wheel bolts AUDI A4 1999 B5 / 1.G AFC Engine Cylinder Block Crankshaft And Flywheel Component Assembly Manual

13-6


Cylinder block, crankshaft and
flywheel, component layout Note:
Always replace gaskets and seals.
1 -
Main bearing cap bolts
Always replaceTightening torque: 60 Nm (44 ft lb) plus
1/2-turn (180 )
2 -
Main bearing cap
ID: "1" on side facing oil pumpAlways replace boltsChecking bearing clearance page 13
-21
3 -
Connecting rod bearing cap bolts
Always replaceTightening torque: 30 Nm (22 ft lb) plus
1/4-turn (90 ) Tighten to 20 Nm (15 ft lb) for measuring
radial clearance, but do NOT tighten further
4 -
Connecting rod bearing shells Never interchange used connecting rod
bearing shells
Pa
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ylinder block, crankshaft and fl
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13-8


12 -
Dual mass flywheel or drive plate
Removing and installing, installation
dimensions page 13
-17

Removing and installing pilot needle
bearing page 13
-16

Adjusting engine speed (RPM) sensor
bracket -G28- page 13
-20

13 -
Main bearing shell
Checking radial clearance page 13
-21
14 -
Seal
Replacing page 13
-14
15 -
10 Nm (7 ft lb)
16 -
25 Nm (18 ft lb)
Thread bolts in hand-tight before tightening
crankshaft main bearing caps
17 -
Cylinder block
Pa
ge 5 of 32 C
ylinder block, crankshaft and fl
ywheel, com
ponent la
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11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
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pair&id=AUDI.B5.GE01.13.4

13-22

Checking radial clearance

Note:
Radial clearance is measured using Plastigage
.
Plastigage type
Color
Measuring range
PG-1 Green 0.025 - 0.076 mm
PR-1 Red 0.050 - 0.150 mm

- Remove crankshaft bearing cap.

- Clean bearing shell and crankshaft journal.

CAUTION!
Do NOT turn the crankshaft or allow it to rotate during the
measurement with Plastigage in place. -
Place Plastigage on crankshaft journal over entire width of bearing,
or in bearing shell (arrow). - Install crankshaft bearing cap with bearing shell and new bolts.
-
Tighten to 60 Nm (44 ft lb) plus1/2-turn 180 .
Pa
ge 22 of 32 C
ylinder block, crankshaft and fl
ywheel, com
ponent la
yout
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE01.13.4

13-31

Connecting rods and connecting rod
bearings, checking


Replace connecting rods only as a complete
set.
Do not interchange connecting rod bearings.
Always replace connecting rod bearing cap
bolts.

Checking radial clearance

CAUTION!
Do NOT turn the crankshaft or allow it to rotate during the
measurement with Plastigage in place. - Mark connecting rod bearing caps with light punch marks (arrow)
before removing.
- Remove connecting rod bearing caps.
- Clean bearing caps and journals.
-
Place Plastigage over entire width of bearing journal or in bearing
shell. - Re-install connecting rod bearing cap and tighten to 20 Nm (15 ft lb)
only; do NOT tighten further.
Pa
ge 31 of 32 C
ylinder block, crankshaft and fl
ywheel, com
ponent la
yout
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE01.13.4