Crankshaft Balancer Installation

WARNING: This page is about a different car, the 2008 Pontiac G5 and 2008 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

Special Tools

EN-48585 Crankshaft Balancer Guide
J 38122-A Crankshaft Balancer Holder. See Special Tools .
J 45059 Angle Meter

Fig 1: View Of Crankshaft Balancer

Courtesy of GENERAL MOTORS CORP.

NOTE: Ensure both components are aligned correctly or serious engine damage will occur.

Install the EN-48585 into the end of the crankshaft.
Install the balancer onto the EN-48585 . Use care to properly align the keyway and flats on the balancer with the oil pump drive.

Fig 2: View Of Harmonic Balancer Holder J38122-A

Courtesy of GENERAL MOTORS CORP.

Install the J 38122-A . See Special Tools .

NOTE: Refer to FASTENER NOTICE .

IMPORTANT: Always install a new crankshaft balancer retaining bolt and washer.

Install a new retaining bolt and washer. Use the J 38122-A and a breaker bar to prevent the crankshaft from rotating when tightening the bolt. See Special Tools .
Tighten: Tighten the bolt to 100 N.m (74 lb ft) plus 125 degrees using the J 45059 .