sensor AUDI A4 1998 B5 / 1.G AEB ATW Engines Valvetrain Servicing Workshop Manual

15-38


23 -
Intake valve
Do not reface by grinding; only hand
lapping is allowed Valve dimensions Page 15
-39
, Fig. 1
Checking valve guides Page 15
-66
Refacing valve seats Page 15
-71
24 -
Oil seal
For intake camshaftReplacing Page 15
-42
25 -
Shutter wheel for Camshaft Position
(CMP) sensor -G40-
Note position: insert lug in camshaft notch
26 -
Washer ConicalNote position
27 -
Bolt 25 Nm (18 ft lb)
28 -
Camshaft Position (CMP) sensor -G40-
housing
29 -
Bolt 10 Nm (7 ft lb)
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Replacing intake camshaft oil seal

Removing

- Remove ribbed belt and ribbed belt tensioner
Page 13
-15
.

- Disconnect harness connector from Camshaft Position (CMP) sensor -
G40-.
- Remove upper toothed belt cover Page 13
-29
.
- Remove housing for Camshaft Position (CMP) sensor -G40-.
- Remove shutter wheel and washer for Camshaft Position (CMP)
sensor -G40-.

- Insert 2085/1 adapter into camshaft by hand until stop to guide seal
puller.
- Unscrew inner part of 2085 seal puller two turns (approx. 3 mm or 0.12
in.) and secure using knurled bolt.
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15-49


Note:
When installing ribbed belt, make sure it is seated correctly on the pulleys.
Tightening torques - Using 3241/3 camshaft fitting tool and 3241/1 pressure sleeve, press
oil seal in to stop.
- Install Camshaft Position (CMP) sensor -G40- Page 15
-38
.
- Install upper toothed belt cover.
- Install ribbed belt and ribbed belt tensioner Page 13
-15
.
Component
Tightening
torques
Shutter wheel for Camshaft Position (CMP) sensor -
G40- to camshaft 25 Nm (18 ft lb)
Housing for Camshaft Position (CMP) sensor -G40-
to cylinder head 10 Nm (7 ft lb)
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- Loosen tensioner (arrows) and remove toothed belt from camshaft
gear.
- Use 3036 retainer to loosen camshaft gear.
- Remove camshaft gear.
- Remove housing for Camshaft Position (CMP) sensor -G40-.
- Remove shutter wheel for Camshaft Position (CMP) sensor -G40-.

CAUTION!
If over-tightened, the chain tensioner will be damaged. - Secure hydraulic chain tensioner using 3366 bracket-tensioner.
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15-57

- Remove 3366 bracket-tensioner.

CAUTION!
Part numbers are listed here for reference only. Always check with
your Parts department for the latest information. - Lightly coat hatched surface of double bearing cap with sealant D 454
300 A2 and install bearing cap (pay attention to alignment bushings).
- Install remaining bearing caps (pay attention to alignment bushings).
- Replace oil seals for intake and exhaust camshafts Page 15
-42
.

- Install camshaft gear.
Note position: thin rib of camshaft gear points outward (arrows) and
TDC Cyl. 1 marking is visible from the front.
- Using 3036 retainer, install camshaft gear retaining bolt.
- Install Camshaft Position (CMP) sensor -G40- Page 15
-38
.
- Install cylinder head cover Page 15
-18
.
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Tightening torques

Component
Tightening
torques
Bearing cap to cylinder head 10 Nm (7 ft lb)
Hydraulic chain tensioner to
cylinder head 10 Nm (7 ft lb)
Shutter wheel for Camshaft
Position (CMP) sensor -G40- to
camshaft 25 Nm (18 ft
lb)
Housing for Camshaft Position
(CMP) sensor -G40- to cylinder
head 10 Nm (7 ft lb)
Ribbed belt tensioner to
mounting bracket 25 Nm (18 ft
lb)
Camshaft gear to camshaft 65 Nm (48 ft
lb)
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