How to replace Timing Chain Cover on 2005 Ford Explorer?

Timing Chain Cover

Removal & Installation

4.6L Engine

1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
2. Drain the engine oil and coolant.
3. Remove or disconnect the following:
   
   
   Battery ground cable

   Both valve covers

   Radiator and the transmission cooler

   Drive belt

   Water pump

   CMP sensor

   Upper radiator hose bracket

   EGR vacuum regulator solenoid

   Drive belt tensioner

   Idler pulleys

   Crankshaft pulley

   Coolant hose clamps

   CKP sensor

   Oil pan to front cover bolts

   Crankshaft front oil seal

   Timing cover bolts and studs

   Front cover from the cylinder block

To install:

NOTE

If the engine front cover is not secured within four minutes, the sealant must be removed and the sealing area cleaned with metal surface cleaner.

1. Apply silicone gasket and sealant along the cylinder head to block surface and the oil pan to cylinder block surface.
2. Install the engine front cover on the front cover to cylinder block dowel and loosely install the bolts.
3. Tighten the front cover bolts and stud bolts in the sequence shown.
   
   
   

   

   Fig. Front cover bolt torque sequence-4.6L engine
4. Install a new crankshaft front oil seal.
5. Loosely install the pan-to-cover bolts, then, tighten the bolts in two stages, inner bolts first.
   
   
   Step 1: Tighten to 20 Nm (15 ft. lbs.)

   Step 2: Tighten an additional 90 degrees
6. The remainder of installation is the reverse of removal.

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