width AUDI A4 1995 B5 / 1.G AFC Engine Cylinder Block Crankshaft And Flywheel Component Assembly Manual

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
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ylinder block, crankshaft and fl
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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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13-23

- Remove crankshaft bearing cap again.

-
Compare width of Plastigage with measuring scale. Specifications:

New: 0.018-0.045 mm (0.0007-0.0018 in.)
Wear limit: 0.10 mm (0.0039 in.)
Pa
ge 23 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
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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

13-32

- Remove connecting rod bearing caps again.

-
Compare width of Plastigage with measuring
scale.
Specifications:

New:0.015 to 0.062 mm (0.00059 to
0.00244 in.) Wear
limit: 0.12 mm (0.0047 in.)
Pa
ge 32 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