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  1. #1

    Question Question on Carbon Seals

    I was flushing the ski after a day out and had a quick question on these carbon seals. When I was flushing my ski and my neighbor got be distracted in conversation from what I was doing and I accidentally had my GTR run with a hose for almost 5 minutes (not my normal flush time). My question is are these carbon seals at least a bit resilient to simple mistakes maybe once or twice in their lifetime. Has me worried when I went to the Internet and all I find is DO NOT EXCEED 2 MINUTES in caps everywhere.This was not my usual flush time I just need some reassurance that exceeding that time maybe once isn't bad. I didn't feel or hear anything wrong just got me all stressed that I messed up.


  2. #2
    JT jpt7779's Avatar
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    There are 2 issues with running on the hose for too long. 1. The carbon seal gets hot and may be subject to premature wear. It will show up as a big black ring of dust on the hull below the seal. 2. The ride plate will get very hot and the engine temp may get too hot causing all kinds of problems.

    Most likely you caused no damage but it is not a good idea to do this repeatedly for extended periods.

  3. #3
    connorrxp's Avatar
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    Go take a quick run with the seat off and see if water comes in around the carbon seal, better yet check on the trailer with ski running before you take it out, I wouldn't be too worried about over heating you get an alarm for that, it's not like you held the thing at wot for 2 minutes like some people on youtube trying to make flames come out the back..

  4. #4
    Sanfish's Avatar
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    All I can say is when I run the ski on the hose for 30 seconds, I will almost burn my finger if I reach around and touch the metal hat. Because of this, I've only ran on hose 3 or 5 times ever (30-seconds of less) and avoid it like the plague.

    I've always wanted to permanently mount a car windshield spray nozzle (pointed at the hat/seal) in the hull Y'd off the flush system. My Yamaha, I could run it on hose till tank ran out of gas.

    BTW: I agree with what connorrxp said...run around with seat off and if you can, while running carefully put hand under seal area and feel for water. At the very least, on next several ride, keep taking seat off and look inside.

  5. #5
    Thanks for all the responses. I think it's fine. No ring of black dust around the seal on the hull that I can see. I usually only flush for about 30 seconds. Had me panic. I hate having to learn like that.

  6. #6
    Greggpru's Avatar
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    Did the hat turn a different color? If so I would change it out , I had one let go in the middle of the lake and almost turned my ski into a submarine. Also loosen the Bellow and turn it to inspect the ring and use a flashlight to get a good look at it, if you notice and chips or hairline cracks replace it.Click image for larger version. 

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ID:	405729you don't want this to happen.

  7. #7
    connorrxp's Avatar
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    Click image for larger version. 

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    Color of mine I just pulled out 100hrs. I'd say yours did change color like it got real hot, glad to hear your ski didn't sink

  8. #8
    bwhitsonjr's Avatar
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    Anyone found a good thread or video that has a good step-by-step instruction for pulling the impeller, driveshaft, and carbon ring?

  9. #9
    canuck's Avatar
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    Quote Originally Posted by bwhitsonjr View Post
    Anyone found a good thread or video that has a good step-by-step instruction for pulling the impeller, driveshaft, and carbon ring?
    These might help.




  10. #10
    bwhitsonjr's Avatar
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    Thanks for pointing this out! These guys are great! I can't believe I missed this video they did?

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