Crankshaft Overview

Crankshaft Overview






1 Bearing Shell

• For bearings 1, 2, 4 and 5.

• Do not interchange used bearing shells (mark them).

2 Bolt

• 65 Nm + an additional 90° (1/4) turn.

• Always replace.

• Tighten to 65 Nm to measure the radial play, but do not tighten the additional torque angle.

3 Bearing Cap

• Bearing cap 1: Belt pulley side.

• Bearing cap 3 with notches for the thrust washers.

• Retaining tabs on the bearing shells and cylinder block/bearing caps must align with one another.

4 Thrust Washer

• For bearing cap 3.

• Pay attention to the locating point.

5 Needle Bearing

• Only on vehicles with a DSG(R).

• Removing and installing, refer to => [ Crankshaft Needle Bearing ] Crankshaft Needle Bearing.

6 Crankshaft

• Axial play:

New: 0.07 to 0.17 mm

Wear limit: 0.37 mm

• Measure the radial clearance using Plastigage(R):

New: 0.03 to 0.08 mm

Wear limit: 0.17 mm

• Do not rotate the crankshaft when measuring the radial play.

• Crankshaft dimensions, refer to => [ Crankshaft Dimensions ] Crankshaft Dimensions.

7 Thrust Washer

• For the cylinder block, bearing 3.