Cylinder Block Assembly: Specifications

Piston and cylinder dimensions





Main Bearing cap
Tightening torque 65 Nm plus 1/4 turn (90°)

Crankshaft
Axial clearance:
New 0.07 to 0.23 mm
Wear limit 0.30 mm
Check radial clearance with Plastigage
New 0.01 to 0.04 mm
Wear limit 0.15 mm

Crankshaft dimensions
(dimensions in mm)





Identification of crankshaft bearing shells for cylinder block (gradual introduction)





Color code





Connecting rod bearing cap
Tightening torque 30 Nm plus 1/4 turn (90°)

Checking cylinder bores
Difference between actual and nominal diameter not more than 0.08 mm

Gradual introduction of industrially cracked connecting rods

Bearing shell
Axial clearance
New 0.05 to 0.31 mm
Wear limit 0.37 mm
Check radial clearance with Plastigage:
New 0.01 to 0.06 mm
Wear limit 0.12 mm

Piston ring








Piston
Measure pistons approx. 10 mm from the lower edge of skirt, at 90° to the piston pin axis.
Difference between actual and nominal diameter not more than 0.04 mm

Piston with industrially cracked connecting rod

Bearing shell
Axial clearance
New 0.10 to 0.35 mm
Wear limit 0.4 mm
Check radial clearance with Plastigage:
New 0.01 to 0.05 mm
Wear limit 0.09 mm

Piston ring





Piston
Measure pistons approx. 10 mm from lower edge of skirt, at 90° to piston pin axis.
Difference between actual and nominal diameter not more than 0.04 mm

Vibration damper/belt pulley
Tightening torque 25 Nm