TIAGO TIGOR CNG - SERVICE MANUAL

1.2L REVOTRON Bi FUEL CNG ENGINE 70 MAIN BEARING SHELL SELECTION TABLE (REVOTRON 1.2L) SELECTION ID MB BORE GRADE CRANK JOURNAL DIAMETER BEARING 1 M E Blue 2 M D Red 3 N E Red 4 N D Yellow SELECTION ID CRANK PIN BEARING CON ROD GRADE DIAMETER COLOUR THICKNESS 1 G 41.982 – 41.991 BLUE 1.490 – 1.495 45H6 2 H 41.991 – 42.000 RED 1.485 – 1.490 Maintenance Limit (REVOTRON 1.2L) End play of crank shaft 0.1 - 0.3 mm Fillet radius of main bearing journals 1.25 +0.1 mm Fillet radius of crank pin journals 1.25 +0.1 mm Width of 1st, 2 nd & 4th, and 3rd main bearing journals 24.0 + 0.2 mm Width of crank pin journals 20.7 + 0.2 mm Maximum permissible cylindricity 0.008 mm Sphericity of main bearing journal 0.005 mm Maximum permissible sphericity of crank pin 0.005 mm Maximum permissible run out of 2 nd and 3rd main bearing journals when supported at 1st and 4th main bearing journals 0.01 mm Maximum permissible out of parallelism between crank pin and main bearing journal axis 0.01 mm Pre-tension of main bearing shells 0.100 - 0.130 mm Hardness of crank shaft main bearing and crank pin journals Main bearing parent bore diameter in crank case 52 + 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 0.013 / 0.046 mm