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  1. #1

    2011 Sea Doo RXT X Blown Engine Help

    Anyone have any thoughts or insight on the issue I'm experiencing?

    2011 RXT-X, with 74 hours runtime


    - Seasonally serviced at BRP dealers
    The unit was running, shut down, restarted and had an obvious knock in the engine. The unit was operated to get to shore approximately ľ mile at idle. Delivered to BRP dealer.

    After full engine removal and inspection by a BRP Certified Mechanic (27 years), some obvious conclusions are drawn.

    1. The connecting rod lower bearing on PTO end had spun around onto itself

    - This bearing was the only one that failed and spun internally as well as externally
    in rod. This is uncharacteristic as most will spin through the bearing but extremely rare to climb up on itself.

    2. The main crankshaft bearings are showing abrasion wear premature

    - The observation here is again only 1 failed, rule out contaminated oil as all others are in good shape. Itís the only position on the bearing that has worn through to bronze which indicates a slight miss alignment.

    3. The end play thrust bearing on the crankshaft has failed and worn into the crankcase

    - This design is
    not favourable for long, high speed application as the bearing surface is limited and only supported on 50% on the crankcase area. The support backing of the bearing is not hardened to limit the wear when bearing heat is developed as hours are put on the unit.



    Conclusion

    This unit in my professional opinion is an early production series that has internal fit and assembly issues. The client in this case needs to be treated with special allowances as the replacement parts are estimated at 60% of the complete unit value after such as short life cycle. There is no reason to use the vintage of unit as it was always maintained at dealer level with OEM lubricants and the life cycle should be the only judgment. Based on a common BRP engine life cycle of greater than 5000 hours, this unit has lasted only 1.5% of its life cycle.
    I have attached photos to support my conclusion.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  2. #2
    This is how I run a jetski shop in the desert nmpeter's Avatar
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    the engine is 7 years old, there is about a zero chance of getting any play on it from BRP.

    My take on this is that this engine was run wide open without sufficient warm up time

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  4. #3

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    Quote Originally Posted by bicmitchum View Post
    Anyone have any thoughts or insight on the issue I'm experiencing?

    2011 RXT-X, with 74 hours runtime


    Based on a common BRP engine life cycle of greater than 5000 hours, this unit has lasted only 1.5% of its life cycle.
    I don't know where you came up with this figure but it sounds wildly optimistic to me. The rough number of hours the average consumer puts on a PWC each year is 25 (based on my personal observations over 25 years of owning them). Using this figure would mean the engine is designed for 200 years of duty. That is just not possible. What you have is an engine that was designed and built at a cost that the consumer can afford. This means that mass production techniques and designs need to be utilized. It sounds like you would understand that this results in natural variation in the product. I would just have it rebuilt and continue to enjoy the ride.

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  6. #4
    carlosdelgado's Avatar
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    To me! It looks like this engine was Possibly over heated and or Ran with very little Oil or Non at all..............

  7. #5
    Quote Originally Posted by nmpeter View Post
    the engine is 7 years old, there is about a zero chance of getting any play on it from BRP.

    My take on this is that this engine was run wide open without sufficient warm up time
    Before every ride I let the engine warm up at idle speed for at least 3 minutes. I feel that's plenty of time. I also never go into sport mode until it's been run around 30 miles an hour for a few minutes. This machine is always warmed up before going at high speeds.

  8. #6
    Quote Originally Posted by pro1200 View Post
    I don't know where you came up with this figure but it sounds wildly optimistic to me. The rough number of hours the average consumer puts on a PWC each year is 25 (based on my personal observations over 25 years of owning them). Using this figure would mean the engine is designed for 200 years of duty. That is just not possible. What you have is an engine that was designed and built at a cost that the consumer can afford. This means that mass production techniques and designs need to be utilized. It sounds like you would understand that this results in natural variation in the product. I would just have it rebuilt and continue to enjoy the ride.
    The repair bill is $9,000, do you really think the average person can afford to replace an engine after so little use? Two seasons ago and it had 65 hours on it comma an impeller ring broke and it cost me $1,300 to repair. My confidence and Sea-Doo is shattered. And let's say I do rebuild the engine, why would I want to replace it with similar parts that I don't have any confidence in?

  9. #7
    Quote Originally Posted by carlosdelgado View Post
    To me! It looks like this engine was Possibly over heated and or Ran with very little Oil or Non at all..............
    I average 10 to 15 hours per season of use and the oil is changed when the machine is winterized every fall by a Certified mechanic. If the machine overheated shouldn't there have been some sort of notification or warning if it was close to doing so? When the engine failed I had only been on it for less than 10 minutes.

  10. #8
    This is how I run a jetski shop in the desert nmpeter's Avatar
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    The service guy may have started the engine without oil and/or had. Problem with the oil cap seal or overreved the engine when it was cold.

    Shame it happened but the engine price you mentioned is way out there

    Your not in Australia are you?

  11. #9
    Quote Originally Posted by nmpeter View Post
    The service guy may have started the engine without oil and/or had. Problem with the oil cap seal or overreved the engine when it was cold.

    Shame it happened but the engine price you mentioned is way out there

    Your not in Australia are you?

    $9,000 is the Canadian price for a dealer to replace the engine.

  12. #10
    Drawz02's Avatar
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    Well I had a similar issue but mine was a little more catastrophic. Looks like at some point there was enough water ingested to cause issues. I had a supercharger hose split causing h20 to get into the wrong places and ate the bearings. My engine looked exactly the same inside but the rods came out. Unfortunately the only option I had was to go through my insurance as you're right 9k for a engine on a 8k machine is ridiculous. Best of luck.

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