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

q	Installing → Fig.

4 -

Bolt

q

Renew

q	Tightening sequence → Fig.

5 -	Thrust washer

q	Only fitted on 3rd crankshaft bearing

q	Oil groove faces outwards

q	Note location

q	Measuring axial clearance of crankshaft → Chapter

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 -	Centring sleeve for torque converter

q	For vehicles with automatic gearbox → Fig.

8 -

Dowel pin

q	Check that pin is firmly seated in crankshaft

9 -	Thrust washer

q	Only fitted on 3rd crankshaft bearing

q	Oil groove faces outwards

q	Note location

q	Measuring axial clearance of crankshaft → Chapter

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.

Installing retaining frame –  Renew bolts -1 … 16-. –  Fit both dowel sleeves into cylinder block. –  Tighten securing bolts for retaining frame in the following sequence: 1.  Tighten bolts -1 ... 16- to 30 Nm with torque wrench. 2.  Tighten bolts -1 ... 16- to 50 Nm with torque wrench. 3.  Turn bolts -1 ... 16- 90° further using a rigid wrench.

Matching crankshaft bearing shells to bearings in 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  The -arrow- points to 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

Matching crankshaft bearing shells to bearings in 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

Centring sleeve for torque converter –  On vehicles with automatic gearbox, check that centring sleeve -arrow- is fitted in rear of crankshaft. Drive in centring sleeve if necessary.