Cylinder Head Distortion

NOTE: When performing this inspection, cylinder block distortion should be also checked. Refer to [ENGINE UNIT: INSPECTION AFTER DISASSEMBLY ].

Using suitable tool, wipe off oil, scale, gasket, sealant and carbon deposits from surface of cylinder head.
CAUTION: Do not allow gasket fragments to enter engine oil or engine coolant passages.
At each of several locations on bottom surface of cylinder head, measure the distortion in six directions.

Fig 1: Checking Bottom Surface Of Cylinder Head
Courtesy of SUZUKI OF AMERICA CORP.

Limit: 0.1 mm (0.004 in)
- If it exceeds the limit, replace cylinder head.