change wheel AUDI A4 1998 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
ge 1 of 32 C
ylinder block, crankshaft and fl
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11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
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13-21

Crankshaft axial and radial clearance,
checking


Orientation of crankshaft bearing caps
CAUTION!
Bearing shells must be reinstalled in their original location and
orientation. Always label the bearing shells according to their
installed position before removing. NEVER interchange used bearing
shells.
Checking axial clearance
Main bearing cap -1- is at the oil pump end (front).Main bearing cap -4- is at the flywheel end (rear).

- Install dial indicator with holder VW 387 on oil pump and set indicator
against crankshaft counterweight.
- Press crankshaft against dial indicator by hand.
- Set dial gauge to zero.
- Press crankshaft away from dial indicator and read gauge.
Specifications:

New: 0.07-0.23 mm (0.0027-0.0091 in.)
Wear limit: 0.25 mm (0.0098 in.)
Pa
ge 21 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