wheel bolts AUDI A8 1998 D2 / 1.G AHA ATQ Engines Cylinder Block Crankshaft And Flywheel Component Service Manual

13-4


Cylinder block, crankshaft and
flywheel, servicing Notes:

Always replace seals and O-rings.
The engine speed sensor is installed in the
transmission bellhousing with a spacer washer
underneath.
1 -
Main bearing cap bolts
Always replace60 Nm (44 ft lb) + additional 180 (1/2 turn)
2 -
Main bearing caps
Always replace boltsMarking -1- on oil pump sideChecking bearing clearance page 13
-25
3 -
Connecting rod bearing bolts
Always replace30 Nm (22 ft lb) + additional 90 (1/4 turn)When measuring radial clearance, tighten
to 20 Nm (15 ft lb), but do not turn further
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13-15

- Insert pin and release tension.

- Remove vibration damper page 13
-11
.

Installing - Remove idler wheel for ribbed belt (arrows).
- Remove toothed belt.

- Install 3391 camshaft locator bar onto camshaft locking plates.
- Loosen both bolts for camshafts and back out bolts approx. 5 turns.
- Remove 3391 camshaft locator bar.
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13-20

Dual-mass flywheel

Notes:

Only replace oil seal with sealing flange.
Drain coolant before removing sealing flange
page 19
-11
.
If sealing flange is not available, proceed as
follows:

- Remove clutch and dual-mass flywheel or
driveplate.

Notes: - Pry out seal using 10-221 extractor.
- Clean running and sealing surfaces.
- Push seal onto crankshaft using assembly aid.
Do not lubricate sealing lip or outer edge of seal before pressing in.The assembly aid is supplied with the seal.

- Press in seal up to stop using 2003/3 seal installer and bolts for dual-
mass flywheel or driveplate.
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13-22

Dual-mass flywheel or driveplate,
removing and installing, installation
dimensions


Dual-mass flywheel

Note:
A pilot needle bearing is in the dual-mass flywheel and must be inserted
when dual-mass flywheel is replaced.
Note:
Always replace dual-mass flywheel mounting bolts. - With crankshaft at Top Dead Center (TDC), install 3242 crankshaft
holder.
- Mark position of dual-mass flywheel and engine housing (arrows).
- Remove bolts and replace.Component
Tightening torque
Dual-mass flywheel to crankshaft
60 Nm (44 ft lb) + 180 Clutch to dual-mass flywheel 20 Nm (15 ft lb)
Pa
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ylinder block, crankshaft and fl
ywheel, servicin
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13-23

Driveplate

- Hold crankshaft in position using 3242
crankshaft holder page 13
-12
.

- Mark hole pattern of driveplate, shim -1- and
washer -2- to crankshaft.

- Mark positions of shim -1- and washer -2-
(behind driveplate).

CAUTION!
Part numbers are listed here for reference only. Always check with
your Parts department for the latest information.
Notes: - Install driveplate with washer -2- (Part No. 035 105 303 A) and shim -1-
3.0 mm (Part No. 054 105 301) or 4.0 mm (Part No. 054 105 202).
Short engines and exchange engines are supplied without a bushing
in the crankshaft. Always install a new bushing before installing the
driveplate. Remove bushing using 21/1 Kukko puller and 21/2 Kukko support.Always replace driveplate mounting bolts.
Component
Tightening torque
Driveplate to crankshaft
30 Nm (22 ft lb) + 90
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ywheel, servicin
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13-34

Clearance when new
Wear limit
0.015-0.062 mm (0.0006-
0.0024 in.) 0.12 mm (0.0047
in.)

- Always replace connecting rod bolts.
Pa
ge 33 of 33 C
ylinder block, crankshaft and fl
ywheel, 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.GE03.13.2