GM: Electra/Park Avenue/Ninety-Eight 1990-1993

Timing Chain

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Fig. Fig. 1 Timing chain and related parts-Vin C engine



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Fig. Fig. 2 Timing chain and related parts-Vins L & 1 engines



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Fig. Fig. 3 Timing mark alignment

REMOVAL & INSTALLATION



  1. Disconnect the negative battery cable. Remove the front cover.
  2.  
  3. Remove the button and spring/damper assembly from the center of the camshaft. Align the marks of the timing sprockets as they must be close together.
  4.  
  5. Remove the camshaft sprocket bolts, the sprocket and the timing chain.
  6.  
  7. Remove the crankshaft sprocket. Clean the gasket mounting surfaces.
  8.  

To install:

  1. Install the timing chain and sprockets by performing the following:
  2.  
    1. Assemble the timing chain on the camshaft sprocket and crankshaft sprockets.
    2.  
    3. Align the marks on the sprockets; they must face each other.
    4.  
    5. Slide the assembly onto the camshaft and crankshaft. Install the camshaft sprocket-to-camshaft bolts. Tighten the camshaft sprocket-to-camshaft sprocket bolts to 27-28 ft. lbs.
    6.  


(37-38 Nm) except 1992-93 vehicles. Tighten the camshaft sprocket-to-camshaft bolts on the 1992-93 vehicles to 74 ft. lbs. (100 Nm) + 105 degrees.

Align the camshaft sprocket mark with the balancer shaft sprocket mark.

  1. Install the camshaft button and spring/damper assembly. Tighten the bolt to 14 ft. lbs. (19 Nm).
  2.  
  3. Replace the front cover assembly.
  4.  
  5. Connect the negative battery cable.
  6.  
  7. Refill the cooling system. Start the engine, allow it to reach normal operating temperatures and check for leaks.
  8.  

 
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