Cylinder Head Assembly
Cylinder HeadCombustion Chamber Volume 53.6 cc 3.271 cu in.)
Valve Guide Bore - Exhaust 6.000-6.020 mm (0.2362-0.2370 in.)
Valve Guide Bore - Intake 6.000-6.020 mm (0.2362-0.2370 in.)
Valve Guide Installed Height 14.050-14.550 mm (0.5531-0.5728 in.)
Valve Lifter Bore Diameter 12.008-12.030 mm (0.4728-0.4736 in.)
Valve System
Valves
Valve Face Angle 44.25°
Valve Face Runout 0.038 mm (0.0015 in.)
Valve Face Width - Exhaust 2.750 mm (0.1083 in.)
Valve Face Width - Intake 2.180 mm (0.0858 in.)
Valve Head Diameter - Exhaust 30.470-30.730 mm (1.1996-1.2098 in.)
Valve Head Diameter - Intake 36.830-37.090 mm (1.4500-1.4602 in.)
Valve Installed Height 35.23-36.69 mm (1.3870-1.4445 in.)
Valve Length - Exhaust 97.110 mm (3.8232 in.)
Valve Length - Intake 101.230 mm (3.9854 in.)
Valve Seat Angle - Seating Surface 45°
Valve Seat Angle - Relief Surface 30°
Valve Seat Angle - Undercut Surface 60°
Valve Seat Roundness- Maximum 0.025 mm (0.0010 in.)
Valve Seat Runout - Maximum 0.080 mm (0.0032 in.)
Valve Seat Width - Exhaust Seating Surface 1.400-1.800 mm (0.0551-0.0709 in.)
Valve Seat Width - Exhaust Relief Surface 0.700-0.900 mm (0.0276-0.0354 in.)
Valve Seat Width - Intake Seating Surface 1.000-1.400 mm (0.0394-0.0551 in.)
Valve Seat Width - Intake Relief Surface 0.500-0.700 mm (0.0197-0.0276 in.)
Valve Stem Diameter - Exhaust 5.945-5.965 mm (0.2341-0.2348 in.)
Valve Stem Diameter - Intake 5.955-5.975 mm (0.2344-0.2352 in.)
Valve Stem-to-Guide Clearance - Exhaust 0.035-0.075 mm (0.0014-0.0030 in.)
Valve Stem-to-Guide Clearance - Intake 0.025-0.065 mm (0.0010-0.0026 in.)
Valve Lifters - Stationary Hydraulic Lifter Assembly (SHLA)
Valve Lifter (SHLA) Diameter 12.008-12.030 mm (0.4728-0.4736 in.)
Valve Lifter (SHLA)-to-Bore Clearance 0.037-0.041 mm (0.0015-0.0016 in.)
Rocker Arms
Valve Rocker Arm Ratio 1.68 to 1
Valve Rocker Arm Roller Diameter 17.750-17.800 mm (0.6988-0.7008 in.)
Valve Springs
Valve Spring Coil Thickness 3.250 x 3.900 mm (0.1280 x 0.1535 in.)
Valve Spring Diameter - Inside Top 12.090-12.590 mm (0.4760-0.4957 in.)
Valve Spring Diameter - Outside Top 20.140 mm (0.7929 in.)
Valve Spring Diameter - Inside Bottom 17.950-18.450 mm (0.7067-0.7264 in.)
Valve Spring Diameter - Outside Bottom 26.000 mm (1.0236 in.)
Valve Spring Free Length 42.050-44.850 mm (1.6555-1.7657 in.)
Valve Spring Installed Height - Closed 35.000 mm (1.3779 in.)
Valve Spring Installed Height - Open 24.000 mm (0.9449 in.)
Valve Spring Load - Closed 247-273 N (56-61 lb)
Valve Spring Load - Open 598-662 N (134-149 lb)
Left:
Camshaft Cap Bolt 10 Nm (89 lb in.)
Camshaft Intermediate Drive Sprocket Bolt - Idler Sprocket 58 Nm (43 lb ft.)
Camshaft Position Actuator
Camshaft Bolt 58 Nm (43 lb ft.)
Cylinder Head Bolt - M8
First Pass 15 Nm (11 lb ft.)
Final Pass 75°
Right:
Left:
NEW Cylinder Head Bolt - M11
First Pass 30 Nm (22 lb ft.)
Final Pass 150°
Cylinder Head Core Hole Plug 31 Nm (23 lb ft.)
Exhaust Manifold
Bolt 20 Nm (15 lb ft.)
Heat Shield Bolt 10 Nm (89 lb in.)
Fuel Rail Bolt 10 Nm (89 lb in.)
Intake Manifold
Brace Bolt - Engine Front Cover M12 65 Nm (48 lb ft.)
Brace Bolt/Ball Stud - Intake Manifold M6 10 Nm (89 lb in.)
Sight Shield Ball Stud 9 Nm (80 lb in.)
Tuning Valve Bolt 10 Nm (89 lb in.)
Upper-to-Cylinder Head Bolt - Long 23 Nm (17 lb ft.)
Upper-to-Cylinder Head Bolt - Short 23 Nm (17 lb ft.)
Upper-to-Lower Intake Manifold Bolt 23 Nm (17 lb ft.)