Tools Required

J 45059  Torque Angle Meter

Fig 1: Locating Sprocket Timing Alignment Marks
Courtesy of GENERAL MOTORS CORP.
1. Install the crankshaft balancer key into the crankshaft keyway.

   The crankshaft balancer key should be parallel to the crankshaft or with a slight incline.

2. Install the timing chain on the sprockets. Align the timing marks.
Fig 2: Timing Chain, Camshaft Sprocket & Crankshaft Sprocket
Courtesy of GENERAL MOTORS CORP.
3. Install the timing chain, the crankshaft sprocket, and the camshaft sprocket.
NOTE: Refer to Special Fastener Notice .
NOTE: Refer to FASTENER NOTICE .
4. Install the camshaft sprocket bolt.

   Tighten:  Tighten the camshaft sprocket bolt to 100 N.m (74 lb ft). Use J 45059  to tighten the camshaft sprocket bolt an additional 90 degrees.

Fig 3: View Of Timing Chain Dampener
Courtesy of GENERAL MOTORS CORP.
5. Install the timing chain dampener.

   Tighten:  Tighten the timing chain dampener bolt to 22 N.m (16 lb ft).