12. SERVICE STANDARDS 12.2 Engine Body 12.2.1 Cylinder head (1) Cylinder head 82E-5 – 98E-5 SERIES 12-3 Inspection item Standard Limit Reference page Combustion surface distortion mm 0.05 or less 0.15 4.2.5.(1) Valve sink mm 3D82AE (2-valve head) Intake 0.35 – 0.55 0.8 Exhaust 0.30 – 0.50 0.8 3D84E – 4D84E (2-valve head) S4D84E (4-valve) Intake 0.30 – 0.50 0.8 Exhaust 0.30 – 0.50 0.8 4D94LE (S)4D98E (4-valve head) Intake 0.36 – 0.56 0.8 Exhaust 0.35 – 0.55 0.8 Valve seat (2-valve, 4-valve) Seat angle Deg. Intake 120 — 4.2.6. Exhaust 90 — Seat correction angle deg. 40, 150 —