16. INSPECT CAMSHAFT THRUST CLEARANCE (a) Clean and install the camshaft and bearing caps. (b) Using a dial gauge, measure the thrust clearance while moving the camshaft back and forth. Standard thrust clearance: 0.08 — 0.19 mm (0.0031 — 0.0075 in.) Maximum thrust clearance: 0.30 mm (0.0118 in.) If clearance is greater than maximum, replace the camshaft and/or cylinder head. 17. INSPECT VALVE LIFTER OIL CLEARANCE (a) Using a micrometer, measure the diameter of the valve lifter. Valve lifter diameter: 27.975 — 27.985 mm (1.1014 — 1.1018 in.) (b) Using a dial indicator, measure the inside diameter of the cylinder head bore. Lifter bore diameter: 28.000 — 28.021 mm (1.1024 — 1.1032 in.) (c) Subtract the valve lifter measurement from the cylinder head bore. Standard oil clearance: 0.015 — 0.046 mm (0.0006 — 0.0018 in.) Maximum oil clearance: 0.10 mm (0.0039 in.) If clearance is greater than maximum, replace the cylinder head and/or valve lifter. 18. INSPECT INTAKE, EXHAUST MANIFOLDS AND AIR IN-TAKE CHAMBER Using a precision straight edge and thickness gauge, check the surfaces contacting the cylinder head or intake manifold for warpage. Maximum warpage: Intake manifold 0.10 mm (0.0039in.) Exhaust manifold 7M-GE 0.75 mm (0.0295in.) 7M-GTE 0.50 mm (0.0197in.) Intake chamber 0.10 mm (0.0039in.) Intake Manifold Exhaust Manifold Air Intake Chamber EM2682 EM2683 EM2684 EM2662