GM Cutlass RWD 1970-1987 Repair Guide

Starter

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REMOVAL & INSTALLATION



See Figure 1

  1. Disconnect the negative battery cable at the battery.
  2.  
  3. Raise the car and support it with jack stands.
  4.  
  5. Remove any starter braces or shields that may be in the way. The exhaust crossover pipe may need to be removed on single exhaust models. Disconnect the wires on the starter if they can be reached.
  6.  
  7. Remove the two starter motor to engine bolts, and allow the starter to drop down, but not hang on the wires.
  8.  
  9. Remove the solenoid wires and battery cable and remove the starter.
  10.  



Click image to see an enlarged view

Fig. Fig. 1: Disconnect the wiring and the bolts, remove the starter

  1. Installation is the reverse of removal. Replace any shims that may have been removed.Torque the two mounting bolts to 25-35 ft. lbs. (34-48Nm).
  2.  

Diesel Engines
  1. Disconnect both batteries. Raise the vehicle and support it securely with jackstands.
  2.  
  3. Remove the flywheel cover.
  4.  
  5. Remove the starter heat shield upper bolt and side nut and then remove the shield.
  6.  
  7. Label the wires and then disconnect them, keeping attaching nuts in order. On the Oldsmobile 88 and 98 models, it may be necessary to work on the wiring from the front of the engine.
  8.  
  9. Support the starter from underneath. Remove the two mounting bolts that can be reached from underneath the starter, and remove it by pulling it out between the flywheel and exhaust crossover.
  10.  

To install:
  1. Support the starter and connect the wiring harness as previously marked.
  2.  
  3. Position the starter into the mounting area and install the shims (if used) and mounting bolts. Torque the mounting bolts to 35 ft. lbs. (47 Nm).
  4.  
  5. Install the flywheel cover and heat shield, if so equipped.
  6.  
  7. Connect the battery cables and start the engine to check for proper operation.
  8.  

STARTER OVERHAUL



See Figures 2 and 3

Drive Replacement
  1. After removing the starter from the engine, disconnect the field coil from the motor solenoid terminal.
  2.  
  3. Remove the starter through bolts and remove the commutator end frame and washer.
  4.  
  5. Remove the field frame and the armature assembly from the drive housing.
  6.  
  7. Slide the two-piece thrust collar off the end of the armature shaft.
  8.  
  9. Slide a standard 1 / 2 in. pipe coupling or other type of spacer (such as a deep socket) into the shaft so that the end of the coupling butts against the edge of the retainer.
  10.  
  11. Tap the end of the coupling with a hammer, driving the retainer off the snapring.
  12.  



Click image to see an enlarged view

Fig. Fig. 2: Common starter motor mounting - Buick and Chevrolet built engines

  1. Remove the snapring from the groove in the armature shaft.
  2.  
  3. Slide the retainer and clutch from the armature shaft.
  4.  
  5. To reassemble, reverse the above procedure.
  6.  
  7. During reassembly, be sure to slide the snapring, after it has been forced onto the armature shaft, past the grease groove to the snapring groove.
  8.  
  9. To reinstall the snapring retainer, use two pairs of pliers at the same time, on opposite sides of the armature shaft, and grip the retainer and thrust collar and squeeze until the retainer is forced over the snapring.
  10.  



Click image to see an enlarged view

Fig. Fig. 3: Common starter motor mounting - Oldsmobile built engines

Brush Replacement

See Figures 4, 5 and 6

  1. After removing the starter from the engine, disconnect the field coil from the motor solenoid terminal.
  2.  
  3. Remove the starter through bolts and remove the commutator end frame and washer.
  4.  
  5. Remove the field frame and the armature assembly from the drive housing.
  6.  
  7. Remove the brush holder pivot pin which positions one insulated and one grounded brush.
  8.  



Click image to see an enlarged view

Fig. Fig. 4: Disassembled view of starter motor

  1. Remove the brush springs.
  2.  
  3. Remove the brushes.
  4.  
  5. Install the brushes and springs.
  6.  
  7. Install the brush holder pivot pin, armature assembly and field frame.
  8.  
  9. Install the commutator washer and end frame.
  10.  
  11. Install the starter through bolts and reinstall the starter.
  12.  



Click image to see an enlarged view

Fig. Fig. 5: Use a piece of pipe to drive the retainer toward the snapring



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Fig. Fig. 6: Snapring installation

SOLENOID REPLACEMENT



  1. Remove the screw and washer from the motor connector strap terminal.
  2.  
  3. Remove the two screws which retain the solenoid housing to the end frame assembly.
  4.  
  5. Twist the solenoid clockwise to remove the flange key from the keyway slot in the housing.
  6.  
  7. Remove the solenoid assembly.
  8.  

To install:
  1. With the solenoid return spring installed on the plunger, position the solenoid body on the drive housing and turn it counterclockwise to engage the flange key in the keyway slot.
  2.  
  3. Install the two screws which retain the solenoid housing to the end frame.
  4.  

 
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