Contents Section: Mechanical All sections

Engine - Technical Data BMW X6 M E71

Mechanical ~184 words

11 31 Camshaft S63 B44

Guide bearing (width)Mm14.1...14.143
Radial runoutMm0.05... 0.1
Axial playMm0.065... 0.15

CAMSHAFT SPECIFICATIONS

11 24 Connecting Rods and Bearings S63 B44

[] Large connecting rod eye (without bearing)Mm57.600 +0.016
Conrod bushing: Inside diameterMm22.000 +0.016 +0.008
Connecting rod bearing, installation clearanceMm
Permissible total deviation of connecting rods in one engine (without bearing shells)G± 2

CONNECTING RODS AND BEARINGS SPECIFICATIONS

Ground sizes of main bearing journals

Ground sizes of main bearing journalsBearing journal 2-5
Original (designation S1)Mm64.984... 64.990
Original (designation S2)Mm64.977... 64.983
Original (designation S3)Mm64.971... 64.976
Grinding stage 1 (designation B1)Mm64.734... 64.740
Grinding stage 1 (designation B2)Mm64.727... 64.733
Grinding stage 1 (designation B3)Mm64.721... 64.726
Grinding stage 2 (designation C1)Mm64.484... 64.490
Grinding stage 2 (designation C2)Mm64.477... 64.483
Grinding stage 2 (designation C3)Mm64.471... 64.476
Crankshaft bearing clearance, radialMm0.020... 0.046
Max. permitted runout at centre crankshaft journalMm0.15

CRANKSHAFT AND BEARINGS SPECIFICATIONS

Ground sizes of conrod bearing journals

Ground sizes of conrod bearing journals
OriginalMm53.971...53.990
Stage 1Mm53.721...53.740
Size 2Mm53.471...53.490
Radial conrod bearing playMm0.025... 0.070

CRANKSHAFT AND BEARINGS SPECIFICATIONS

Ground sizes of main bearing journalsBearing journal 1
Original (designation S1)Mm64.974... 64.980
Original (designation S2)Mm64.967... 64.973
Original (designation S3)Mm64.961... 64.966
Grinding stage 1 (designation B1)Mm64.724... 64.730
Grinding stage 1 (designation B2)Mm64.717... 64.723
Grinding stage 1 (designation B3)Mm64.711... 64.716
Grinding stage 2 (designation C1)Mm64.474... 64.480
Grinding stage 2 (designation C2)Mm64.467... 64.473
Grinding stage 2 (designation C3)Mm64.461... 64.466
Crankshaft bearing clearance, radialMm0.020... 0.046
Max. permitted runout at centre crankshaft journalMm0.15

CRANKSHAFT AND BEARINGS SPECIFICATIONS

11 21 Grinding Stages Crankshaft Guide Bearings

Grinding stages, crankshaft guide bearing
OriginalMm28 +0.053 +0.020
Stage 1Mm28.2 +0.053 0.020
Size 2Mm28.4 +0.053 +0.020
Crankshaft axial playMm0.080... 0.246
Coefficient of friction - crankshaftNmMAX 5

CRANKSHAFT AND BEARINGS SPECIFICATIONS

11 12 Cylinder Head with Valve Seat Cover S63 B44

Valve seat angle°45
Correction angle: outer°35
Correction angle: inner°55
Valve seat width: IntakeMm0.9 +0.1
Valve seat width: ExhaustMm1.15 +0.1
[] Valve seat
Valve seat surface: Outside dia. inletMm31.6 +0.1
Valve seat surface: Outside dia. exhaustMm27.6 +0.1

CYLINDER HEAD WITH VALVE SEAT COVER SPECIFICATIONS

11 12 Cylinder head with lid S63 B44

Cylinder head height: Original dimensionMm134, 00 ± 0, 05
Machining limitMm133, 70 ± 0, 05
Valve guides are not available as replacement parts.
Inner diameter of installed valve guide
Original intake valveMm6, 00... 6, 02
Original exhaust valveMm6, 00... 6, 02
Tilt clearance, maximum (wear between valve and valve guide)Mm0, 06...0, 22
Bearing of camshaft
Guide bearing (width)Mm13, 99... 14, 04

CYLINDER HEAD WITH LID SPECIFICATIONS

11 11 Engine Block, Cylinder Crankcase S63 B44

Bore [] stage 0 (1)Mm89, 000 +0, 02
Bore [] stage 00 (1)Mm89, 250 +0, 02
Bore [] stage 1 (1)Mm89, 500 +0, 02
Permitted out-of-round of cylinder bore (1)Mm0.01
Permitted conicity of cylinder bore (1)Mm0.01
Permissible total wear tolerance between piston and cylinder (engine operated)Mm0.15
(1) New condition or reworking
(1)New condition or reworking

ENGINE BLOCK, CYLINDER CRANKCASE SPECIFICATIONS

11 00 Engine in general S63 B44

Cylinder8
Bore holeMm89
StrokeMm88, 3
Effective displacementCm 34395
Compression ratio19, 3
Max. permissible engine speedRpm7000
Permissible constant speedRpm6550
Compression pressure: Minimum and maximum values.14...18
Compression pressure: Maximum deviation of all cylinders to each other.Bar2

ENGINE IN GENERAL SPECIFICATIONS

11 41 Oil Pump with Strainer and Drive S63 B44

Oil pressure at idle speed with engine at operating temperatureMin bar1.5
Control pressure with engine at operating temperatureBar4.0... 6.0

OIL PUMP WITH STRAINER AND DRIVE SPECIFICATIONS

11 40 Oil supply E70 / E71 / S63 B44

Oil grades and consumption: see recommended engine oils for BMW Group engines
Filling capacity, engine oil change with oil filter elementLitres8.50
Oil quantity in oil sumpLitres8.00
Oil quantity in oil filter elementLitres0.50
Oil quantity in oil lines and in engine oil coolerLitres1.20

OIL SUPPLY SPECIFICATIONS

11 25 Pistons with Rings and Pins S63 B44

1st groove
End clearanceMm0.15... 0.30
Axial playMm0.020... 0.070
2nd groove
End clearanceMm0.30... 0.50
Axial playMm0.015... 0.060
3rd groove
End clearanceMmCant be measured
Axial playMmCant be measured

PISTONS WITH RINGS AND PINS SPECIFICATIONS

Piston and pin are paired to each other - replace together only.
Measuring point "A" (position)Mm8
Piston diameter at measuring point "A"
Original (new dimension)Mm88, 97... 88, 99
Oversize (0.25)Mm89, 22... 89, 23
Oversize (0.50)Mm89, 47... 89, 50
Piston installation clearance (piston new)Mm0, 03...0, 04
Piston installation clearance (piston worn)Mm0, 02...0, 05
Permissible total wear tolerance between piston and cylinder (engine operated)Mm0.15

PISTONS WITH RINGS AND PINS SPECIFICATIONS

11 34 Valves with Springs S63 B44

Plate dia.
IntakeMm33.2 ±0.1
Exhaust29 ± 0.1
Stem []
IntakeMm5.94 +0 -0.04
ExhaustMm5.92 +0.02 -0.02

VALVES WITH SPRINGS SPECIFICATIONS

11 23 Vibration damper S63 B44

Max. permitted radial runoutMm0.20
Max. permitted axial runoutMm0.20

VIBRATION DAMPER SPECIFICATIONS