B4000 Regular Cab 4WD V6-4.0L OHV (1997)
See: Specifications
5. Measure the crankshaft connecting rod journal diameters in two directions perpendicular to one another at each end of the connecting rod journal.
The difference in the measurements from one end to the other is the taper. Verify the taper is within the wear limit. Refer to Specifications.
See: Specifications
Crankshaft Oil Clearance Inspection/Repair
NOTE: Crankshaft main bearing journals must be within specification before checking journal clearance.
1. Remove the crankshaft main bearing caps and bearings; refer to Engine Disassembly/Assembly.
See: Service and Repair/Engine Disassembly and Assembly
2. Lay a piece of Plastigage off-center and fully across the face of each crankshaft main bearing surface.
3. Install and remove the crankshaft main bearing cap; refer to Engine Disassembly/Assembly.
See: Service and Repair/Engine Disassembly and Assembly
NOTE: Do not turn the crankshaft while doing this procedure.
4. Verify the crankshaft journal clearance. Refer to SPECIFICATIONS.
See: Specifications
1) If it is out of specification, replace as necessary.
Crankshaft End Play Inspection/Repair
1. Use the Dial Indicator With bracketry to measure crankshaft end play.