11 00 Engine In General N63 B44
| Cylinder | | 8 |
|---|
| Bore | Mm | 89 |
| Stroke | Mm | 88.3 |
| Effective displacement | Cm 3 | 4389 |
| Compression ratio | 1 | 10.0 |
| Max. permissible engine speed | RPM | 7000 |
| Permissible constant speed | RPM | 6550 |
| Compression pressure: Minimum and maximum values. | | 14...16 |
| Compression pressure: Maximum deviation of all cylinders to each other. | Bar | 2 |
11 11 Engine Block, Cylinder Crankcase N63 B44
| Bore Ø stage 0 (1) | Mm | 89.000 +0.014 |
|---|
| Bore Ø stage 00 (1) | Mm | 89.250 +0.014 |
| Bore Ø stage 1 (1) | Mm | 89.500 +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 - TECHNICAL DATA
11 12 Cylinder Head With Cover N63 B44
| Cylinder head height: Original dimension | Mm | 134.00 ± 0.05 |
|---|
| Machining limit | Mm | 133.70 ± 0.05 |
| Valve guides are not available as replacement parts. | | |
| Inside diameter of installed valve guide | | |
| Original inlet valve | Mm | 6.0 +0.012 |
| Original exhaust valve | Mm | 6.0 +0.012 |
| Tilt clearance, maximum (wear between valve and valve guide) | Mm | 0.06...0.112 |
| Bearing of camshaft | | |
| Guide bearing (width) | Mm | 13.993... 14.035 |
CYLINDER HEAD WITH COVER - TECHNICAL DATA
11 12 Cylinder Head With Valve Seat Cover N63 B44
| Valve seat angle | ° | 45 |
|---|
| Correction angle: outer | ° | 15 |
| Correction angle: inner | ° | 70 |
| Valve seat width: Inlet | Mm | 0.9 +0.1 |
| Valve seat width: Exhaust | Mm | 1.15 +0.1 |
| Ø Valve seat | | |
| Valve seat surface: Outside dia. inlet | Mm | 31.6 +0.1 |
| Valve seat surface: Outside dia. exhaust | Mm | 27.6 +0.1 |
CYLINDER HEAD WITH VALVE SEAT COVER - TECHNICAL DATA
11 21 Crankshaft And Bearings N63 B44
| Ground sizes of main bearing journals | | Bearing journal 1 |
|---|
| Original (designation S1) | Mm | 64.974... 64.980 |
| Original (designation S2) | Mm | 64.967... 64.973 |
| Original (designation S3) | Mm | 64.961... 64.966 |
| Grinding stage 1 (designation B1) | Mm | 64.724... 64.730 |
| Grinding stage 1 (designation B2) | Mm | 64.717... 64.723 |
| Grinding stage 1 (designation B3) | Mm | 64.711... 64.716 |
| Grinding stage 2 (designation C1) | Mm | 64.474... 64.480 |
| Grinding stage 2 (designation C2) | Mm | 64.467... 64.473 |
| Grinding stage 2 (designation C3) | Mm | 64.461... 64.466 |
| Crankshaft bearing clearance, radial | Mm | 0.020... 0.046 |
| Max. permitted runout at center crankshaft journal | Mm | 0.15 |
CRANKSHAFT AND BEARINGS - TECHNICAL DATA
| Ground sizes of main bearing journals | | Bearing journal 2-5 |
|---|
| Original (designation S1) | Mm | 64.984... 64.990 |
| Original (designation S2) | Mm | 64.977... 64.983 |
| Original (designation S3) | Mm | 64.971... 64.976 |
| Grinding stage 1 (designation B1) | Mm | 64.734... 64.740 |
| Grinding stage 1 (designation B2) | Mm | 64.727... 64.733 |
| Grinding stage 1 (designation B3) | Mm | 64.721... 64.726 |
| Grinding stage 2 (designation C1) | Mm | 64.484... 64.490 |
| Grinding stage 2 (designation C2) | Mm | 64.477... 64.483 |
| Grinding stage 2 (designation C3) | Mm | 64.471... 64.476 |
| Crankshaft bearing clearance, radial | Mm | 0.020... 0.046 |
| Max. permitted runout at center crankshaft journal | Mm | 0.15 |
CRANKSHAFT AND BEARINGS - TECHNICAL DATA
| Grinding stages, crankshaft guide bearing |
|---|
| Standard | Mm | 28 +0.053 +0.020 |
| Size 1 | Mm | 28.2 +0.053 0.020 |
| Size 2 | Mm | 28.4 +0.053 +0.020 |
| Crankshaft axial play | Mm | 0.080... 0.246 |
| Coefficient of friction - crankshaft | Nm | MAX 5 |
CRANKSHAFT AND BEARINGS - TECHNICAL DATA
| Ground sizes of conrod bearing journals |
|---|
| Standard | Mm | 53.971...53.990 |
| Size 1 | Mm | 53.721...53.740 |
| Size 1 | Mm | 53.471...53.490 |
| Radial conrod bearing play | Mm | 0.025... 0.070 |
CRANKSHAFT AND BEARINGS - TECHNICAL DATA
11 24 Connecting Rods And Bearings N63 B44
| Ø Large connecting rod eye (without bearing) | Mm | 57.600 +0.016 |
|---|
| Conrod bushing: Inside diameter | Mm | 22.000 +0.016 +0.008 |
| Connecting rod bearing, installation clearance | Mm | |
| Permissible total deviation of connecting rods in one engine (without bearing shells) | G | ± 2 |
CONNECTING RODS AND BEARINGS - TECHNICAL DATA
11 25 Pistons With Rings And Pins N63 B44
| Piston and pin are paired to each other - replace together only. | | |
|---|
| Measuring point "A" (position) | Mm | 10 |
| Piston diameter at measuring point "A" | | |
| Original (new dimension) | Mm | 88.985 +0.014 -0.014 |
| Repair stage (0.08) | Mm | 89.065 +0.014 -0.014 |
| Oversize (0.25) | Mm | 89.235 +0.014 -0.014 |
| Oversize (0.50) | Mm | 89.485 +0.014 -0.014 |
| 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 - TECHNICAL DATA
| 1st groove |
|---|
| End clearance | Mm | 0.15...0.30 |
| Axial play | Mm | 0.020...0.060 |
| 2nd groove |
| End clearance | Mm | 0.30...0.50 |
| Axial play | Mm | 0.015...0.060 |
| 3rd groove |
| End clearance | Mm | Cannot be measured |
| Axial play | Mm | Cannot be measured |
PISTONS WITH RINGS AND PINS - TECHNICAL DATA
11 31 Camshaft N63 B44
| Guide bearing (width) | Mm | 14.165...14.207 |
|---|
| Radial runout | Mm | 0.10... 0.050 |
| Axial play | Mm | 0.022... 0.107 |
CAMSHAFT - TECHNICAL DATA
11 34 Valves With Springs N63 B44
| Plate dia. |
|---|
| Inlet | Mm | 33.2 ±0.1 |
| Exhaust | | 29 ± 0.1 |
| Stem Ø | | |
| Inlet | Mm | 5.94 +0 -0.04 |
| Exhaust | Mm | 5.92 +0.02 -0.02 |
VALVES WITH SPRINGS - TECHNICAL DATA
11 40 Oil Supply E71 / N63 B44
| Oil grades and consumption |
|---|
| Filling capacity, engine oil change with oil filter element | Liters | 8.50 |
| Oil quantity in oil sump | Liters | 8.00 |
| Oil quantity in oil filter element | Liters | 0.50 |
| Oil quantity in oil lines and in engine oil cooler | Liters | 1.20 |
OIL SUPPLY - TECHNICAL DATA
11 41 Oil Pump With Strainer And Drive N63 B44
| 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 - TECHNICAL DATA
