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

15-40


7 -
Valve springs
Removing and installing Page 15
-77
8 -
Valve spring plate
9 -
Valve keepers
10 -
Hydraulic valve lifter
Checking Page 15
-74
Removing and installing Page 15
-77
Do not interchangeStore with cam contact surface downwardBefore installing check camshaft axial
clearance Page 15
-48

Oil contact surface
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15-74

Hydraulic valve lifters, checking


Special tools and equipment

Feeler gauge
Wood or plastic wedge

Note:
Hydraulic valve lifters cannot be adjusted or
repaired.
Irregular valve noise during starting is normal.

Test sequence

- Start engine and let run until coolant
temperature has reached approx. 80 C.

- Increase engine speed to about 2500 rpm for 2
minutes (perform road test if necessary).

Note:
If the irregular valve noises stop but recur
repeatedly during short journeys, a new oil
retention valve must be fitted. Oil retention valve
location: In oil filter bracket -Item 6 -, Page
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yp
e=re
pair&id=AUDI.B5.GE06.15.2