Mercedes Benz Workshop Service and Repair Manuals

Crankshaft: Specifications

Inspection Data of Crankshaft Bearing Clearance

Inspection Data Of Crankshaft Bearing Clearance

Main bearing play
Radial, when new..............................................................................................................................................................................................0.03 - 0.05 mm
Axial, when new...............................................................................................................................................................................................0.10 - 0.25 mm

Test Values of Crankshaft Bearing Cap Bolt

Dimensional Specifications

Bolt Length:

Thread Diameter ...............................................................................................................................................................................................  11 mm
Length When New .........................................................................................................................................................................................  62.8 mm
Maximum Length ...........................................................................................................................................................................................  63.8 mm

Crankshaft Bearing Journal Diameter

Standard Size ...............................................................................................................................................................................  57.950 - 57.965 mm
1st Repair Size .............................................................................................................................................................................  57.700 - 57.715 mm
2nd Repair Size ............................................................................................................................................................................  57.450 - 57.465 mm
3rd Repair Size ............................................................................................................................................................................  57.200 - 57.215 mm
4th Repair Size .............................................................................................................................................................................  56.950 - 56.965 mm

Tightening Specifications 

NOTE:  Tighten from the inside to the outside in two steps, beginning at the center.

1st step, tighten to ....................................................................................................................................................................................................  55 Nm
2nd step, Turn ..............................................................................................................................................................................  An Additional 90 - 100°

Test Values For Conrod

Test Values For Conrod

Conrod bearing radial play at crankshaft..........................................................................................................................................................0.03 - 0.05 mm

Conrod

Conrod

Conrod screw (stretch shank)
1st stage............................................................................................................................................................................................................................5 Nm
2st stage..........................................................................................................................................................................................................................25 Nm
3rd stage...................................................................................................................................................................................................................90 degrees

Inspection Data of Crankcase

Inspection Data Of Crankcase

Crankshaft bearing
Basic bore diameter......................................................................................................................................................................................62.50 - 62.52 mm
Basic bore width at fit bearing......................................................................................................................................................................23.98 - 24.00 mm
Permissible out-of-roundness and conicity of basic bore............................................................................................................................................0.02 mm

Inspection Data of Crankshaft Main Bearing Shells

Inspection Data Of Crankshaft Main Bearing Shells