Removal and Installation

REMOVAL
1. Remove oil pan (6675).
2. Remove oil pump (6600).
3. Remove oil pan baffle (6687).
4. Remove spark plugs (12405) to allow easy crankshaft rotation. See Powertrain Management.

NOTE: The crankshaft main bearings (6333) are precision fit. To check the bearing clearances or to fit a new crankshaft main bearing.

5. Replace one crankshaft main bearing at a time, leaving the other crankshaft main bearings securely fastened. Remove crankshaft main bearing cap to which new crankshaft main bearings are to be installed.

NOTE: Rotate remover tool against end of crankshaft main bearing opposite locating tang.

6. Insert Upper Main Bearing Insert Remover and Tool TOOL-6331-E or equivalent in the oil hole in the crankshaft (6303).
7. Rotate crankshaft in the direction of the engine rotation to force the crankshaft main bearing out of the cylinder block (6010).
8. Clean crankshaft journals. Inspect journals and thrust faces (crankshaft thrust main bearings (6337) for nicks, burrs or bearing pickup that would cause premature bearing wear.
9. If the crankshaft rear oil seal (6701) is to be replaced, refer to Crankshaft Rear Oil Seal/Retainer. Service and Repair

INSTALLATION

NOTE: Lightly oil all bolt and stud bolt threads before installation.

1. Fit the crankshaft main bearings. Lubricate and position the upper crankshaft main bearing on the crankshaft journal. Start the plain end into the side of the cylinder block with the locking tang slot. Line up the crankshaft main bearing tang with the slot in the cylinder block.
2. Install Upper Main Bearing Insert Tool TOOL-6331-E or equivalent in the crankshaft journal oil hole.
3. With the crankshaft main bearing and tool in position, rotate the crankshaft so that the tool catches the edge of the crankshaft main bearing, pushes into position, and seats in the cylinder block. Remove tool.
4. Install crankshaft main bearing in the crankshaft main bearing cap.
5. If crankshaft main bearing clearance is to be checked.
6. If No. 1-No.4 crankshaft main bearing was removed, lubricate the crankshaft main bearing surface with Engine Assembly Lubricant D9AZ-19579-D or equivalent meeting Ford specification ESR-M99C80-A, and install main bearing cap. Tighten retaining bolts to 75-90 Nm (55-66 ft. lbs.).





7. If the crankshaft thrust main bearings were removed, perform the following:
a. Lubricate bearing surface with Engine Assembly Lubricant D9AZ-19579-D or equivalent meeting Ford specification ESR-M99C80-A. Install the main bearing cap with the bolts finger-tight.
b. Pry crankshaft forward against the thrust surface on the upper crankshaft thrust main bearing while holding the main bearing cap to the rear. This aligns thrust rear surfaces on both halves of the crankshaft thrust main bearing.
c. While holding the crankshaft forward, tighten main bearing cap retaining bolts to 75-90 Nm (55-66 ft. lbs.).
8. Install oil pan baffle. Tighten retaining nuts to 17-21 Nm (13-15 ft. lbs.).
9. Install oil pump screen cover and tube (6622) and oil pump.
10. Install oil pan.