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3196 Cat questions

Discussion in 'Engines' started by Adopo, Dec 30, 2021.

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  1. Adopo

    Adopo Member

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    So, I have a boat I will be seeing in a few days under contract, but have been doing a bit of research. I found a Grand Alaskan owner in the Seattle area who has the same boat with 3196, and his only complaint is he does not need that much HP. But doing a little google research on here, and other diesel forum sites, it appears that was a bad engine due to all of the known issues that have been published, and lawsuits that were launched to remedy the issues.

    What really got my attention today is that a well known and highly regarded Cat technician I spoke with said he would not survey them because he did not want the liability. That raised a few flags to say the least.

    My question is what has been your real world experience with these? I'm sure someone on here has run these. The boat in question had around 2500 hours or so on the original motors prior to rebuild so one would think these at least where ok, but let me post what the broker has said in the sales description-it now has about 240 hours on the rebuild:


    Owners Note:

    When purchasing this vessel in early 2021 we retained the services of a Caterpillar factory trained and certified technician. The engines ran great but a check of the factory records revealed that when the engines were new a factory recall to upgrade the after coolers was missed by the owner. A careful examination revealed minor pitting. As a result, the seller agreed to a COMPLETE Caterpillar rebuild of both engines. All work was done by our Caterpillar certified technician using ALL Caterpillar parts.

    Work included:

    • New upgraded after cooler assemblies
    • New factory built complete head assemblies (head, valves etc)
    • New factory built complete cylinder assemblies (sleeves, pistons, rods etc)
    In addition, while the engines were disassembled we decided to also:

    • Replace all injectors with new Caterpillar injectors
    • Have all heat exchangers removed, cleaned and reinstalled
    • Have both raw water pumps rebuilt
    • Replace hoses and belts
    The bottom line: With the exception of the after coolers, none of this work was actually required. However, new owners going forward will have peace of mind knowing that both engines are as close to factory fresh as possible. It's reasonable to expect many years of reliable service.


    Below are a few the negative comments I found from the web:

    These engines were the engines that soured the relationship between Cat and Sea Ray. They like to eat ECM's too.

    I'd walk the other way, unless you can get extremely detailed service records that prove the engines were very well cared for. There are a number of the engines still in service that are running strong, but unless you have proof they were not mistreated historically, too many variables to be comfortable with.

    CAT really, really mishandled the design flaw with the 3196 aftercooler leading to the class action and many unhappy customers. Once they "fixed" the issue and rebranded the engine to C12 it enjoyed a successful run in CAT's lineup until CAT basically gave up on the smaller displacement segment and began licensing engines from other manufacturers.

    This is the cat that had problems. HOWEVER: Cat fixed them. All you need to do is make sure that yours got the upgraded parts. Have a Cat rep run the serial numbers and the sequence numbers. Make sure you are not buying one that has the dreaded aftercooler issues.

    Run, Run away fast. Cat fixed the intercooler problem, they never addressed the issues with the block, oiling system etc. I had the displeasure of dealing with these engines when i worked for Cat.

    I always think the sound of these at manouvering revs are not unlike the 'old' 125 trains pulling out of Paddington.

    The CAT 3196's were not good motors though, vibration problems. Resale is tough
    Watch those 3196's closely, do not be afraid to check your oils twice a year looking for sodium increase.

    What temp do you run at cruise I'm about to purchase a searay 480 motor yacht with 3196's they are running at 200 at 2100 rpms diesel mechanic says they should be at 185

    Anyway, I know I can over think anything to the point of paralysis. Any real world experience with these would be appreciated. Thank you.
  2. rtrafford

    rtrafford Senior Member

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    Who was the "Caterpillar factory trained and certified technician"? You should be able to get the seller to provide historical engine history as well as database history from Cat via serial numbers, as you found on the web. You'll need to thoughtfully invest in a quality engine survey using someone very knowledgeable about the historical issues with the coolers. If the cooler issue has been properly managed, I don't see this engine as being a problem motor, in general. But invest in that engine survey and research, and pay extra attention with visual inspections and heat guns during sea trial, oil samples taken after that sea trial.
  3. Ken Bracewell

    Ken Bracewell Senior Member

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    If I read one of your other posts correctly, this boat is in South Florida? If so, Google Smith & Wick North Palm Beach. Charlie is the best Cat guy I've come across and will give you an honest opinion and a true survey.
    bayoubud likes this.
  4. Pascal

    Pascal Senior Member

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    Whatever you do.. don’t use Pantropics!

    I ve been using southshore diesel for 15 years (well not anymore now that I run MTUs). Marcello the owner is a very good surveyor too.
    Capt Ralph likes this.
  5. rtrafford

    rtrafford Senior Member

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    Agreed. Pantropic is poison. The post quoting your sources of input reads a little over the top, perhaps, with a bad singular opinion. These engines aren't time bombs, no more so than any wound-up diesel. But they're getting over 1k horsepower our of that basic block design, so if the systems have good integrity, a solid surveyor can lead you in the right direction.
  6. Capt Ralph

    Capt Ralph Senior Member

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    I don't think that was typed out loud enough. So it is worth re-typing slower and taller for the reading impaired;
    Whatever you do.. don’t use Pantropics!
  7. Capt Ralph

    Capt Ralph Senior Member

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    It's going to be the history of the engine that helps you. Here is where the oil lab reports from the last several oil changes come in.
    The owner may not have them but the better labs usually keep them on file. Our Cat SOS lab does.
  8. DOCKMASTER

    DOCKMASTER Senior Member

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    Don’t forget to consider resell challenges when time comes for you to sell the boat. You will have many perspective buyers either completely turned off by the 3196 reputation or at minimum expect price consideration. You need to be able to buy the boat right so you can sell it accordingly.
  9. mapism

    mapism Senior Member

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    I can't think of any marine engines which were ever stretched to a thousand ponies with a 12 liters displacement.
    Well, aside from Seatek, who is very close (950 hp) with a 10 liters engine, but they are in another league, sort of.
    Among "normal" pleasure rated engines, the smaller blocks I can think of which are capable of a thousand hp are the Cat 12.9 (which is actually FPT built) and the VP D13.
    IIRC, the 3196 used to be capable of up to 660 hp, and also in its latest C12 evolution, it was good for "only" 715 hp, before eventually being phased out.

    Not that this affects all other considerations made so far - just saying.
  10. rtrafford

    rtrafford Senior Member

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    Agreed, but again, these engines aren't "time bombs" with unobtainable parts or tech talent. Key here is the history of the cooler issues being caught and properly remedied prior to the introduction of salt water issues escaping those original coolers. Point made by CR was a good one, access to historical oil testing as well as to understand the hour loads and timelines of the recall repairs. If all was handled timely and proper, I wouldn't be afraid of these engines, and they're still a good brand that has a depth of tech talent to keep them in good order.

    Just don't call Pantropic. I think that was covered.
  11. rtrafford

    rtrafford Senior Member

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    Not really my point. These blocks are no more of a problem than the 3406 blocks that made up the C15-18. If you add salt water to any of them, you'll have issues. If you maintain them well and use the lubricating coolant they'll serve you for a long time. If the cooler replacement was timely, there shouldn't be any more risk here than with any other inline 6 subject to the care of the historical maintenance.
    Capt Ralph likes this.
  12. Adopo

    Adopo Member

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    Thanks guys, all good advice. I agree with the sentiment on the resale, but boy oh boy, now is the wrong time to buy if you are a value buyer. A broker called me about a 70 Outer Reef with 125 hours on rebuilds, I think it was an 09 model. It's in Stuart as well, so I thought I would look at it when I am there next week. Nope, under contract in a day.

    I like digging into the history of these boats. I found an owner in Seattle who has owned one of these for about three years. He just sent me an impressive video in 8 to 12 foot seas, with with windshields being hammered with spray. I asked him what he did not like about his GA, and he said that he didn't need the large engine and wished they were smaller.

    I also found a broker who was there when Gary Oviatt was building these. She told me a funny story about Art DeFever after I asked her about the 3196s. They were sea trialing in Tiawan with Art DeFever, and the surveyor said let's pin em. The Grand Alaskan was cursing along at 17 knots and she looked at Art and said I bet you didn't expect that. He said no, but it sure is fun!
  13. Capt Ralph

    Capt Ralph Senior Member

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    In 1974 Huckins Yacht built a near one-off. Rowinco ran Chicago - Miami for countless years.
    Rare Cat powered & around 550 shaft HP, today these engines have not been touched. They air start and run well.
    Goes back to my original thoughts, Cat measures engine life by fuel consumed better than hours. Never kick a sleeping dawg and don't string out a fair engine.
    Like the 3116/3126 POSs, I believe the 3196 in fair HP tune and use, is a very good engine.
    The oil labs will prove my points.
    If you like the boat and all surveys well, she should be considered.
  14. rtrafford

    rtrafford Senior Member

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    Rowinco seemed to always be in sight. Crossed paths often.
  15. Capt Ralph

    Capt Ralph Senior Member

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    Lived on the Huckins dock for near 10 years before retiring (again) and coming up here. Before there, lived on the old Ortega River Boat Yard fixed wood docks then rebuilt to the Ortega Landings floating docks, on & off.
    I moved Rowinco to the end of the Cedar River dock. There it sat for a few more years before the owner of Lambs purchased her (and the dock).
    She is currently under a Lambs newly built covered slip.

    We were in the Huckins slings for a couple of hours during an out of water survey near the end of October.

    JoSea has AIS, so when you find us, Please stop us and lets exchange hellos and some rum.

    Fine folks like yourself have been crossing my paths from Thunderbolt, Tip-O-Tilloo, Biscayne Bay, Boynton Inlet, Lettuce Lake, Mayport, Clifton, Ortega and Satsuma (past home sites).
    Lots of coffee or other refreshments usually get exchanged when you find us.
  16. rtrafford

    rtrafford Senior Member

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    Absolutely will coordinate.

    Huckins has always been a favorite, and spent quite a bit of time with the Purcell's at FLIBS over the years talking shop. Gave them a lot of thought before I embarked on this project. Glad I went this direction, but I'm not 100% certain that I'm done, and if not, they'll be on my mind again. Rowinco has a lot to do with that.
  17. Gerry Irons

    Gerry Irons New Member

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    Used to do the paintwork on the Rowing - both of them - Fine boats and great captain!
  18. Gerry Irons

    Gerry Irons New Member

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    ROWINCO. (Blasted spell-check)