Ranger 2WD V6-245 4.0L VIN X SFI (1997)
INSTALLATION
NOTE: If bearings are to be reused, they should be identified to make sure that they are installed in their original positions.
1. Remove crankshaft main bearings from cylinder block and bearing caps.
2. Remove connecting rod bearing from the connecting rod and caps.
3. Inspect all machined surfaces on the crankshaft for nicks, scratches, scores, etc., which could cause premature bearing wear. Lightly stone all such
surfaces.
4. If the crankshaft main bearing journals have been refinished to a definite undersize, install the correct undersize crankshaft main bearings.
CAUTION: Make sure crankshaft main bearings and bearing bores are clean. Foreign material under the inserts will distort the crankshaft main
bearing and cause a failure.
5. Place upper main bearing inserts in position in the bores with the tang fitted in the slot provided.
6. Install lower main bearing inserts in bearing caps.
7. Carefully lower crankshaft into place.
8. Check the clearance of each crankshaft main bearing. Select fit the crankshaft main bearings for proper clearance.
9. Apply a light coat of SAE 50 Service SO meeting Ford specification ESE-M2C39-F oil, to the journals and bearings, and rear seal surface. Install
all bearing caps.
NOTE: Make sure that the main bearing caps are installed in their original positions and orientation.
10. Lubricate the journal with engine oil and install the thrust bearing cap with the bolts finger-tight. Pry the crankshaft forward against the thrust
surface of the upper half of the bearing. Hold the crankshaft cap to the rear. This will align the thrust surfaces of both halves of the bearing. Retain
the forward pressure on the crankshaft. Tighten the cap bolts to 90-104 Nm (66-77 ft. lbs.).
11. Check crankshaft end play. End play should be 0.05-0.32 mm (0.002-0.0125 inch).
12. If end play exceeds specification, replace upper and lower thrust bearings. If the end play is less than specification, inspect thrust bearing faces for
