F 150 Heritage 4WD Pickup V6-4.2L VIN 2 (2004)
Balance Shaft: Service and Repair
Engine Dynamic Balance Shaft
Removal
1. Remove the timing chain.
2. Remove the engine dynamic balance shaft.
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Remove the bolts.
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Remove the balance shaft drive gear, thrust plate and engine dynamic balance shaft as an assembly.
Installation
1. NOTE: If correctly aligned, the engine dynamic balance shaft keyway will be at 12 o'clock and the camshaft keyway will be at 6 o'clock on the
camshaft.
Turn the camshaft so that the timing mark is at 12 o'clock and install the engine dynamic balance shaft assembly into the cylinder block. Turn the
engine balance shaft driven gear so that the timing mark on the camshaft gear lines up with the timing mark on the engine balance shaft drive gear.
2. Install the bolts.
3. Install the timing chain.
