116 / 1232
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