Repair Procedures: Inspection

Check the cylinder block for scores, rust and corrosion. Also check for cracks or any other defects. Replace the block if defective.
Measure the cylinder bore with a cylinder gauge at the three levels indicated, in the directions A and B.
Standard value

Cylinder bore : 93 - 93.03 mm (3.661 - 3.6625 in.)

Out-of-round and taper of cylinder bore :

Max. 0.02 mm (0.0008 in.)

Fig 1: Measuring Cylinder Bore
Courtesy of KIA MOTORS AMERICA, INC.
Check the top surface of the cylinder block for flatness. Using a precision straight edge and feeler gauge, measure the surface contacting the cylinder head gasket for warpage.
Standard value

Flatness of gasket surface :

Max. 0.03 mm (0.0012 in.)

Service limit

Flatness of gasket surface : 0.05 mm (0.0020 in.)

Fig 2: Checking Cylinder Block For Flatness
Courtesy of KIA MOTORS AMERICA, INC.