Revotron 1.2T 69 Revotron 1.2T Stage Cylinder block case main bearing bore diameter with bearing shell (mm) Crankshaft main bearing journal diameter (mm) Normal 50.026 / 50.065 50.000 / 49.980 Normal 1 49.926 / 49.965 49.900 / 49.880 Repair 1 49.786 / 49.815 49.760 / 49.730 Repair 2 49.526 / 49.565 49.500 / 49.480 Stage Connecting rod big end bore diameter with bearing shell (mm) Crank pin journal diameter (mm) Normal 40.015 - 40.051 40 -0.005 - 0.020 Maintenance Limit (Revotron 1.2T) End play of crank shaft 0.06 - 0.245 mm Fillet radius of main bearing journals 2.5 - 0.5 mm Fillet radius of crank pin journals 2.5 - 0.5 mm Width of 1st, 2nd, 3rd, 4th, and 5th main bearing journals 24.000 + 0.2 mm Width of crank pin journals 24.000 + 0.2 mm Maximum permissible cylindricity 0.005 mm Sphericity of main bearing journal 0.005 mm Maximum permissible sphericity of crank pin 0.005 mm Maximum permissible run out of 2nd, 3rd and 4th main bearing journals when supported at 1st and 5th main bearing journals 0.01 mm Maximum permissible out of parallelism between crank pin and main bearing journal axis 0.010 mm Pre-tension of main bearing shells 0.018 - 0.040 mm Hardness of crank shaft main bearing and crank pin journals 53 - 59 HRC Main bearing parent bore diameter in crank case 53.8 + 0.019 mm Maximum permissible taper of main bearing parent bore 0.005 mm Maximum permissible sphericity of main bearing parent bore 0.005 mm Crank shaft journal to main bearing clearance 0.026 / 0.085 mm
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