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Thread: FSM error for torque converter bolt torque

  1. #1
    Senior Member
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    Oct 2013
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    Northwest Lower Michigan
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    1989 Celebrity CL 4 door 3.1, 1989 Cutlass Cruiser 3.1
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    Default FSM error for torque converter bolt torque

    I just discovered this. Both my 88 Century manual and my 89 Ciera manual have the same error. So I wonder how many other FSMs have the same error.

    In the beginning of the automatic transaxle section under vibration test, it says to torque the bolts to 31 ft lbs. I thought it seemed a little light so I double checked the manual, then put the starter and shields back in and lowered the engine. Come to find out, everywhere else it says 46 ft lbs. But I looked at this section because that's where the illustration of the shields is.

    So that's what I'm doing when I get home, taking things back apart to get to those bolts so I can retorque them. Those are 3 very critical bolts and I don't want to just wing it.
    1989 Celebrity CL 4 door, 3.1 MPFI, 4 speed auto, summer daily driver
    1989 Cutlass Cruiser wagon, 3.1 MPFI, 4 speed auto, special summer ride
    1996 Cherokee XJ 4 door, 4.0, 5 speed, winter daily driver & towing vehicle
    1991 Tracker 2 door, 1.6, 5 speed, needs work
    Previously several Celebritys, 6000s, & 2 U-vans



  2. #2
    Senior Member 85_Ciera_Rebuild's Avatar
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    Sep 2007
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    Kansas
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    Default

    Quote Originally Posted by tlc1976 View Post
    Those are 3 very critical bolts and I don't want to just wing it.
    Unless a thread chaser is used....one could be "winging it."

    Years ago, I think it was a 1981 VW Rabbit, and clutch was torqued to flywheel to about 10 ft lbs...if exceeded, just a matter of time, and bolts would snap off.

    Regardless, being uniform across all three bolts is best.

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