15-88
Hydraulic lifters, checking
Notes:
Replace malfunctioning lifters completely (lifters
cannot be adjusted or repaired).
When new lifters have been installed the engine
must not be started for about 30 minutes
(otherwise valves will strike pistons).
Irregular valve noises when starting engine are
normal.
- Start engine and run until coolant temperature
reaches approx. 80 C.
- Increase engine speed to about 2500 RPM for
approx. 2 minutes: if necessary, perform road
test.
If the hydraulic lifters are still noisy, locate
malfunctioning lifters as follows:
- Remove cylinder head cover.
- Rotate crankshaft clockwise by turning securing
bolt for toothed belt sprocket until cams of lifters
to be checked are pointing upward.
Pa
ge 89 of 99 Valve
gear, servicin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE05.15.1
15-90
Valve stem seals, replacing
Cylinder head installed
- Remove ribbed belt Page 13
-1 .
- Remove toothed belt Page 13
-4 .
- Remove camshafts Page 15
-75
.
- Remove lifters and put them down with the
contact surface downwards. Ensure that lifters
are not interchanged.
- Remove spark plugs.
- Set piston of relevant cylinder to bottom dead
center (BDC).
Note:
Tight cotters can be released by tapping lightly
on the valve lever with a hammer.
Pa
ge 91 of 99 Valve
gear, servicin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE05.15.1
