Balance Shaft: Service and Repair

Removal Procedure

1. Remove the radiator. Refer to Radiator Replacement in Cooling System.
2. Remove the A/C condenser, if equipped. Refer to Condenser Replacement in Heating and Air Conditioning.
3. Remove the lower intake manifold. Refer to Intake Manifold Replacement (Lower).
4. Remove the valve lifter pushrod guide. Refer to Valve Lifter Replacement.
5. Remove the camshaft timing chain and sprockets. Refer to Timing Chain and Sprockets Replacement.

6. Remove the balance shaft drive gear.

7. Remove the bolt holding the balance shaft driven gear.
8. Remove the balance shaft driven gear.

9. Remove the bolts and the balance shaft retainer.

Important: The balance shaft and the balance shaft front bearing are serviced only as a package. Do not remove the balance shaft front bearing from the balance shaft.

10. Tap on the balance shaft using a soft-faced hammer in order to remove the balance shaft. Refer to Balance Shaft Removal.
11. Clean all sealing surfaces. Refer to Balance Shaft Clean and Inspect.

Installation Procedure

1. Install the balance shaft. Refer to Balance Shaft Installation.
2. Install the camshaft timing chain and the camshaft sprocket. Refer to Timing Chain and Sprockets Replacement.

3. Install the crankshaft position reluctor ring and the engine front cover. Refer to Crankshaft Position (CKP) Reluctor Ring Replacement.
4. Install the valve lifter pushrod guide. Refer to Valve Lifter Replacement.

Important: When the timing marks on the camshaft and the crankshaft sprocket are aligned, the engine is at top dead center for cylinder number four. In order to install the distributor align the crankshaft balancer marks with the engine front cover marks for top dead center cylinder number one.

5. Install the lower intake manifold. Refer to Intake Manifold Replacement (Lower).
6. Install the A/C condenser, if equipped. Refer to Condenser Replacement in Heating and Air Conditioning.
7. Install the radiator. Refer to Radiator Replacement in Cooling System.