Mechanics

LINCOLN AVIATOR AXLE PROBLEM

2004 Lincoln Aviator • 143 miles

Replace oil pan gasket
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Guest
March 29, 2013.



Oil Pan-4x4

Removal
Raise the vehicle on the hoist.

Drain the engine oil.

Remove the frame crossmember.

Remove the bolt and detach the wire harness bracket.

Support the front axle housing with a jack stand.

NOTE: Mark the bolt and bracket so that alignment can be maintained on installation.
Remove front axle housing RH mounting bolt.

NOTE: Mark the bolt and bracket so that alignment can be maintained on installation.
Remove front axle housing LH front mounting bolt.

NOTE: Mark the bolt and bracket so that alignment can be maintained on installation.
Remove front axle housing LH rear mounting bolt.

CAUTION: Use care when lowering the front axle housing, or the vacuum lines to the axle solenoid may become disconnected or damaged.
Lower the axle to allow clearance for the oil pan to be removed.

Remove the bolts and the oil pan.
CAUTION: Do not use metal scrapers, wire brushes, power abrasive discs, or other abrasive means to clean the sealing surfaces. These may cause scratches and gouges resulting in leak paths. Use a plastic scraper to clean the sealing surfaces.
Remove and discard the oil pan gasket. Clean the sealing surfaces.
Use metal surface prep and silicone remover. Allow the surfaces to dry for four minutes or until there is no sign of wetness, whichever is longest. Failure to do so can cause future oil leaks.
Installation

NOTE: If the oil pan and gasket are not secured within four minutes of sealer application, the sealant must be removed and the sealing surfaces cleaned with metal surface prep and silicone gasket remover.
Apply silicone gasket and sealant in at the front cover-to- cylinder block sealing surface.

Apply silicone gasket and sealant in at the rear seal retainer-to-cylinder block sealing surface.

Position the new oil pan gasket and the oil pan and loosely install the bolts.

Tighten the bolts in three stages in the sequence shown.
Stage 1: Tighten to 2 Nm (18 inch lbs.).
Stage 2: Tighten to 20 Nm (15 ft. Lbs.).
Stage 3: Tighten an additional 60°.

Position the front axle housing and loosely install the three bolts, aligning the bolt location marks made during removal.

Tighten the front axle housing LH rear mounting bolt.

Tighten the front axle housing LH front mounting bolt.

Tighten the front axle housing RH mounting bolt.
Remove the jack stand.

Position the wire harness bracket and install the bolt.

Install the frame crossmember.
Lower the vehicle.
Fill the engine with clean engine oil.
Start the engine and inspect for leaks.

ASEMaster6371
Apr 26, 2013.