Crankshaft Pulley Installation

Special Tools

• EN-956-1  Extension
• EN-45059  Angle Meter
• EN-49979  Crankshaft Holder
• EN-49979-100  Crankshaft Holder Pins

For equivalent regional tools, refer to Special Tools .

Fig 1: Crankshaft Pulley And Bolts
Courtesy of GENERAL MOTORS COMPANY
1. Install the crankshaft pulley (1).
2. Pre-install the 4 NEW crankshaft pulley bolts (2).
Fig 2: Crankshaft Holder, Pins, Extension And Crankshaft Pulley
Courtesy of GENERAL MOTORS COMPANY
3. Install the EN-49979  holder (1) in compound with the EN-49979-100  pins and the EN-956-1  extension (2) to counterhold the crankshaft pulley (3).
Fig 3: Crankshaft Pulley And Bolts
Courtesy of GENERAL MOTORS COMPANY
CAUTION:

Refer to Fastener Caution .

CAUTION:

Refer to Torque-to-Yield Fastener Caution .

4. Install the 4 crankshaft pulley bolts (2) and tighten in first pass to 50 N.m (37 lb ft).
5. Tighten in final pass to 45 degrees, use the EN-45059  meter.