Mazda Workshop Service and Repair Manuals

Crankshaft: Specifications

Main Bearing Journal:

Diameter ........................................................................................................................................................  63.983 - 64.003 mm (2.5190 - 2.5198 inch)
Out Of Round Limit .....................................................................................................................................................................  0.008 mm (0.0003 inch)
Taper Limit:

 ........................................................................................................................................................................................  0.06 mm (0.0006 inch) Total
 ...............................................................................................................................................................  0.013 mm (0.0003 inch) Per 25 mm (1 inch)

Journal Runout Limit .......................................................................................................................................................................  0.05 mm (0.002 inch)
Surface Finish (RMS) ...............................................................................................................................................  0.25 Micrometers (10.0 Micro inch)

Thrust Bearing Journal:

Length .............................................................................................................................................................  25.775 - 25.825 mm (1.0148 - 1.067 inch)

Connecting Rod Journal:

Diameter ........................................................................................................................................................  53.983 - 54.003 mm (2.1253 - 2.1261 inch)
Out-Of-Round Limit ...................................................................................................................................................  0.006 mm (0.0003 inch) Maximum
Taper Limit:

 ....................................................................................................................................................................................  0.0150 mm (0.0006 inch) Total
 ...............................................................................................................................................................  0.008 mm per 25 mm (0.0003 inch per inch)

Surface Limit (RMS) ................................................................................................................................................  0.25 Micrometers (10.0 Micro inch)

Main Bearing Thrust Face:

Surface Finish (RMS):
Front and Rear ..........................................................................................................................................................  0.4 Micrometers (0.157 Micro inch)
Runout Limit ..................................................................................................................................................................................  0.025 mm (0.001 inch)

Crankshaft End Play ......................................................................................................................................................  0.10 - 0.20 mm (0.004 - 0.008 inch)