Timing Chain and Sprockets Installation (L32)

Tools Required 

J 45059  Torque Angle Meter

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 1: Locating Sprocket Timing Alignment Marks
Courtesy of GENERAL MOTORS CORP.
3. Install the timing chain, the crankshaft sprocket, and the camshaft sprocket.
Fig 2: Installing Timing Chain, Crankshaft Sprocket & Camshaft Sprocket (L32)
Courtesy of GENERAL MOTORS CORP.
NOTE: Refer to Special Fastener Notice in Cautions and Notices.
NOTE: Refer to Fastener Notice in Cautions and Notices.
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.

5. Install the timing chain dampener.

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

Fig 3: View Of Timing Chain Dampener
Courtesy of GENERAL MOTORS CORP.