Camshaft

CAMSHAFT
Drive Chain
Bearings Steel Backed Babbitt
Number 4
Diametral Clearance 0.025-0.101 mm (0.001-0.004 in.)
Maximum Allowable Before Reconditioning 0.127 mm (0.005 in.)
Thrust Taken By Thrust Plate
End Play 0.127-0.304 mm (0.005-0.012 in.)
Maximum Allowable 0.304 mm (0.012 in.)

CAMSHAFT JOURNALS
Diameter
No. 1 50.724-50.755 mm (1.997-1.999 in.)
No. 2 50.317-50.368 mm (1.980-1.982 in.)
No. 3 49.936-49.987 mm (1.965-1.967 in.)
No. 4 49.530-49.581 mm (1.949-1.952 in.)

CAMSHAFT BEARINGS
Diameter
No. 1 50.80-50.82 mm (2.000-2.001 in.)
No. 2 50.39-50.41 mm (1.984-1.985 in.)
No. 3 49.60-49.63 mm (1.953-1.954 in.)
No. 4 49.53-49.58 mm (1.950-1.951 in.)

VALVE TIMING
Intake Opens (BTC) 0°
Intake Closes (ABC) 60°
Exhaust Opens (BBC) 48°
Exhaust Closes (ATC) 12°
Valve Overlap 12°
Intake Valve Duration 240°
Exhaust Valve Duration 240°

TIMING CHAIN
Number of Links 64
Pitch .375 in.
Width .750 in.

TAPPETS
Type Roller Hydraulic
Body Diameter 22.94-22.96 mm (0.9035-0.9040 in.)
Clearance to Block 0.027-0.060 mm (0.0011-0.0024 in.)
Service Tappets Available Std.
0.025 mm (0.001 in.)
0.20 mm (0.008 in.)
0.762 mm (0.030 in.)