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: Identifying Measurement Points

Courtesy of VOLVO CARS OF NORTH AMERICA.

Big end journals

Diameter, standard 1........50.000 +0/-0.016

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, standard 1........65.000 +0.003/-0.016 mm

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

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.

Fig 3: Identifying Connecting Rod And Bearing Shells

Courtesy of VOLVO CARS OF NORTH AMERICA.

Diameter, bearing recesses

Designation	B52x4Tx excluding B5244T3	B5244T3
Big end (mm)	53.000 -0/+0.013	53.000 -0/+0.013
Small end (mm)	21.000 +0.011/+0.005	23.000 +0.011/+0.005
Max. ovality in the bearing recesses	0.006	0.006
Length big end-small end (mm)	147	139.5