EM-36 ENGINE MECHANICAL (2JZ-GTE) - CYLINDER HEAD P02129 5. CLEAN CYLINDER HEAD Using a soft brush and solvent, thoroughly clean the cylinder head. P02271 P13164 Z09528 6. INSPECT FOR FLATNESS Using precision straight edge and feeler gauge, measure the surfaces contacting the cylinder block, intake and exhaust manifolds for warpage. Maximum warpage: 0.10 mm (0.0039 in.) If warpage is greater than maximum, replace the cylinder head. P02136 7. INSPECT FOR CRACKS Using a dye penetrant, check the combustion chamber, intake ports, exhaust ports and cylinder block surface for cracks. If cracked, replace the cylinder head. EM0580 8. CLEAN VALVES (a) Using a gasket scraper, chip off any carbon from the valve head. (b) Using a wire brush, thoroughly clean the valve. 1997 SUPRA (RM502U) Author : Date : 1141