Crankshaft Balancer Replacement

Special Tools

• EN-45059-A  Angle Meter
• EN-52476  Flywheel Locking Tool

Equivalent regional tools: Special Tools

Removal Procedure

1. Fig 1: Identifying Accessory Drive Primary Belt Routing (LIH)

   Courtesy of GENERAL MOTORS COMPANY

   Accessory Drive Primary Belt (1) - Remove - Accessory Drive Primary Belt Replacement 

2. Starter - Remove - Starter Replacement (LIH)

3. Courtesy of GENERAL MOTORS COMPANY

   EN-52476  Flywheel Locking Tool (1) - Install

NOTE:

The stud must be installed to the upper hole and the bolt to the lower hole. An exchange can be lead to engine damage.

4. Bolt (2) - Install and tighten [2x]

5. Courtesy of GENERAL MOTORS COMPANY

   Crankshaft Balancer Bolt (3) - Remove and DISCARD

6. Crankshaft Balancer (1) - Remove

Installation Procedure

1. Courtesy of GENERAL MOTORS COMPANY

   NOTE:

   Check that the notch of the crankshaft balancer sits correct in the key (2).

   Crankshaft Balancer (1) - Install

2. Crankshaft Balancer Bolt (3) - Install NEW - Do NOT tighten.
CAUTION:

Fastener Caution

CAUTION:

Torque-to-Yield Fastener Warning

3. Tighten the crankshaft balancer bolt to 150 N.m (111 lb ft)
4. Tighten the crankshaft balancer bolt an additional 150 degrees, use the EN-45059  Angle Meter while fixing the crankshaft balancer.

5. Courtesy of GENERAL MOTORS COMPANY

   EN-52476  Flywheel Locking Tool - Remove

6. Starter - Install - Starter Replacement (LIH)
7. Fig 2: Identifying Accessory Drive Primary Belt Routing (LIH)

   Courtesy of GENERAL MOTORS COMPANY

   Accessory Drive Primary Belt (1) - Install - Accessory Drive Primary Belt Replacement 

8. Perform the crankshaft position variation learn. Crankshaft Position Variation Learn