compressor wheel. It appears that I could remove the compressor housing while the turbo is still installed to get to the compressor wheel and replace it. It would also allow me to check the housing to ensure the broken part hasn't gone inside to do any damage to the engine. Is this a feasible repair with the turbo installed?

  2. #2
    Join Date
    May 2007

    Default Re: 3116 turbo issue

    no - you can have the turbo off in 30 minutes, and you cannot repair it yourself. take it to the pros.
    Last edited by hystat; 01-26-2012 at 09:17 PM.
    Factory Manual Best, Seloc 2nd best, Clymer if you're desperate.

  3. #3
    Join Date
    Sep 2010
    Jersey Shore

    Default Re: 3116 turbo issue

    Take the whole turbo housing off, not just the compressor. The will need to check the housing clearances.

    And as hystat stated, leave this to a professional re-builder.
    Dockside Marine Services
    Jersey Shore.
    Mercruiser/Mercury Certified
    Let the insanity begin.

  4. #4

    Default Re: 3116 turbo issue


    I saw your original post regarding the Caterpillar 3116 Marine turbocharger and want to post more information for those who may run into the same problem in the future. Typically when a marine turbocharger is not turning or is intermittently functioning its time to remove the turbocharger for evaluation. When a marine turbocharger doesnt turn there are two possible causes, bent shaft or corrosion in the turbine housing.

    We specialize in marine turbocharger sales and service for all diesel engine manufacturers and have plenty of experience assisting customers with turbocharger failures. The most common issue we come across is turbine housing deterioration from salt water entering the exhaust outlet. If the impeller is rubbing the housing chances are the turbocharger ingested a foreign object ultimately bending the shaft.

    Turbine housings that are exposed to salt water will eventually begin to deteriorate and small pieces of the casting will fall into the turbine wheel and ultimately locking it in place. Another scenario would be small metal shavings will end up behind the turbine wheel's heat shield, as the shavings build up behind the heat shield the shield will wedge itself into the turbine wheel, locking or restricting it.

    If you have any questions regarding this issue feel free to call us direct, please reference the thread when calling.

    Thank you,

    Tri-State Turbocharger LLC
    80 Greenwood Avenue #12
    Midland Park, NJ 07432
    1-888-292-7001 Main
    1-201-857-0555 Local
    1-877-882-9433 Fax
    Last edited by Tristateturbo.com; 04-11-2014 at 07:07 AM. Reason: grammar

  5. #5
    Join Date
    May 2010
    DC Burbs/Maryland Eastern Shore

    Default Re: 3116 turbo issue

    To add, please don't be tempted by the flood of cheap Chinese aftermarket turbo parts.
    Practicing the ancient art of ren-ching

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