Removal and Installation
Note: GM service manual only provides the following information for timing belt service.CRANKSHAFT PULLEY
Remove or Disconnect
1. Negative battery cable.
2. Loosen generator and slip poly-V-belt.
3. Loosen A/C compressor and slip V-belt.
4. Crankshaft pulley bolt.
Install or Connect
1. Crankshaft pulley on sprocket.
2. Torque bolt to 55 N.m. (40 lb. ft.).
3. Generator poly-V-belt.
4. A/C compressor belt.
5. Negative battery cable.
TIMING BELT COVER
Remove or Disconnect (Figure 4)
1. Negative battery cable.
2. Generator poly-V-belt.
3. A/C compressor V-belt.
4. Power steering pump and lines.
5. Unsnap covers (60, 58 and 59) (upper first).
Install or Connect
1. Snap cover (58, 59 and 60) (lower first).
2. Power steering pump and lines.
3. Generator poly-V-belt.
4. A/C compressor V-belt.
5. Negative battery cable.
CAMSHAFT SPROCKET
Tool Required: J 24420-B Timing Bolt Sprocket Remover
Remove or Disconnect (Figure 14)
1. Timing belt front covers (60) and camshaft carrier cover (16).
2. Timing belt (57).
3. Hold camshaft (67) firmly with open-end wrench.
4. Loosen sprocket bolt (61), washer (62) and sprocket (63) using J 24420-B Sprocket Remover
Install or Connect
Tools Required:
J 24420-B Timing Belt Sprocket Remover
J 36727 Timing Belt Adjuster
1. Sprocket (63), retaining bolt (61) and washer (62), with mark on sprocket lined up with mark on rear timing belt cover.
Torque to 45 N.m. (34 lbs. ft.)
2. Timing belt (57) using J 36727 Timing Belt Adjuster and J 26486-B Belt Tension Gage.
3. Timing belt front cover (60) and camshaft carrier cover (16).
CRANKSHAFT SPROCKET
Tools Required:
J 24420-B Timing Belt Sprocket Remover
J 34984 Crankshaft Sprocket Remover
Remove or Disconnect (Figures 14)
1. Timing belt front cover (60).
2. Timing belt (57).
3. Bolt, retaining washer, pulley and sprocket.
Install or Connect
1. Sprocket over key on end of crankshaft.
2. Pulley, retaining washer and attaching bolt.
Torque to 55 N.m. (40 lb. ft.).
3. Timing belt (57) using J 36727 Timing Belt Adjuster and J 26486-B Belt Tension Gage
4. Timing belt front cover (60).