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VAG Engine Specs: Dimensions & Wear Limits (Articles)

 
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VAG Engine Specs: Dimensions & Wear Limits
Michael II Post07-10-2003, 11:08  
text
Dimensions and wear limits for various VAG engines










3-cylinder PD engines (AMF, ANY, AYZ, BAY)

4-cylinder PD engines (AJM, ANU, ARL, ASZ, ATD, ATJ, AUY, AVB, AVF, AWX, AXR)

10-cylinder PD engines (AJS, AYH)

4-cylinder CR engines (AUH, BCQ)

8-cylinder CR engines (AKF, ASE)
4-cylinder VEP engines.

5-cylinder VEP engines.

6-cylinder VEP engines.




3-cylinder PD engines

(in bar) 25..31 Wear limit 19 19 5 7.0 7.0 2.0 Overpressure valve pump 53,2547,050,080,080,0879,97 Verschleiß 1,0 0,20..0,35 Neu 0,90..1,15 0,25..0,5 Neu 0,06..0,09 0,06..0,09 0,25 0,25 Verschleiß0,91..1,0Nockenwelle (in mm)0,150,150,150,110,110,11Steuerzeiten bei 1 mm Ventilhub (in Grad)15,812,812,828,227,618,713,6
1.ARLATD


AMF, BAY

ANY

AYZ

Compression pressure
New 25..31
25..31


19


Max. difference

5
5



Oil pressure (at a minimum oil temperature of 80°C in bar)
Max.
5.8


Min. at 2000 RPM
2.0

2.0


11.5
11.5
11.5



Crankshaft Axialspiel (in mm)

Neu

0,07..0,17

siehe 1

siehe 1


Verschleißgrenze

0,37







Kurbelwelle Radialspiel (in mm)

Neu

0,03..0,08

siehe 1

siehe 1


Verscheißgrenze

0,17







Kurbelwellenlager (Durchmesser in mm)

Grundmaß

54,00

siehe 1

siehe 1


Stufe I

53,75




Stufe II

53,50



Stufe III








Pleuellager Kurbelwelle (Durchmesser in mm)

Grundmaß

47,80

siehe 1

siehe 1


Stufe I

47,55




Stufe II

47,30



Stufe III








Pleuel auf Kurbelwelle (in mm)

Axialspiel max.

0,37

0,37

0,37


Radialspiel max.








Kolben (Durchmesser in mm)
Grundmaß
79,47
76,46
76,46

Stufe I









Zylinderbohrung (Durchmesser in mm)

Grundmaß

79,51

76,51

76,51


Stufe I

80,01








Kolbenringe Stoßspiel (in mm)

1. Kompressionsring
Neu


0,25..0,40


0,20..0,35


2. Kompressionsring
Verschleiß
0,20..0,40
1,0

0,90..1,15



Ölabstreifring Neu Verschleiß

0,25..0,50
1,0
0,25..0,5














Kolbenringe Höhenspiel (in mm)



1. Kompressionsring
Verschleiß

0,25
0,06..0,09
0,25

0,25




2. Kompressionsring
Neu
Verschleiß

0,05..0,08

0,05..0,08

0,05..0,08
0,25

Ölabstreifring
Neu



0,03..0,06
0,15


0,03..0,06
0,15


0,03..0,06
0,15











Kolbenüberstand in OT (in mm)


Stufe I


0,91..1,0
0,91..1,0





Stufe II


1,01..1,10
1,01..1,10


1,01..1,10


Stufe III

1,11..1,20

1,11..1,20

1,11..1,20






Axialspiel max.




Radialspiel max.




Schlag max.

0,01

0,01

0,01






Einlaß öffnet nach OT





Einlaß schließt nach UT

25,3

22,3

22,3



Auslaß öffnet vor UT


27,6


Auslaß schließt vor OT


13,6





Ventilführung Kippspiel (in mm)

Max.

1,3

1,3

1,3


: The crankshaft must not be disassembled. Even loosening the crankshaft bearing cover nuts can cause deformations.
of the cylinder block. These deformations reduce the bearing clearance. Even if the bearing shells are not replaced,
Bearing damage can be caused by a changed bearing clearance.
If the cylinder head nuts have been loosened, the entire cylinder block must be replaced with the crankshaft.


4-cylinder PD engines




AJM, AVF
ANU, AVB
ASZ

ATJ
AUY
AWX, AXR

Compression pressure

(in bar)


New


25..31 25..31
25..3125..311955555Oil pressure (at a minimum oil temperature of 80°C in bar)7,07,07,07,00,82,02,02,02,02,012,012,012,012,012,05,05,05,0Kurbelwelle Axialspiel (in mm)0,07..0,230,07..0,170,07..0,170,07..0,230,300,370,03..0,080,03..0,080,02..0,040,150,170,170,150,15Kurbelwellenlager (Durchmesser in mm)54,0054.0054.0053.7553.7553.7553.75Level II53.5053.50Crankshaft connecting rod bearing (diameter)
mm)47,8047,8050,9047,5547,5550,6547,3047,3050,4050,40Stufe III50,1550,15Pleuel auf Kurbelwelle (in mm)0,370,370,370,370,080,08Kolben (Durchmesser in mm)79,4779,4779,4779,4779,47Stufe I79,7279,9779,9779,9779,9779,5179,5179,7679,7679,7679,7680,0180,0180,0180,0180,01Kolbenringe Stoßspiel (in mm) Neu 0,25..0,40 1,0 1,0 1,0 0,25..0,402. Compression ring 1.0 0.20..0,40 1,0 0,25..0,40 1,0 Neu 1,0 1,0 Verschleiß Wear 0.05..0.08 0.25 0,05..0,08 0,25 0,05..0,08 0,25Ölabstreifring 0,15 0,150,91..1,0Stufe II1,01..1,101,11..1,201,11..1,201,11..1,201,11..1,201,11..1,20Axialspiel max.0,150,15Radialspiel max.0,110,040,010,010,010,04Einlaß öffnet nach OT25.33028.228.218.71.3 Min. at idle
25..31

25..31
25..31
25..31


Wear limit

19

19

19
19
19
19
19



Max. difference





5
5
5













Max.




7,0
7,0
7,0

7,0


Min. bei Leerlauf

0,8

0,8

0,8

0,8
0,8
0,8
0,8



Min. bei 2000U/min




2,0
2,0
2,0



Überdruckventil Pumpe





12,0
12,0
12,0



Überdruckventil Filter

5,0
5,0
5,0

5,0
5,0














Neu




0,07..0,23
0,07..0,23
0,07..0,17
0,07..0,23


Verschleißgrenze

0,30

0,37

0,37

0,30
0,30

0,30











Kurbelwelle Radialspiel (in mm)

Neu

0,02..0,04


0,02..0,04
0,02..0,04
0,03..0,08

0,02..0,04



Verscheißgrenze




0,15
0,15
0,17














Grundmaß




54.00
54.00

54.00



Level I




53.75
53.75





53.50
53.50

53.50

53.50















Grundmaß




50,90
47,80

50,90



Stufe I




50,65
47,55

50,65



Stufe II




50,40
47,30





47,05
47,05

50,15

47,05















Axialspiel max.




0,37
0,37
0,37

0,37



Radialspiel max.

0,08

0,08

0,08


0,08
0,08
0,08












Grundmaß




79,47
79,47
79,47




79,72
79,72
79,72
79,72

79,72

79,72

79,72



Stufe II




79,97
79,97
79,97
79,97












Zylinderbohrung (Durchmesser in mm)

Grundmaß

79,51

79,51

79,51

79,51

79,51
79,51


Stufe I



79,76
79,76
79,76

79,76



Stufe II




80,01
80,01
80,01














1. Kompressionsring
Verschleiß

1,0

0,20..0,40

0,20..0,40

0,20..0,40

0,20..0,40
1,0

1,0

0,25..0,40
1,0


New
Wear

0.25..0.40

0.20..0.40
1.0

1,0

0,20..0,40

0,20..0,40
1,0


0,25..0,40 1,0





Ölabstreifring
Verschleiß


0,25..0,50
1,0

0,25..0,50
1,0

0,25..0,50
1,0

0,25..0,50
1,0

0,25..0,50



0,25..0,50

0,25..0,50
1,0






















Kolbenringe Höhenspiel (in mm)
1. Kompressionsring
Neu



0,06..0,09
0,25


0,06..0,09
0,25


0,06..0,09
0,25


0,06..0,09
0,25


0,06..0,09
0,25


0,06..0,09
0,25



0,06..0,09
0,25



2. Compression ring
New

0.25

0.05..0.08

}
0,05..0,08
0,25

0,25

0,05..0,08


0,05..0,08
0,25




Neu
Verschleiß


0,03..0,06
0,15

0,03..0,06
0,15

0,03..0,06
0,15

0,03..0,06
0,15

0,03..0,06



0,03..0,06

0,03..0,06
0,15






















Kolbenüberstand in OT (in mm)
Stufe I
0,91..1,0


0,91..1,0
0,91..1,0


0,91..1,0

0,91..1,0



0,91..1,0
0,91..1,0








1,01..1,10

1,01..1,10

1,01..1,10

1,01..1,10
1,01..1,10
1,01..1,10

1,01..1,10



Stufe III




1,11..1,20
1,11..1,20
1,11..1,20











Nockenwelle (in mm)


0,15
0,15
0,15
0,15

0,15
0,15




0,11
0,11
0,11
0,11

0,11

0,11

0,11



Schlag max.




0,04
0,04
0,04











Steuerzeiten bei 1 mm Ventilhub (in Grad)



14
15.8
15.8

15.8



Inlet closes after TDC


27

25.3

25.3







Outlet opens before BDC



28.2






Outlet closes before OT

17
18.7

18.7











Valve clearance play (in mm)

Max.

1.3

1.3

1.3

1.3

1.3
1.3
1.3





10-cylinder PD engines


AJS, AYH

Compression pressure (in bar)
New

Wear limit

Max. difference

Oil pressure (at a minimum oil temperature of 80°C in bar)

Max.



Min. at 2000 RPM

Pressure relief valve, pump

Pressure relief valve, filter



Crankshaft axial play (in mm)

New

0.07..0.17


Wear limit

0.37
Crankshaft bearing (diameter in mm)Nominal sizeGrade IConnecting rod bearing crankshaft (diameter in mm)Nominal sizeGrade IGrade II0.370,08 Verschleiß2. Kompressionsring Neu VerschleißÖlabstreifringKolbenringe Höhenspiel (in mm)1. Kompressionsring NewPiston protrusion at TDC (in mm)Stage IIntake opens after TDCIntake closes after BDCExhaust opens before BDCExhaust valve closes before OT Valve guide play (in mm)1.3
Compression pressure 28233Min. at 3800 RPM0.080 0.044

Crankshaft radial clearance (in mm)

New
0.03..0.08

Wear limit

0.17











Grade II


Grade III















Grade III





Connecting rod to crankshaft (in mm)
Axial clearance max.


Radialspiel max.




Kolben (Durchmesser in mm)
Grundmaß


Stufe I



Stufe II





Zylinderbohrung (Durchmesser in mm)
Grundmaß


Stufe I


Stufe II





Kolbenringe Stoßspiel (in mm)
1. Compression ring
} Neu






Neu Verschleiß





New
Wear



2. Compression ring
Wear


Oil scraper ring New
Wear









Stage II



Stage III




Camshaft (in mm)

Axial play max.

0.15

Radial play max.


0.11


Stroke max.

0.01






Valve timing at 1 mm valve lift (in degrees)


12



21.5





30





20.5





Max.



4-cylinder CR engines



AUH, BCQ


(in bar)

New



Wear limit


Max. difference





Oil pressure (at a minimum oil temperature of 90°C in bar)
Max.



4

Overpressure valve pump




Crankshaft axial clearance (in mm)

New


Wear limit
0.251




Crankshaft radial clearance (in mm)

New





Verscheißgrenze
0,098GrundmaßStufe IStufe IIStufe IIIPleuellager Kurbelwelle (Durchmesser in mm)GrundmaßStufe IStufe IIPleuel auf Kurbelwelle (in mm)Axialspiel max.Radialspiel max.Kolben (Durchmesser in mm)GrundmaßZylinderbohrung (Durchmesser in mm)GrundmaßStufe IKolbenringe Stoßspiel (in mm)1. Kompressionsring 1,0 NeuÖlabstreifring Neu VerschleißKolbenringe Höhenspiel (in mm) Neu 0.070 0.105 Wear Stage II Camshaft (in mm) Axial play max. 0.16 Radial play max. 0.04 Intake 1 closes after BDC Intake 2 closes after BDCValve guide play (in mm)8-cylinder CR enginesCompression pressure Wear limitMax. differenceOil pressure (at a minimum oil temperature of 80°C)
in bar)0,090..0,251Verscheißgrenze64,99



Kurbelwellenlager (Durchmesser in mm)

70,000



69,750



69,500



69,250






55,000



54,750



54,500

Stufe III
54,250






0,251



0,098







Stufe I







93,000



93,022





Neu Verschleiß

0,30...0,55


2. Kompressionsring
Verschleiß
0,30...0,55
1,0



0,30...0,50
1,0





1. Kompressionsring
Verschleiß
0,080
1,130

2. Compression ring New
Wear



Oil scraper ring
New

0.030
0.065


Piston protrusion at TDC (in mm)
Stage I





Stage III






0.16

Stroke max.




Valve timing at 1 mm valve lift (in degrees)
Intake 1 opens after TDC


5.3


32.0


Intake 2 opens after TDC

3.7

31.7





Exhaust öOpens before UT
55.6


Exhaust closes before OT
5.0







Max.















AKF, ASE


(in bar)
New
30..33


23


5





Max.

7,0


Min. bei 2000U/min

2,0


Überdruckventil Pumpe

5,6




Kurbelwelle Axialspiel (in mm)
Neu


Verschleißgrenze

0,28




Kurbelwelle Radialspiel (in mm)
Neu
0,018..0,045


0,10




Kurbelwellenlager (Durchmesser in mm)

Hauptlager 1



Hauptlager 2..5

65,00






Pleuellager Kurbelwelle (Durchmesser in mm)Connecting rod to crankshaft (in mm)Axial clearance max.Grade I New0.70..0.901.2Oil scraper ring0.81. Compression ring New Wear0.045..0.085Oil scraper ring0.0900.39..0.490.54..0.65Camshaft (in mm)Lift max.Valve timing at 1 mm valve lift (in degrees)Intake opens after TDCInlet closes after UTOutlet opens before UTValve guide play (in mm)1.0


Grundmaß

58,00





0.44


Radial clearance max.

0.079




Piston (diameter in mm)
Nominal size








Cylinder bore (diameter in mm)

Nominal size


Grade I





Piston ring end play (in mm)

1. Compression ring
Wear
0.29..0.35
0.5

2. Compression ring New
Wear



New
Wear

0.25..0.50




Piston ring clearance (in mm)

Wear


2. Compression ring
New

0.110

New Wear

0.025..0.065




Piston protrusion at TDC (in mm)

Stage I


Stage II
0.49..0.54


Stage III





Axial clearance max.
0.15

Radial clearance max.
0.085


0.04



















Outlet closes before OT









Max.


As of 10.2003. This list does not claim to be complete or accurate.




































































Tschüss

Michael II


Translated on 01-10-2026, 1:07.
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Ratings - VAG Engine Specs: Dimensions & Wear Limits

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