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  1. #1
    RC Competitor
    Join Date
    Jun 2013
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    UK
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    54

    New trx bearing failure

    Hi all

    Bought a 3.3 trx back in May when I was on holiday in the states. Followed run in procedure and have only put 12 tanks thru when tonight, my truck died and seemed difficult to turn over on ez start, took home to investigate. Turns out front inner crank bearing has failed.

    Should it have failed so quick and does engine come with any warranty even though I'm in the UK???

  2. #2
    RC Qualifier
    Join Date
    Dec 2011
    Location
    Woodward, OK
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    468
    I would contact traxxas customer support, and see what they say. You could always replace the bearings, and go on. You can get the bearings from avid pretty reasonable, about half the cost of traxxas ones. I have yet to have an avid fail in an engine. I also had a new 3.3 fail. My problem was about 6 tanks after break in, I could not keep the temps down for nothing. Finally tore it down, and same thing inner bearing fell apart.
    T-maxx 3.3
    Rusty 2.5r
    Summit VXL
    Nitro 4-tec

  3. #3
    RC Competitor
    Join Date
    Jun 2013
    Location
    UK
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    54
    Think I might be easier to buy a new engine, parts in uk are a bit more expensive than the US. Pretty peeved about it really

  4. #4
    RC Racer
    Join Date
    Mar 2013
    Location
    Australia, vic
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    137
    I can't see a new engine being cheaper than one new bearing.


    Sent from my GT-I9300T using Tapatalk 2

  5. #5
    RC Competitor
    Join Date
    Jun 2013
    Location
    UK
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    54
    On closer inspection, the top of the piston is pitted, the bottom of the cooling head is too, guess this is where the bearing gave way. New piston and sleeve is 65, bearings are 25. Plus postage. It would be another 40 odd quid for a new engine.

  6. #6
    RC Qualifier
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    Jan 2013
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    Gurley, Alabama
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    766
    That's always the biggest danger with a failed bearing, shrapnel.

  7. #7
    RC Racer
    Join Date
    Mar 2013
    Location
    Australia, vic
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    137
    Try dollarhobbyz.com

    Sent from my GT-I9300T using Tapatalk 2

  8. #8
    RC Turnbuckle Jr. Wolfslash16's Avatar
    Join Date
    Mar 2012
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    Riverton Utah
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    4,356
    Try dollarhobbyz.com
    Here's a link.

    http://www.dollarhobbyz.com/servlet/StoreFront
    Sl2sh Slayer Summit Sl4sh Teton/Rally T-Maxx Pnde

  9. #9
    RC Racer
    Join Date
    Mar 2013
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    Australia, vic
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    Quote Originally Posted by Wolfslash16 View Post
    Lol thanks

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  10. #10
    RC Turnbuckle Jr. Nitronaught's Avatar
    Join Date
    Oct 2005
    Location
    South Florida
    Posts
    18,537
    Quote Originally Posted by Mark Ball View Post
    That's always the biggest danger with a failed bearing, shrapnel.
    I'd question the coloring of the top of the piston and the exhaust port as well as the head...

    It's also a symptom of being so lean you get detonation which also leaves nice ice pick like holes in the piston and head.
    Robin Williams
    He will be greatly missed...

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