Audi Workshop Service and Repair Manuals

Crankshaft - exploded view

1 -	Crankshaft

q	Measuring axial clearance → Chapter

q	Measuring radial clearance → Chapter

q	Crankshaft dimensions → Chapter

2 -	Dowel sleeve

q

2x

q	Insert in cylinder block

3 -	Retaining frame

4 -

Bolt

q

Renew

q	Tightening torque and sequence → Fig.

5 -	Thrust washer

q	Only fitted on 3rd crankshaft bearing

q	Installation position: oil grooves face outwards

q	Note location

6 -	Bearing shell

q	For retaining frame

q	Renew used bearing shells

q	Install new bearing shells for retaining frame with correct coloured markings → Fig.

7 -	Not fitted

8 -

Dowel pin

q	Check that pin is firmly seated in crankshaft

9 -	Thrust washer

q	Only fitted on 3rd crankshaft bearing

q	Installation position: oil grooves face outwards

q	Note location

10 -	Bearing shell

q	For cylinder block (with oil groove)

q	Renew used bearing shells

q	Install new bearing shells for the cylinder block with the correct coloured markings → Fig.

Retaining frame - tightening torque and sequence –  Renew bolts for retaining frame. –  Insert two dowel sleeves in cylinder block. –  Tighten bolts in the sequence -1 ... 16- in 3 stages as follows: 1.  Tighten to 30 Nm. 2.  Tighten to 50 Nm. 3.  Turn 90° further.

Allocation of crankshaft bearing shells for cylinder block Bearing shells of the correct thickness are matched to the bearings in the cylinder block at the factory. Coloured dots on the bearing shells are used to identify the bearing shell thickness. l  -Arrow-: Pulley end. The allocation of the bearing shells to the cylinder block is identified by a code letter next to the relevant bearing.

Letter on cylinder block		Colour coding of bearing
R	=	Red
G	=	Yellow
B	=	Blue

Allocation of crankshaft bearing shells for retaining frame t  Bearing shells of the correct thickness are assigned to the bearing caps at the factory. Coloured dots on the bearing shells are used to identify the bearing shell thickness. t  The correct allocation of bearing shells to crankshaft is indicated by a sequence of letters on the crankshaft web. The number „1“-arrow- preceding the sequence of letters indicates the colour code for No. 1 bearing.

Letter on crankshaft		Colour coding of bearing
R	=	Red
G	=	Yellow
B	=	Blue