Crank Mechanism

Fig 1: Identifying Measurement Of Radial Runout Using A Dial Indicator And Magnetic Holder

Courtesy of VOLVO CARS OF NORTH AMERICA.

Crankshaft

Main bearing journal radial runout........ maximum 0.040 mm

Axial play (Measured in the engine with the intermediate section tightened)........0.08-0.19 mm

Main bearing journal radial runout........0.020-0.043 mm

Fig 2: Correct Values For Connecting Rod Bearing Journals And Main Bearing Journals

Courtesy of VOLVO CARS OF NORTH AMERICA.

Big end journals

Diameter 1........50.000 +0/-0.016 mm

Bearing recess width........26.0 0.1 mm

Maximum out-of-round........0.004 mm

Maximum taper........0.004 mm

1 The variation in diameter for each bearing journal must not exceed 0.008 mm.

Main bearing journals

Diameter 1........65.000 +0.003/-0.016 mm

Axial bearing width dimension........26.00 +0/ 0.04 mm

Maximum out-of-round........0.004 mm

Maximum taper........0.004 mm

1 The variation in diameter for each bearing journal must not exceed 0.008 mm.