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Engine - Technical Data (m54) BMW X3 E83

Mechanical ~477 words

11 00 Engine in general M54 B 30

Cylinder6
BoreMm84
StrokeMm89.6
Effective displacementCm 32979
Compression ratio110.2
Max. permissible engine speedRpm6500
Compression pressure (approx. equal value for all cylinders)Min. bar10... 11

ENGINE IN GENERAL M54 B 30 TECHNICAL DATA SPECIFICATION

11 00 Engine in general M54 B22

Cylinder6
BoreMm80
StrokeMm72
Effective displacementCm 32171
Compression ratio110.8
Max. permissible engine speedRpm6500
Compression pressure (approx. equal value for all cylinders)Min. bar10... 11

ENGINE IN GENERAL M54 B22 TECHNICAL DATA SPECIFICATION

11 00 Engine in general M54 B25

Cylinder6
BoreMm84
StrokeMm75
Effective displacementCm 32494
Compression ratio110.5
Max. permissible engine speedRpm6500
Compression pressure (approx. equal value for all cylinders)Min. bar10... 11

ENGINE IN GENERAL M54 B25 TECHNICAL DATA SPECIFICATION

11 11 Engine Block, Cylinder Crankcase M54 B 30

Bore hole diameter (1)Mm84.000 +0.010
1. Interference (1) (only permitted for aluminum engine block with cast iron liners)Mm84.250 +0.010
Permitted out-of-round of cylinder bore (1)Mm0.005
Permitted conicity of cylinder bore (1)Mm0.010
Permissible total wear tolerance between piston and cylinder (engine operated)Mm0.15
(1) new condition or rework
(1)New condition or rework

ENGINE BLOCK AND CYLINDER CRANKCASE M54 B 30 TECHNICAL DATA SPECIFICATION

11 11 Engine Block, Cylinder Crankcase M54 B22

Bore hole diameter (1)Mm80.000 +0.010
1. Interference (1) (only permitted for aluminum engine block with cast iron liners)Mm80.250 +0.010
Permitted out-of-round of cylinder bore (1)Mm0.005
Permitted conicity of cylinder bore (1)Mm0.010
Permissible total wear tolerance between piston and cylinder (engine operated)Mm0.15
(1) new condition or rework
(1)New condition or rework

ENGINE BLOCK AND CYLINDER CRANKCASE M54 B22 TECHNICAL DATA SPECIFICATION

11 11 Engine Block, Cylinder Crankcase M54 B25

Bore hole Diameter (1)Mm84.000 +0.010
1. Interference (1) (only permitted for aluminum engine block with cast iron liners)Mm84.250 +0.010
Permitted out-of-round of cylinder bore (1)Mm0.005
Permitted conicity of cylinder bore (1)Mm0.010
Permissible total wear tolerance between piston and cylinder (engine operated)Mm0.15
(1) new condition or rework
(1)New condition or rework

ENGINE BLOCK AND CYLINDER CRANKCASE M54 B25 TECHNICAL DATA SPECIFICATION

11 12 Cylinder Head with Cover M54

Cylinder head height: Original dimensionMm140.0
Machining limit refer to repair instructionsMm139.7
Valve guides are not available as replacement parts.
Inside diameter of valve guide (installed)
StandardMm6.0 H7
Size 1Mm6.1 H7
Size 2Mm6.2 H7
Max. permissible tilt clearance (between valve and valve guide)Mm0.5
Bearing of camshaft
Pilot bearing (1) widthMm20 d8

CYLINDER HEAD WITH COVER M54 TECHNICAL DATA SPECIFICATION

11 12 Cylinder Head with Valve Seat Cover M54 B 30

Valve seat angle°45
Correction angle: outer°15
Correction angle: inner°60
Valve seat width: InletMm1.65 +/- 0.25
Valve seat width: ExhaustMm1.65 +/- 0.25
Diameter Valve seat
Valve seat surface: Outside dia. inletMm32.4
Valve seat surface: Outside dia. exhaustMm30.0

CYLINDER HEAD WITH VALVE SEAT COVER M54 B 30 TECHNICAL DATA SPECIFICATION

11 12 Cylinder Head with Valve Seat Cover M54 B22

Valve seat angle°45
Correction angle: outer°15
Correction angle: inner°60
Valve seat width: InletMm1.65 +/- 0.25
Valve seat width: ExhaustMm1.65 +/- 0.25
Diameter Valve seat
Valve seat surface: Outside dia. inletMm29.4
Valve seat surface: Outside dia. exhaustMm26.5

CYLINDER HEAD WITH VALVE SEAT COVER M54 B22 TECHNICAL DATA SPECIFICATION

11 12 Cylinder Head with Valve Seat Cover M54 B25

Valve seat angle°45
Correction angle: outer°15
Correction angle: inner°60
Valve seat width: InletMm1.65 +/- 0.25
Valve seat width: ExhaustMm1.65 +/- 0.25
Diameter Valve seat
Valve seat surface: Outside dia. inletMm32.4
Valve seat surface: Outside dia. exhaustMm30.0

CYLINDER HEAD WITH VALVE SEAT COVER M54 B25 TECHNICAL DATA SPECIFICATION

11 21 Crankshaft and Bearings M54

Ground sizes of main bearing journals
Standard yellowMm59.984... 59.990
Standard greenMm59.977... 59.983
Standard whiteMm59.971... 59.976
Undersize 1 (U 0.25) yellowMm59.734... 59.740
Undersize 1 (U 0.25) greenMm59.727... 59.733
Undersize 1 (U 0.25) whiteMm59.721... 59.726
Undersize 2 (U 0.50) yellowMm59.484... 59.490
Undersize 2 (U 0.50) greenMm59.477... 59.483
Undersize 2 (U 0.50) whiteMm59.471... 59.476
Crankshaft bearing clearance, radialMm0.020... 0.058

CRANKSHAFT AND BEARINGS M54 TECHNICAL DATA SPECIFICATION

Grinding stages, crankshaft guide bearing
StandardMm25.0 F8
Size 1Mm25.2 F8
Size 2Mm25.4 F8
Crankshaft axial playMm0.080... 0.163
Ground sizes of conrod bearing journals
StandardMm45.00 -0.009 -0.025
Size 1Mm44.75 -0.009 -0.025
Size 2Mm44.50 -0.009 -0.025
Radial conrod bearing playMm0.020... 0.055

CRANKSHAFT AND BEARINGS M54 TECHNICAL DATA SPECIFICATION

Max. permissible runout on center main bearing journal (crankshaft at outer bearing journal recorded)Mm0.20

CRANKSHAFT AND BEARINGS M54 TECHNICAL DATA SPECIFICATION

11 22 Flywheel M54

Max. axial runout measured at outside diameterMm0.30
Max. radial runout measured at outside diameterMm0.20

FLYWHEEL M54 TECHNICAL DATA SPECIFICATION

11 23 Vibration Damper M54

Max. radial runoutMm0.20
Max. axial runoutMm0.40

VIBRATION DAMPER M54 TECHNICAL DATA SPECIFICATION

11 24 Connecting Rods and Bearings M54

Diameter large connecting rod eye (without bearing)Mm48.000... 48.016
Conrod bush bore diameterPhiMm22 +0.010 +0.005
Permitted weight deviation of conrods inside an engine (without bearing shells)G+/- 4

CONNECTING RODS AND BEARINGS M54 TECHNICAL DATA SPECIFICATION

11 25 Pistons with Rings and Pins M54 B 30

Piston and piston pin are paired - replace together only.
Measuring point "A" (position)Mm8
Piston diameter (measuring point "A")
StandardMm83.995 +/- 0.014
1. Oversize a) (only permitted for aluminum engine block with cast iron liners)Mm84.245 +/- 0.014
Piston running clearanceMm0.01... 0.04
Permissible total wear tolerance between piston and cylinder (engine operated)Mm0.15

PISTONS WITH RINGS AND PINS M54 B 30 TECHNICAL DATA SPECIFICATION

1St Groove
End clearanceMm0.20... 0.40
Axial playMm0.020... 0.060
2nd groove
End clearanceMm0.20... 0.40
Axial playMm0.020... 0.060
3rd groove
End clearanceMm0.20... 0.45
Axial playMm0.015... 0.060

PISTONS WITH RINGS AND PINS M54 B 30 TECHNICAL DATA SPECIFICATION

11 25 Pistons with Rings and Pins M54 B22

Piston and piston pin are paired - replace together only.
Measuring point "A" (position)Mm10
Piston diameter (measuring point "A")
StandardMm79.980 +/- 0.013
1. Oversize a) (only permitted for aluminum engine block with cast iron liners)Mm80.230 +/- 0.013
Piston running clearanceMm0.01... 0.04
Permissible total wear tolerance between piston and cylinder (engine operated)Mm0.15

PISTONS WITH RINGS AND PINS M54 B22 TECHNICAL DATA SPECIFICATION

1st groove
End clearanceMm0.10... 0.30
Axial playMm0.020... 0.060
2nd groove
End clearanceMm0.20... 0.40
Axial playMm0.020... 0.060
3rd groove
End clearanceMm0.25... 0.50
Axial playMm0.020... 0.060

PISTONS WITH RINGS AND PINS M54 B22 TECHNICAL DATA SPECIFICATION

11 25 Pistons with Rings and Pins M54 B25

Piston and piston pin are paired - replace together only.
Measuring point "A" (position)Mm8
Piston diameter (measuring point "A")
StandardMm83.995 +/- 0.014
1. Oversize a) (only permitted for aluminum engine block with cast iron liners)Mm84.245 +/- 0.014
Piston running clearanceMm0.01... 0.04
Permissible total wear tolerance between piston and cylinder (engine operated)Mm0.15

PISTONS WITH RINGS AND PINS M54 B25 TECHNICAL DATA SPECIFICATION

1st groove
End clearanceMm0.20... 0.40
Axial playMm0.020... 0.060
2nd groove
End clearanceMm0.20... 0.40
Axial playMm0.020... 0.060
3rd groove
End clearanceMm0.20... 0.45
Axial playMm0.015... 0.060

PISTONS WITH RINGS AND PINS M54 B25 TECHNICAL DATA SPECIFICATION

11 31 Camshaft M54

Pilot bearing width: Inlet (bearing no. 1)Mm20 H8
Pilot bearing width: Exhaust (bearing no. 1)Mm20 H9
Running clearance: RadialMm0.020... 0.054
Running clearance: AxialMm0.150... 0.330

CAMSHAFT M54 TECHNICAL DATA SPECIFICATION

11 34 Valves with Springs M54

The following valve versions are available for repairs in addition to the standard valves
Stem dia. inlet stage 1Mm6.1 -0.025 -0.040
Stem dia. exhaust stage 1Mm6.1 -0.040 -0.055
Overmeasure at valve plateMm0.2
Identification on stemR1
Stem dia. inlet stage 2Mm6.2 -0.025 -0.040
Stem dia. exhaust stage 2Mm6.2 -0.040 -0.055
Overmeasure at valve plateMm0.4
Identification on stemR2

VALVES WITH SPRINGS M54 TECHNICAL DATA SPECIFICATION

11 34 Valves with Springs M54 B 30

Plate dia.
InletMm33.0
ExhaustMm30.5
Stem Diameter
InletMm6.0 -0.025 -0.040
ExhaustMm6.0 -0.040 -0.055

VALVES WITH SPRINGS M54 B 30 TECHNICAL DATA SPECIFICATION

11 34 Valves with Springs M54 B22

Plate dia.
InletMm30.0
ExhaustMm27.0
Stem Diameter
InletMm6.0 -0.025 -0.040
ExhaustMm6.0 -0.040 -0.055

VALVES WITH SPRINGS M54 B22 TECHNICAL DATA SPECIFICATION

11 34 Valves with Springs M54 B25

Plate dia.
InletMm33.0
ExhaustMm30.5
Stem Diameter
InletMm6.0 -0.025 -0.040
ExhaustMm6.0 -0.040 -0.055

VALVES WITH SPRINGS M54 B25 TECHNICAL DATA SPECIFICATION

11 41 Oil Pump with Strainer and Drive M54

Oil pressure at idle speed with engine at operating temperatureMin bar0.5
Regulated pressureBar4.0

OIL PUMP WITH STRAINER AND DRIVE M54 TECHNICAL DATA SPECIFICATION

11 40 Oil Supply E83 / M54

Oil change Volume with oil filterLtr.6.20

Oil Supply E83 / M54 TECHNICAL DATA SPECIFICATION

Oil pressure at idle speed with engine at operating temperatureMin bar0.5
Regulated pressureBar4.0

OIL PUMP WITH STRAINER AND DRIVE M54 TECHNICAL DATA SPECIFICATION

11 52 Fan Coupling M54

Fan clutch
Switch-on temperature°C90
Switch-off temperature°C60
Tilt play of bearing (with dia. 120 mm)Mm+/-0.65

FAN COUPLING M54 TECHNICAL DATA SPECIFICATION

11 53 Thermostat and Connections M54

Stamped in thermostat. Electrically actuated map thermostat.Approx. °C97

THERMOSTAT AND CONNECTIONS M54 TECHNICAL DATA SPECIFICATION