AUDI A6 1997 C5 / 2.G AEB ATW Engines Engine Assembly Owner's Manual

13-19

Installing
Installation is the reverse of removal, noting the
following:

- Install V-belt and loosely bolt both halves of belt
pulley to coolant pump.

- Slowly bring belt pulley halves together by
turning coolant pump and tightening bolts for
belt pulley in stages.

While tightening pulley halves, the V-belt must
move outward and sit correctly on belt pulley.

- Tighten bolts to 25 Nm (18 ft lb).

Note:
Adjustment of V-belt tension for coolant pump is
not possible.

- Install ribbed belt and release tension on
tensioner.

- Start engine and check running of belt.

- Check tightening torque of bolts for coolant
pump belt pulley.
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13-20

Bearing for viscous fan in mounting
bracket, removing and installing


Lock carrier in service position Page 13
-1

Special tools and equipment

Hex nut from 3301 assembly tool
Extractor pipe from 3350 installation device
3367 press out tool for viscous clutch fan
bearing bushing

Removing

- Remove ribbed belt Page 13
-15
.

- Remove viscous fan (together with belt pulley)
Page 13
-14
, Fig. 1
.

- Remove circlip (arrow) from bearing bushing.
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13-21


Installing
Installation is the reverse of removal, noting the following: - Pull bearing from bracket using hex nut from 3301 assembly tool, bolt
from 3367 press out tool for viscous fan bearing bushing and 3350
extractor pipe.

- Press in bearing using 3367 press out tool for viscous fan and hex nut
from 3301 assembly tool.
- Using circlip pliers, install circlip in viscous fan bracket.
- Install viscous fan Page 13
-14
, Fig. 1
.
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13-22

Mounting bracket for generator, power
steering pump and viscous fan,
removing and installing


Lock carrier in service position Page 13
-1

Removing

CAUTION!

Before disconnecting the battery, determine
the correct coding for the anti-theft radio.

Note:
Ribbed belt for A/C remains installed.
Ribbed belt, removing Page 13
-15
. - Switch ignition off and disconnect battery Ground (GND) strap.
- Remove ribbed belt and ribbed belt tensioner Page 13
-18
.
- Remove belt pulley for power steering pump.
- Unbolt power steering pump from mounting bracket for generator,
power steering pump and viscous fan and tie to side.
All lines remain connected
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13-23

- Follow procedures for "Coolant pump, removing
and installing" Page 19
-13
.

Note:
Coolant pump is bolted to mounting bracket for
generator, power steering pump and viscous fan.

Installing
Installation is the reverse of removal, noting the
following:

- Replace O-ring for coolant pump (to guard
against leakage).

Tightening torques

Component

Tightening
torque
Belt pulley to power steering
pump 25 Nm (18 ft
lb)
Power steering pump to mounting
bracket for generator, power
steering pump and viscous fan
25 Nm (18 ft
lb)
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13-24


Toothed belt, overview

CAUTION!
Before removing toothed belt, note direction of
rotation with chalk or felt-tip marker. Reversing
the direction of rotation of a used belt can
destroy the belt. When installing the ribbed belt,
make sure it is seated correctly on the pulley.
1 -
Bolt
10 Nm (7 ft lb)
2 -
Bolt 10 Nm (7 ft lb)
3 -
Bolt 10 Nm (7 ft lb)
4 -
Bolt 20 Nm (15 ft lb)
5 -
Upper toothed belt cover To remove, unbolt ribbed belt tensionerWhen installing, carefully hook into lower
toothed belt cover
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13-25


6 -
Toothed belt
Before removing, note direction of rotation
using chalk or felt-tip marker Check for wearRemoving Page 13
-29
Installing (adjusting valve timing) Page 13
-32

7 -
Bolt for tensioner
25 Nm (18 ft lb)
8 -
Nut 10 Nm (7 ft lb)
9 -
Washer
10 -
Bolt 65 Nm (48 ft lb)Use 3036 retainer for loosening and
tightening
11 -
Washer
12 -
Camshaft gear For exhaust camshaftFor removing and installing, remove
toothed belt Page 13
-29

Installation position Fig. 1
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13 -
Tensioner
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13-26


14 -
Connecting bolt
25 Nm (18 ft lb)For tensioner
15 -
Rear toothed belt cover
16 -
Bolt 20 Nm (15 ft lb)
17 -
Intermediate shaft gear
18 -
Washer
19 -
Toothed belt gear for crankshaft Contact surface between toothed belt gear
and crankshaft must be free of oil Installation only possible in one position
20 -
Bolt for toothed belt gear for crankshaft Always replace90 Nm (66 ft lb) + additional 1/4 turn (90 )Do not oilUse 3099 retainer for loosening or
tightening Attach 3099 retainer Page 13
-39
To secure retainer, remove torque support
bracket Page 17
-2 , item 5
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13-27


21 -
Bolt
65 Nm (48 ft lb)Use 3036 retainer when loosening or
tightening
22 -
Toothed belt tensioner
23 -
Bolt 10 Nm (7 ft lb)
24 -
Idler pulley
25 -
Bolt 25 Nm (18 ft lb)
26 -
Lower toothed belt cover To remove, remove vibration damper
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