lock AUDI A4 1998 B5 / 1.G AWM Engine Valve Gear Service Workshop Manual

15-51

Removing

Cylinder head installed
Lock carrier must be in service position
Page 13
-1 .

- Remove engine cover -arrows-.
- Remove upper toothed belt guard Page 13
-35
.
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15-53

- Loosen camshaft sprocket (counter hold with
3036).

- Remove camshaft sprocket.

- To guide oil seal extractor, thread securing bolt for camshaft sprocket -
arrow- into camshaft as far as it will go by hand.
- Adjust inner part of oil seal extractor 2085 two turns (approx. 3 mm)
from outer part and lock in position with knurled screw.

- Lubricate threaded head of oil seal extractor 2085, place it in position
and, exerting firm pressure, screw it into oil seal as far as possible.
- Loosen knurled screw and turn inner part of extractor against camshaft
until oil seal has been extracted.
- Clamp flats of oil seal extractor in vice. Remove oil seal with pliers.
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15-58

Removing

Cylinder head installed
Lock carrier must be in service position
Page 13
-1 .

- Remove engine cover -arrows-.
- Remove upper toothed belt guard Page 13
-35
.

- Disconnect connector from camshaft position sensor -arrow-.
- Remove sensor housing.
- Remove sensor rotor and washer.
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15-59


- Insert camshaft sprocket bolt 2085/1 by hand into camshaft as far as it
will go.
- Adjust inner part of oil seal extractor 2085 two turns (approx. 3 mm)
from outer part and lock in position with knurled screw.

- Lubricate threaded head of oil seal extractor 2085, place it in position
and, exerting firm pressure, screw it into oil seal as far as possible.
- Loosen knurled screw and turn inner part of extractor against camshaft
until oil seal has been extracted.
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15-61

Installing sealing ring with spring:

Note:
Do not oil sealing lip of oil seal.

All models: - Place guide sleeve 3241/2 onto camshaft journal.
- Slide oil seal over guide sleeve.

Tightening torques - Press in sealing ring with pressure sleeve 3241/1 as far as it will go. To
do this use bolt 3241/3.
- Install camshaft position sensor Page 15
-46
.
- Install toothed belt guard (upper section).
- Install lock carrier Page 13
-1 .
Component

Nm
Camshaft position sensor rotor to camshaft 25
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15-63

Removing

Cylinder head installed
Lock carrier must be in service position
Page 13
-1 .

- Remove engine cover -arrows-.
- Remove combination valve for secondary air inlet Page 26
-64
.

- Disconnect connector -arrow- from camshaft adjuster.
- Remove upper toothed belt guard Page 13
-35
.
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15-75
If the hydraulic lifters are still noisy, locate faulty
lifters as follows:

- Remove cylinder head cover Page 15
-15
.

- Rotate crankshaft until cams of lifters to be
checked are pointing upward:

- Vehicles with manual gearbox: push vehicle
forward with 4th gear engaged and ignition
switched off.

- Vehicles with automatic gearbox: remove
sound insulation and turn crankshaft clockwise
by applying wrench to central bolt on
crankshaft sprocket.

- Determine play between cam and lifter.

- Press down lifter with a wooden or plastic wedge. If an 0.20 mm feeler
gauge can be inserted between camshaft and lifter, replace lifter.
- Replacing lifter Removing and installing camshafts and camshaft
adjuster, Page 15
-62
.
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