D21 Hardbody XE 4WD L4-2389cc 2.4L SOHC MFI (KA24E) (1997)
Crankshaft Main Bearing: Testing and Inspection
CLEARANCE
Use Method A or Method B. Method A is preferred because it is more accurate.
Method A: Using Bore Gauge And Micrometer
1. Set main bearings in their proper positions on cylinder block and main bearing cap.
2. Install main bearing cap to cylinder block and torque to specifications all the bolts in correct order in two or three stages.
3. Measure inner diameter "A" of each main bearing.
4. Measure outer diameter "Dm" of each crankshaft main journal.
5. Calculate main bearing clearance. Main bearing clearance = A - Dm. The standard value is 0.012 - 0.030 mm (0.0005 - 0.0012 inch). The limit is
0.065 mm (0.0026 inch). If it exceeds the limit, replace the bearing.
-
If clearance cannot be adjusted within the standard of any bearing, grind crankshaft journal and use undersized bearing.
-
When grinding the crankshaft journal, confirm that dimension "L" (fillet roll) is more than the specified limit. "L" is 0.1 mm (0.004 inch).