GM Storm/Spectrum 1985-1993 Repair Guide

Crankshaft Damper/Pulley

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REMOVAL & INSTALLATION



Spectrum

Although it may be possible to access the crankshaft damper/pulley while the engine is still in the vehicle, it may be exceedingly difficult. The manufacturer recommends that the engine be removed before attempting to replace components such as the timing belt or the crankshaft damper/gear. To remove these components, refer to the appropriate procedures later in this section.

Storm
1.6L ENGINE
  1. Disconnect the negative battery cable.
  2.  
  3. Remove the power steering belt from the crankshaft pulley.
  4.  
  5. Remove the alternator belt.
  6.  
  7. For the DOHC engine, remove the timing belt. Refer to the procedure later in this section.
  8.  
  9. Raise and support the vehicle safely, then remove the right under cover.
  10.  
  11. Remove the crankshaft pulley center bolt. For the DOHC engine, use J-8614-01, or an equivalent pulley holding fixture to prevent the crankshaft from turning.
  12.  
  13. For the SOHC engine, remove the 5 side bolts, then remove the pulley from the engine.
  14.  
  15. For the DOHC engine, use J-1859-03, or an equivalent puller to remove the pulley from the crankshaft.
  16.  

To install:
  1. Align the crankshaft key with the pulley groove, then position the pulley onto the end of the crankshaft.
  2.  
  3. Install the pulley center bolt and tighten to 87 ft. lbs. (118 Nm). For the DOHC engine, use the pulley holding fixture to prevent the crankshaft from turning. For SOHC engines, install the pulley side bolts and tighten to 17 ft. lbs. (23 Nm).
  4.  
  5. Install the right under cover, then remove the supports and carefully lower the vehicle.
  6.  
  7. For the DOHC engine, install the timing belt.
  8.  
  9. Install the alternator belt.
  10.  
  11. Install the power steering belt.
  12.  
  13. Connect the negative battery cable.
  14.  

1.8L ENGINE
  1. Disconnect the negative battery cable.
  2.  
  3. Install an adjustable engine support fixture and adapter kit in order to support the engine weight once the engine mount is removed for access. If an engine hoist is being used as an engine support, raise and support the vehicle sufficiently for both underhood and undervehicle access.
  4.  
  5. Remove the serpentine drive belt from the engine.
  6.  
  7. Remove the bolt and nut from the right engine mount bracket, then remove the through-bolt from the mount. Remove the engine mount from the vehicle.
  8.  
  9. Lower the engine using the support fixture, until the crankshaft pulley may be accessed from underneath the vehicle.
  10.  
  11. If not done already, raise and support the vehicle safely.
  12.  
  13. Remove the right splash shield.
  14.  
  15. Remove the crankshaft pulley center bolt, then remove the pulley from the vehicle.
  16.  

To install:
  1. Align the crankshaft key with the pulley groove, then position the pulley onto the end of the crankshaft.
  2.  
  3. Install the pulley center bolt and tighten to 108 ft. lbs. (147 Nm).
  4.  
  5. Install the right splash shield.
  6.  
  7. If an engine hoist is not being used as the engine support, remove the supports and lower the vehicle.
  8.  
  9. Use the engine support to align the engine with its original position.
  10.  
  11. Install the right engine mount and loosely install the through-bolt. Install and tighten the bracket nut/bolt to 30 ft. lbs. (40 Nm), then tighten the through-bolt to 50 ft. lbs. (68 Nm).
  12.  
  13. Install the serpentine drive belt.
  14.  
  15. Remove the engine support fixture. If a hoist was use to support the engine, remove the jackstands and carefully lower the vehicle.
  16.  
  17. Connect the negative battery cable.
  18.  

 
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