Aerio L4-2.3L (2006)
5) Remove lower crankcase and using scale (2) on gauging plastic envelop (1), measure gauging plastic width at its widest point. If clearance exceeds
its limit, replace bearing. Always replace both upper and lower inserts as a unit.
A new standard bearing may produce proper clearance. If not, it will be necessary to regrind crankshaft journal for use of 0.25 mm undersize
bearing.
After selecting new bearing, recheck clearance.
Main Bearing Clearance
Standard: 0.0200 - 0.0380 mm (0.0008 - 0.0015 inch)
Limit: 0.0510 mm (0.0020 inch)
Selection of main bearings
STANDARD BEARING:
If bearing is in malcondition, or bearing clearance is out of specification, select a new standard bearing and install it.
1) First check journal diameter. As shown in figure, crank web No.2 has stamped numbers.
Three kinds of numbers ("1", through "9") represent journal diameters.
Journal diameter
1: 58.000 - 58.006 mm (2.2835 - 2.2837 inch)
2: 57.994 - 58.000 mm (2.2832 - 2.2835 inch)
3: 57.988 - 57.994 mm (2.2830 - 2.2832 inch)
4: 58.0030 - 58.0060 mm (2.28258 - 2.28369 inch)
5: 58.0000 - 58.0029 mm (2.28346 - 2.28357 inch)
