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flywheel cracked?

Discussion in 'Peterbilt Forum' started by dactrucking, Dec 19, 2013.

  1. Dec 19, 2013 #1
    dactrucking

    dactrucking Bobtail Member

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    Dec 12, 2013
    0
    anyone ever hear of a c-12 cat flywheel cracking?
     
    dactrucking, Dec 19, 2013
    dactrucking, Dec 19, 2013
    #1
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  3. Dec 19, 2013 #2
    jameslawton

    jameslawton Light Load Member

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    May 1, 2013
    Tulsa OK
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    Yes usually caused by being put on wrong and smashing the timing pin in crank
     
    jameslawton, Dec 19, 2013
    jameslawton, Dec 19, 2013
    #2
  4. Dec 19, 2013 #3
    dactrucking

    dactrucking Bobtail Member

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    Dec 12, 2013
    0
    there isnt a dowel/timing pin on the back of the crankshaft in a c-12 there is only one in the front behind the gear the flywheel only goes on one way correctly we just dont know if someone before us tried to install it wrong
     
    dactrucking, Dec 19, 2013
    dactrucking, Dec 19, 2013
    #3
  5. Dec 19, 2013 #4
    luvtotruck

    luvtotruck Road Train Member

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    Jul 30, 2013
    Phoenix Arizona
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    How can it be installed wrong if it can only go on one way? That is crazy!
     
    luvtotruck, Dec 19, 2013
    luvtotruck, Dec 19, 2013
    #4
  7. Dec 19, 2013 #5
    dactrucking

    dactrucking Bobtail Member

    10
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    Dec 12, 2013
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    meaning that they just put it on started a bolt or two tightened them before they realized that the bolt pattern wouldn't match up
     
    dactrucking, Dec 19, 2013
    dactrucking, Dec 19, 2013
    #5
  8. Dec 19, 2013 #6
    snowwy

    snowwy Road Train Member

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    Jul 6, 2009
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    i can see damaged threads in the crank where them bolts go. if that were the case.
     
    snowwy, Dec 19, 2013
    snowwy, Dec 19, 2013
    #6
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