Removal Procedure

WARNING: This page is about a different variant/trim than selected.

NOTE:

Do NOT discard the crankshaft balancer bolt yet.

Oil Pan - Remove - Oil Pan Replacement
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Balancer Chain Tensioner Bolt (1) - Remove [2x]
Balancer Chain Tensioner (2) - Remove
Compress and lock the balancer chain tensioner using the EN-50837 Timing Chain Tensioner Retraction Tool (3).
1. Insert the EN-50837 Timing Chain Tensioner Retraction Tool into the lever arm and push in a counterclockwise direction.
2. Compress the tensioner while holding lever arm.
3. Relax the force on the lever and tensioner slightly, allowing the tensioner to extend 3 ratchet clicks, and then hold in place.
4. Pull lever clockwise using EN-50837 Timing Chain Tensioner Retraction Tool until the hole in the lever aligns with the hole in the tensioner assembly. Push the point of EN-50837 Timing Chain Tensioner Retraction Tool (3) through the lever and into the tensioner assembly.
Courtesy of GENERAL MOTORS COMPANY

Balance Chain Guide Bolt (1) - Remove [2x]
Balance Chain Guide (2) - Remove
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NOTE:
The crankshaft balancer and the ORIGINAL balancer bolt will be temporarily installed in order to counter hold the crankshaft while removing the balancer shaft driven sprocket bolt.

TEMPORARILY install the crankshaft balancer (1).
TEMPORARILY install the ORIGINAL crankshaft balancer bolt (2).
Counter hold the crankshaft balancer (1) using the EN-51577-1 Crankshaft Balancer Remover (3).
While counter holding, remove and DISCARD the balancer shaft driven sprocket bolt (4).
Remove the crankshaft balancer bolt (2), crankshaft balancer (1) and the EN-51577-1 Crankshaft Balancer Remover (3).
Courtesy of GENERAL MOTORS COMPANY

Remove the balancer shaft driven sprocket (2).
Courtesy of GENERAL MOTORS COMPANY

Balancer Shaft with Oil Pump Bolt (1) - Remove [8x]
Balancer Shaft with Oil Pump (2) - Remove