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Over torquing transmission tail shaft bolt and TC to flywheel bolts 200 1990

posted by  oldguy on  Sun Nov 25 20:55 CST 2012
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last visit: Mon Sep 1 13:35 CST 2014
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Anyone know of negative consequence of over torquing..

Torque Converter to Flywheel bolts were torqued to 52 ft lbs think spec calls for 37

Transmission tail shaft center bolt was torqued to < 70 ft-lbs. Not sure what spec is on this bolt?








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    Over torquing transmission tail shaft bolt and TC to flywheel bolts 200 1990

    posted by  Flyboyk on  Mon Nov 26 01:50 CST 2012
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    last visit: Fri Oct 24 06:56 CST 2014
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    The bolts didn`t break or strip out so you`ll be fine. Just leave it be if they are still installed. Taking them out and re-torquing is almost surely going to open a can of worms








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      Over torquing transmission tail shaft bolt and TC to flywheel bolts 200 1990

      posted by  oldguy on  Mon Nov 26 22:41 CST 2012
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      Thanks - That helps. Will leave alone an hope not to have to change. Will be tough to ever pull the tranny again un bolting those TC to flywheel bolts!








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        Over torquing transmission tail shaft bolt and TC to flywheel bolts 200 1990

        uid 4846's pic
        posted by  JohnMc on  Tue Nov 27 08:59 CST 2012
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        last visit: Thu Oct 23 07:42 CST 2014
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        If the bolts yielded, then it could be an issue. They aren't made to yield, and so would likely suffer some cracking, and could fail in the future.

        however, in this case, the over torque amount wasn't that great, and it's a good sign that the bolts all nicely hit the torque value you used, even if it was too high. Once bolts start to yield (stretch) - the torque amount levels off.

        All in all, I'd agree that leaving it be is OK.
        --
        '63 PV544 rat rod, '93 Classic #1141 245 (now w/16V turbo)








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          Over torquing transmission tail shaft bolt and TC to flywheel bolts 200 1990

          posted by  oldguy on  Wed Dec 19 22:31 CST 2012
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          last visit: Mon Sep 1 13:35 CST 2014
          [RELATED]

          Thanks - Have seen torque wrench differences between my small 3/8" inch Lb and 1/2" Ft lb wrench.







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