Kia Cerato 2009 Service Manual page 85

should be replaced.
Allowable bend of connecting rod :
0.05mm / 100mm (0.0020in / 3.94in ) or less
Allowable twist of connecting rod :
0.1mm / 100mm (0.0039in / 3.94in) or less
CRANKSHAFT
1. Check the crankshaft bearing oil clearance.
(1) To check main bearing-to-journal oil clearance, remove the bed plate and lower bearings.
(2) Clean each main journal and lower bearing with a clean shop towel.
(3) Place one strip of plastigage across each main journal.
(4) Reinstall the lower bearings and bed plate, then tighten the bolts.
Tightening torque :
Long bolts : 22.6~26.5Nm (2.3~2.7kgf.m, 16.6~19.5lb-ft) + 90~94°
Short bolts : 32.4~36.3N.m(3.3~3.7kgf.m, 23.9~26.8lbf.ft)
Do not turn the crankshaft.
(5) Remove the bed plate and lower bearing again, and measure the widest part of the plastigage.
Standard oil clearance :
0.024 ~ 0.042mm (0.0009 ~ 0.0017in)
(6) If the plastigage measures too wide or too narrow, remove the upper and lower bearing and then install
a new bearings with the same color mark.
Recheck the oil clearance.
Do not file, shim, or scrape the bearings or the cap to adjust clearance.
(7) If the plastigage shows the clearance is still incorrect, try the next larger or smaller bearing.
Recheck the oil clearance.