ENGINE 273 MPFI 135 ENGINE Stage Crank case main bearing bore Crank case main bearing dia.with bearing shell (mm) journal dia. (mm) Standard 45.02 to 45.043 44.989 to 45 CRANKSHAFT AND MAIN BEARING Stage Width of main bearing journal mm (for axial location) Standard 25.00 to 25.052 Thickness of thrust washers (standard) 2.52 mm Fillet radius of main bearing journals NA Fillet radius of crank pin journal NA Width 1st main bearing journals 25.8±0.4 Width 3rd main bearing journals 25.8 +0.2 Width crank pin journal 22 + 0.2 mm Maximum permissible circularity main bearing journal 0.0025 mm Cylindricity of main bearing journal 0.005 mm Maximum permissible cylindricity of crank pin 0.005 mm Maximum permissible run out of 2nd main bearing journals 0.02 mm with respect to 1st and 3rd journal Maximum permissible out of parallelism between crank pin & main journal axis 0.01 mm Main bearing parent bore dia. in crankcase 49.00/49.011 Maximum permissible concentricity of main bearing parent bore 0.02 mm Maximum permissible cylindricity of main bearing parent bore 0.01 mm Crankshaft journal to main bearing clearance 0.020-0.054 mm ASSEMBLY CLEARANCE : DESCRIPTION VALUE (MM) Main bearing clearance in cold condition 0.020 to 0.054 Balancer bearing clearance in cold condition 0.031 to 0.069 Crankshaft axial play 0.06 to 0.245 Balancer shaft axial play for 2nd bearing 0.1 to 0.252 Balancer shaft axial play for 3rd bearing 0.1 to 0.2 Piston projection on cylinder crankcase -0.413 to -0.715 Gap between crankshaft speed sensor and sensor wheel 0.5 to 1.4 Connecting rod bearing clearance in cold condition 0.015 to 0.058 Connecting rod axial play 0.05 to 0.35 Piston to cylinder bore clearance 0.035 to 0.050 Camshaft bearing clearance cold condition 0.027 to 0.053 Camshaft axial play 0.1 to 0.3 Tappet clearance INLET 0.15 Tappet clearance EXHAUST 0.25 Valve guide clearance INLET 0.025 to 0.051 Valve guide clearance EXHAUST 0.057 to 0.083
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