GM Celebrity/Century/Ciera/6000 1982-1996 Repair Guide

Adjustments

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MT-125

See Figures 1, 2 and 3

  1. Disconnect the negative battery cable.
  2.  
  3. Remove the shifter boot, the console and retainer inside the car. Shift into first gear, then loosen the shift cable mounting nuts E at the transaxle D and F.
  4.  
  5. With the shift lever in first gear, position (pulled to the left and held against the stop) insert a yoke clip to hold the lever hard against the reverse lockout stop as shown in view D. Install two No. 22 drill bits, or two 5 / 32 in. (4mm) rods, into the two alignment holes in the shifter assembly to hold it in first gear. This is shown in view C.
  6.  
  7. Remove the lash from the transaxle by rotating the lever D in the direction of the arrow while tightening nut E. Tighten nut E on lever F.
  8.  



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Fig. Fig. 1: Adjusting the shift lever on an MT-125 transaxle

  1. Remove the two drill bits or pins from the shifter.
  2.  
  3. Connect the negative battery cable. Road test the vehicle to check for a good neutral gate feel during shifting. It may be necessary to fine tune the adjustment after road testing.
  4.  



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Fig. Fig. 2: Control assembly on the MT-125 transaxle



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Fig. Fig. 3: Shift cable assembly on the MT-125 transaxle

SHIFTER SHAFT WASHER



See Figures 4 and 5

If a hang-up is experienced in the 1-2 gear range and the shift cables are properly adjusted, it may be necessary to change the shift selector washer.

  1. From the end of the housing, remove the reverse inhibitor fitting spring and washer.
  2.  
  3. Position the shifter shaft into the 2nd gear position.
  4.  
  5. Measure the end of housing-to-end of shifter shaft (dimension A ).
  6.  



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Fig. Fig. 4: Shift shaft assembly



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Fig. Fig. 5: Selective washer chart

  1. On the opposite end of the shaft, apply a load of 8.8-13.3 lbs. (4-6 kg) and measure the end of housing-to-end of shifter shaft (dimension B ).
  2.  
  3. Subtract dimension B from dimension A and secure dimension C .
  4.  
  5. Using the dimension C and shifter shaft selective washer chart, select the correct shim washer to be used on the reinstallation.
  6.  

 
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