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.
4. Remove the valve lifter pushrod guide.
5. Remove the engine front cover and the crankshaft position reluctor ring.





6. Remove the camshaft timing chain and sprockets.





7. Remove the balance shaft drive gear.





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





10. Remove the bolts and the balance shaft retainer.

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





11. Tap on the balance shaft using a soft-faced hammer in order to remove the balance shaft.
12. Clean all sealing surfaces.

Installation Procedure





1. Install the balance shaft.
2. Install the timing chain and the camshaft sprocket.
3. Install the crankshaft position reluctor ring and the engine front cover.
4. Install the valve lifter pushrod guide.

Important: When the timing marks on the camshaft and crankshaft sprockets 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 front cover marks for top dead center cylinder number one.

5. Install the lower intake manifold.
6. Install the A/C condenser, if equipped.
7. Install the radiator.