General Specifications

Cylinder Head and Valve Train
Valve arrangement (front to rear) - LH I-E-I-I-E-I-I-E-I-I-E-I
Valve arrangement (front to rear) - RH I-E-I-I-E-I-I-E-I-I-E-I
Valve guide bore diameter 6.015-6.044 mm (0.237-0.238 inch)
Valve stem diameter - intake 5.975-5.995 mm (0.235-0.236 inch)
Valve stem diameter - exhaust 5.95-5.97 mm (0.234-0.235 inch)
Valve stem-to-guide clearance - intake 0.020-0.045 mm (0.001-0.002 inch)
Valve stem-to-guide clearance - exhaust 0.069-0.094 mm (0.003-0.004 inch)
Valve head diameter - intake 33.62-33.98 mm (1.324-1.338 inch)
Valve head diameter - exhaust 37.32-37.68 mm (1.469-1.483 inch)
Valve face runout 0.05 mm (0.002 inch)
Valve face angle 45.5 degrees
Valve seat width - intake 1.2-1.4 mm (0.047-0.055 inch)
Valve seat width - exhaust 1.4-1.6 mm (0.055-0.063 inch)
Valve seat angle 44.5-45.0 degrees
Valve spring free length 55.7 mm (2.19 inch)
Valve spring compression pressure 350 N (79 lbs.) ± 17.5 N (4 lbs.) @ 42.04 mm (1.66 inch)
Valve spring installed height 42.04 mm (1.66 inch)
Valve spring installed pressure 350 N (79 lbs.) ± 17.5 N (4 lbs.) @ 42.04 mm (1.66 inch)
Roller follower ratio
Hydraulic Lash Adjuster
Diameter 15.988-16.000 mm (0.6294-0.6299 inch)
Clearance-to-bore 0.018-0.069 mm (0.0007-0.0027 inch)
Combustion chamber volume 48.1-51.1 cc (2.94-3.12 cu inch)
Roller follower ratio
Hydraulic Lash Adjuster
Diameter 15.988-16.000 mm (0.6294-0.6299 inch)
Clearance-to-bore 0.018-0.069 mm (0.0007-0.0027 inch)
Service limit
Hydraulic leakdown rate a 5-25 seconds
Collapsed lash adjuster gap 0.45-0.85 mm (0.017-0.033 inch)
Camshaft
Theoretical valve lift @ 0 lash - intake 11.1 mm (0.437 inch)
Theoretical valve lift @ 0 lash - exhaust 11.0 mm (0.433 inch)
Lobe lift - intake 5.520 mm (0.217 inch)
Lobe lift - exhaust 5.506 mm (0.217 inch)
Allowable lobe lift loss 0.127 mm (0.005 inch)
Journal diameter 28.607-28.633 mm (1.126-1.127 inch)
Camshaft journal bore inside diameter 28.657-28.682 mm (1.128-1.129 inch)
Camshaft journal-to-bearing clearance 0.024-0.075 mm (0.001-0.003 inch)
Runout 0.03 mm (0.001 inch)
End play 0.075-0.185 mm (0.003-0.007 inch)

a The line required for the plunger to leak down 1.6 mm (0.062 inch) of travel with 222 N force and leak-down fluid in the lash adjuster.