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Thread: Crank bolt...

  1. #1
    Join Date
    Apr 2003
    Location
    Mansfield, Texas, USA
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    2,462

    Thumbs up Crank bolt...

    What's the deal here, I see all sorts of different opinions/methods for the torque of it.

    What's the FSM say for the torque + stretch procedure? Last time I over torqued that WAY too much.
    The superior man is modest in his speech, but exceeds in his actions. - Confucius

    "He who asks of life nothing but the improvement of his own nature, is less liable than anyone else to miss and waste life."- Henri Frederic Amiel

    '01 Chev Z71 LT - '85 BMW 745i TURBO - '88 BMW 750iL - '88 Ford F150 XLT Lariat - '79 MB 240D - '79 MB 280S Euro
    '80 MB 380SE-5.0 Euro - '85 MB 300SD - '87 MB 300SDL - 1990 MB 300SEL - '91 MB 300SE - '91 MB 560SEL

    Let's face it, the red hair... makes 'em wet.


  2. #2
    Join Date
    Aug 2005
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    St. Anthony, Indiana
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  3. #3
    Join Date
    Apr 2003
    Location
    Mansfield, Texas, USA
    Posts
    2,462

    Thumbs up

    Excellent.
    The superior man is modest in his speech, but exceeds in his actions. - Confucius

    "He who asks of life nothing but the improvement of his own nature, is less liable than anyone else to miss and waste life."- Henri Frederic Amiel

    '01 Chev Z71 LT - '85 BMW 745i TURBO - '88 BMW 750iL - '88 Ford F150 XLT Lariat - '79 MB 240D - '79 MB 280S Euro
    '80 MB 380SE-5.0 Euro - '85 MB 300SD - '87 MB 300SDL - 1990 MB 300SEL - '91 MB 300SE - '91 MB 560SEL

    Let's face it, the red hair... makes 'em wet.


  4. #4
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    GM Racing LS1 ENGINE KIT INSTALLATION GUIDE
    Use old bolt and torque to 110 ft lbs, remove old bolt and tighten to 35 ft lbs and then turn the bolt 140 degrees further.

    ASE STG GEN III V8 Specialized Engine Repair Manual 16013.00-2
    Same as above

    HPBooks CHEVY LS1/LS6 PERFORMANCE by Christopher P. Endres
    With old bolt, tighten pulley onto crank to 240 ft lbs, replace with new bolt and torque to 37 ft lbs and then 140 degrees further.

  5. #5
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    beat me to it. Was looking at every resource I could find to see if they varied any.

  6. #6
    wondertruck Guest
    I always just set the torque wrench to 175 and get it as tight as I can, I've never got it to click 175 yet and never had any problems with over 20 cam installs and over 100k hardcored miles on my personal truck.

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