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Service Specifications

Rocker arms and camshaft Camshaft cam height Intake Standard value 37.11 mm
Limit 36.61 mm
Exhaut Standard value 37.15 mm
Limit 36.65 mm
Cylinder head and valve Cylinder head flatness of gasket surface Standard value Less than 0.03 mm
Limit 0.2 mm
Cylinder head grinding limit of gasket surface Limit 0.2 mm
Total resurfacing depth of both cylinder head and cylinder block
Cylinder head overall height Standard value 119.9 - 120.1 mm
Cylinder head bolt shank length Limit 96.4 mm
Valve stem O.D Standard value 6.0 mm
Valve stem-to-guide clearance Intake Standard value 0.02 - 0.05 mm
Limit 0.10 mm
Exhaust Standard value 0.05 - 0.09 mm
Limit 0.15 mm
Valve face angle Standard value 45 deg - 45.5 deg
Valve margin Intake Standard value 1.0 mm
Limit 0.5 mm
Exhaust Standard value 1.3 mm
Limit 0.8 mm
Valve stem projection Intake Standard value 49.30 mm
Limit 49.80 mm
Exhaust Standard value 49.35 mm
Limit 49.85 mm
Overall valve length Intake Standard value 110.15 mm
Limit 109.65 mm
Exhaust Standard value 113.70 mm
Limit 113.20 mm
Valve spring free height Standard value 50.9 mm
Limit 49.9 mm
Valve spring load/installed height Standard value 216 N / 44.2 mm
Valve spring squareness Standard value Maximum 2 deg
Limit 4 deg
Valve seat contact width Standard value 0.9 - 1.3 mm
Valve guide I.D. Standard value 6.0 mm
Valve guide projection Standard value 14.0 mm
Oil pump and oil pan Oil pump tip clearance Standard value 0.06 - 0.18 mm
Oil pump side clearance Standard value 0.10 - 0.18 mm
Valve pump body clearance Standard value 0.10 - 0.18 mm
Limit 0.35 mm
Piston and connecting rod Piston O.D. Standard value 81.0 mm
Piston ring side clearance No.1 Standard value 0.03 - 0.07 mm
Limit 0.1 mm
No.2 Standard value 0.02 - 0.06 mm
Limit 0.1 mm
Piston ring end gap No.1 Standard value 0.25 - 0.40 mm
Limit 0.8 mm
No.2 Standard value 0.40 - 0.55 mm
Limit 0.8 mm
Oil ring Standard value 0.20 - 0.60 mm
Limit 1.0 mm
Piston pin O.D. Standard value 19.0 mm
Piston pin press-in load [at room temperature] Standard value 4900 - 14700 N
Crankshaft pin oil clearance Standard value 0.02 - 0.05 mm
Limit 0.1 mm
Connecting rod big end side clearance Standard value 0.10 - 0.25 mm
Limit 0.4 mm
Crankshaft and cylinder block Crankshaft end play Standard value 0.05 - 0.25 mm
Limit 0.4 mm
Crankshaft journal O.D. Standard value 50 mm
Crankshaft pin O.D. Standard value 45 mm
Crankshaft journal oil clearance Standard value 0.02 - 0.04 mm
Limit 0.1 mm
Cylinder block gasket surface flatness Standard value 0.05 mm
Limit 0.1 mm
Cylinder block gasket surface grinding limit Limit 0.2 mm
Cylinder block overall height Standard value 263.5 mm
Cylinder bore I.D. Standard value 81.0 mm
Piston-to-cylinder clearance Standard value 0.02 - 0.04 mm
Cylinder bore cylindricity Standard value 0.01 mm or less
Bearing cap bolt shank length Limit 71.1 mm