Removal Procedure

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

Fig 1: Identifying Balance Shaft Bolts

Courtesy of GENERAL MOTORS CORP.

Remove the radiator. Refer to Radiator Replacement .
Remove the condenser. Refer to Air Conditioning Condenser Replacement .
Remove the timing chain, sprocket and tensioner. Refer to Camshaft Timing Chain, Sprocket, and Tensioner Replacement .

NOTE: DO NOT remove the bolt holding the sprocket.

Remove the right intake balance shaft bolt (1).

Fig 2: View Of Right Intake Balance Shaft

Courtesy of GENERAL MOTORS CORP.

Remove the right intake balance shaft.

Fig 3: View Of Balance Shaft Bearing Remover & Installer

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CAUTION: Proper centering of the tool is required on the balance shaft bushing. If the tool is not properly centered then damage to the bearing bore and block will occur.

Install the J 43650 into the balance shaft hole. See Special Tools . Insert the tool with the foot parallel to the shaft.

Fig 4: View of Correct Angle of Special Tool J 43650

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When the J 43650 is inserted in the block, turn the J 43650 so that the foot becomes perpendicular to the shaft. See Special Tools .
Center the foot of the J 43650 on the balance shaft bushing. See Special Tools .
Once the J 43650 is centered on the balance shaft bushing, then insert the centering guide into the front balance shaft bore and tighten the nut with an appropriate wrench. See Special Tools .
When the J 43650 is properly installed, before removing the bushing, the end of the tool should be 116 mm (4.6 in) (a) from the block face.

If the J 43650 is less than approximately 114 mm (4.5 in) (a), recheck the tool alignment.

Fig 5: Using Special Tool J 43650 To Remove Balance Shaft Bushing

Courtesy of GENERAL MOTORS CORP.

Tighten the nut on the J 43650 until the tension releases. See Special Tools . When the tension releases, remove the J 43650 and the balance shaft bushing.