11 00 Engine In General N54 B30
| Cylinder | | 6 |
|---|
| Bore | Mm | 84 |
| Stroke | Mm | 89.6 |
| Effective displacement | Cm 3 | 2979 |
| Compression ratio | 1 | 10.2 |
| Max. permissible engine speed | RPM | 7000 |
| Permissible constant speed | RPM | 6550 |
| Compression pressure: Minimum and maximum values depending on position of Valvetronic. | | 14...16 |
| Compression pressure: Maximum deviation of all cylinders to each other. | Bar | 2 |
ENGINE IN GENERAL N54 B30-SPECIFICATION
11 11 Engine Block, Cylinder Crankcase N54 B30
| Bore Ø stage 0 (1) | Mm | 84.000 +0.014 |
|---|
| Bore Ø stage 00 (1) | Mm | |
| Bore Ø stage 1 (1) | Mm | 84.250 +0.014 |
| Permitted out-of-round of cylinder bore (1) | Mm | 0.005 |
| Permitted conicity of cylinder bore (1) | Mm | 0.01 |
| Permissible total wear tolerance between piston and cylinder (engine operated) | Mm | 0.15 |
| (1) new status or recondition |
| (1) | New status or recondition |
ENGINE BLOCK, CYLINDER CRANKCASE N54 B30-SPECIFICATION
11 12 Cylinder Head With Cover N54 B30
| Cylinder head height: Original dimension | Mm | 112.00 ± 0.05 |
|---|
| Machining limit | Mm | 111.70 ± 0.05 |
| Valve guides are not available as replacement parts. | | |
| Inside diameter of installed valve guide | | |
| Original inlet valve | Mm | 5.0 +0.012 |
| Original exhaust valve | Mm | 6.0 +0.012 |
| Tilt clearance, maximum (wear between valve and valve guide) | Mm | Cannot be measured |
| Bearing of camshaft | | |
| Guide bearing (width) | Mm | 22.000...22.052 |
CYLINDER HEAD WITH COVER N54 B30-SPECIFICATION
11 12 Cylinder Head With Valve Seat Cover N54 B30
| Valve seat angle | ° | 45 |
|---|
| Correction angle: outer | ° | 15 |
| Correction angle: inner | ° | 60 |
| Valve seat width: Inlet | Mm | 1.0 +0.1 |
| Valve seat width: Exhaust | Mm | 1.2 +0.1 |
| Ø Valve seat | | |
| Valve seat surface: Outside dia. inlet | Mm | 27.7 +0.1 |
| Valve seat surface: Outside dia. exhaust | Mm | 26.6 +0.1 |
CYLINDER HEAD WITH VALVE SEAT COVER N54 B30-SPECIFICATION
11 21 Crankshaft And Bearings N54 B30
| Ground sizes of main bearing journals | | Main bearing journal |
|---|
| Original (designation S1) | Mm | 55.998...55.993 |
| Original (designation S2) | Mm | 55.992...55.987 |
| Original (designation S3) | Mm | 55.986...55.981 |
| Crankshaft bearing clearance, radial | Mm | 0.020...0.046 |
| Max. permitted runout at center crankshaft journal | Mm | 0.15 |
CRANKSHAFT AND BEARINGS N54 B30-SPECIFICATION
| Ground sizes of main bearing journals | | Guide bearing journal |
|---|
| Original (designation S1) | Mm | 64.998...64.993 |
| Original (designation S2) | Mm | 64.992...64.987 |
| Original (designation S3) | Mm | 64.986...64.981 |
| Crankshaft bearing clearance, radial | Mm | 0.020...0.046 |
| Max. permitted runout at center crankshaft journal | Mm | 0.15 |
CRANKSHAFT AND BEARINGS N54 B30-SPECIFICATION
| Grinding stages, crankshaft guide bearing |
|---|
| Standard | Mm | 24.0 F8 |
| Size 1 | Mm | 24.2 F8 |
| Size 2 | Mm | 24.4 F8 |
| Crankshaft axial play | Mm | 0.060...0.250 |
CRANKSHAFT AND BEARINGS N54 B30-SPECIFICATION
| Ground sizes of conrod bearing journals |
|---|
| Standard | Mm | 50.00 -0.007 -0.027 |
| Radial conrod bearing play | Mm | 0.025...0.070 |
CRANKSHAFT AND BEARINGS N54 B30-SPECIFICATION
11 24 Connecting Rods And Bearings N54 B30
| Ø Large connecting rod eye (without bearing) | Mm | 53.600 +0.016 |
|---|
| Conrod bushing: Inside diameter | Mm | 22 +0.013 +0.004 |
| Permissible total deviation of connecting rods in one engine (without bearing shells) | G | ± 5 |
CONNECTING RODS AND BEARINGS N54 B30-SPECIFICATION
11 25 Pistons with Rings And Pins N54 B30
| Piston and pin are paired to each other - replace together only. |
|---|
| Measuring point "A" (position) | Mm | 15 |
| Piston diameter at measuring point "A" | | |
| Original (new dimension) | Mm | 83.967 +0.004 -0.009 |
| Repair stage (new dimension) | Mm | % |
| Oversize (new dimension) | Mm | 84.217 +0.004 -0.009 |
| Piston installation clearance (piston new) | Mm | 0.000...0.034 |
| Piston installation clearance (piston worn) | Mm | 0.020...0.047 |
| Permissible total wear tolerance between piston and cylinder (engine operated) | Mm | 0.15 |
PISTONS WITH RINGS AND PINS N54 B30-SPECIFICATION
| 1st groove |
|---|
| End clearance | Mm | 0.18...0.33 |
| Axial play | Mm | 0.020...0.060 |
| 2nd groove |
| End clearance | Mm | 0.30...0.50 |
| Axial play | Mm | 0.020...0.060 |
| 3rd groove |
| End clearance | Mm | Cannot be measured |
| Axial play | Mm | Cannot be measured |
PISTONS WITH RINGS AND PINS N54 B30-SPECIFICATION
11 31 Camshaft N54 B30
| Guide bearing (width) | Mm | 20.000 +0.052 |
|---|
| Radial runout | Mm | 0.054...0.099 |
| Axial play | Mm | 0.02... 0.162 |
CAMSHAFT N54 B30-SPECIFICATION
11 34 Valves With Springs N54 B30
| Plate dia. |
|---|
| Inlet | Mm | 31.4 ± 0.05 |
| Exhaust | | 28.0 ± 0.1 |
| Stem Ø | | |
| Inlet | Mm | 5.0 -0.1 -0.06 |
| Exhaust | Mm | 6.0 -0.1 -0.06 |
VALVES WITH SPRINGS N54 B30-SPECIFICATION
11 40 Oil Supply E71/N54 B30
| Oil grades and consumption |
|---|
| Filling capacity, engine oil change with oil filter element | Liters | 6.50 |
OIL SUPPLY E71/N54 B30-SPECIFICATION
11 41 Oil Pump With Strainer And Drive N54 B30
| Oil pressure at idle speed with engine at operating temperature | Min bar | 1.5 |
|---|
| Control pressure with engine at operating temperature | Bar | 4.0...6.0 |
OIL PUMP WITH STRAINER AND DRIVE N54 B30-SPECIFICATION
