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CAMSHAFT DESCRIPTION SPECIFICATION Metric Standard Bearing Journal Diameter No. 1 58.2 mm 2.29 in. No. 2 57.8 mm 2.27 in. No. 3 57.4 mm 2.26 in. No. 4 57.0 mm 2.24 in. No. 5 43.633 mm 1.72 in. Bearing To Journal Clearance Standard No. 1 0.040 - 0.080 mm .0015 - .003 in. No. 2 0.050 -0.090 mm 0.0019 - .0035 in. No. 3 0.040 - 0.080 mm .0015 - .003 in. No. 4 0.050 - 0.090 mm 0.0019 - .0035 in. No. 5 0.040 - 0.080 mm .0015 - .003 in. Camshaft End Play .080 - 0.290mm 0.0031 - 0.0114 in. VALVE TIMING @ SAE 0.006” DESCRIPTION SPECIFICATION Intake Opens (BTDC) 15.0° Closes (ATDC) 268.0° Duration 283.0° Exhaust Opens (BTDC) 251° Closes (ATDC) 35° Duration 286.0° Valve Overlap 50° CYLINDER HEAD DESCRIPTION SPECIFICATION Valve Seat Angle 44.5° - 45.0° Valve Seat Runout (MAX) 0.05 mm (0.0019 in.) Valve Seat Width (Finish) Intake 1.18 - 1.62 mm (0.0464 - 0.0637 in.) Exhaust 1.48 - 1.92 mm (0.0582 - 0.0755 in.) Guide Bore Diameter (Std.) 7.975 - 8.00 mm (0.313 - 0.314 in.) 9 - 2476 ENGINE - 6.1L SERVICE INFORMATION LX |