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CONNECTING RODS DESCRIPTION SPECIFICATION Metric Standard Bearing Clearance 0.025 - 0.076 mm 0.001 - 0.003 in. Preferred 0.044 - 0.050 0.0015 - 0.0020 Side Clearance 0.25 - 0.48 mm 0.010 - 0.019 in. Piston Pin Bore Diameter .023.59 - 23.62 mm 0.9288 - 0.9298 in. Bearing Bore ( Less Bearings) 56.08 - 56.09mm 2.2080 - 2.2085 in. Total Weight (Less Bearing) 663 - 671 grams 23.39 - 23.67 oz. Length ( Center To Center) 155.52 - 155.62 mm 6.123 - 6.127 in. Twist ( MAX.) 0.002 mm per mm 0.002 in. per inch Bend (MAX.) 0.002 mm per mm 0.002 in. per inch. CRANKSHAFT DESCRIPTION SPECIFICATION Metric Standard Main Bearing Journal Diameter No. 1-6 63.489 - 63.502 mm 2.499 - 2.500 in. No. 7 63.449 - 63.487 2.498 - 2.499 in. Bearing Clearance 0.03 - 0.06 mm 0.001 - 0.0025 in. Preferred 0.051 mm 0.002 in. Out of Round (MAX) 0.013 mm 0.0005 in. Taper (MAX) 0.013 mm 0.0005 in. End Play 0.038 - 0.165 mm 0.0015 - 0.0065 in. Connecting Rod Journal Diameter 53.17 - 53.23 mm 2.0934 - 2.0955 in. CAMSHAFT DESCRIPTION SPECIFICATION Metric Standard Hydraulic Tappet Clearance Zero Lash Bore Diameter 26.02 - 26.04 mm 1.0245 - 1.0252 in. Bearing Journal Diameter No. 1 51.54 - 51.56 mm 2.029 - 2.030 in. No. 2 51.28 - 51.31 mm 2.019 - 2.020 in. No. 3 51.03 - 51.05 mm 2.009 - 2.010 in. No. 4 50.78 - 50.80 mm 1.999 - 2.000 in. Base Circle Runout (MAX) 0.033 mm 0.001 in. Valve Lift Intake 10.350 mm 0.4075 in. Exhaust 10.528 mm 0.4145 in. VALVE TIMING DESCRIPTION SPECIFICATION Intake Opens (BTDC) 12.4° Closes (ABDC) 60.9° Duration 253.3° Exhaust Opens (BBDC) 49.8° Closes (ATDC) 29.2° Duration 259.0° Valve Overlap 41.6° TJ ENGINE 4.0L 9 - 83 ENGINE 4.0L (Continued) |