General information
| Type: | |
| - Before 2003 model year | V-shaped, 6-cylinder, 24-valve, displacement 2.5 l, supercharged, direct fuel injection, liquid-cooled, transversely mounted |
| - From model year 2003 | V-shaped, 6-cylinder 24-valve, displacement 2.5 l, with direct fuel injection, liquid-cooled, transversely located |
| Cylinder arrangement | 90 → V6, cylinder numbering from the front end of the engine |
| - Left row | Cylinders 1, 3 and 5 |
| - Right lane | Cylinders 2, 4 and 6 |
| Cylinder diameter (nominal) | 80 mm (3.15 inches) |
| piston stroke | 82.8 mm (3.26 inches) |
| Working volume | 2497 cm3 (152.371 inches3) |
| Operating procedure | 1-6-5-4-3-2 |
| Compression ratio | 10,5: 1 ± 0,5: 1 |
| Direction of rotation | Clockwise as viewed from the front of the engine |
| Max power | 130 kW (177 HP) at 6500 rpm |
| Max Torque: | 240.0 Nm (177 lb-ft) at 4000 rpm |
| Maximum motor shaft speed | |
| - In long mode | 6500 rpm |
| - Momentary mode | 6750 rpm |
| Idle speed | 750 rpm±50 rpm |
| Weight (with complete equipment, filled lubrication and cooling systems) | 154 kg (340 inches) |
| Dimensions (with installed equipment) | |
| - Length (nominal) | 770 mm (30.3 inches) |
| - Width (nominal) | 750 mm (29.5 inches) |
| - Height (nominal) | 750 mm (29.5 inches) |
| Valve drive | Lightweight, self-adjusting hydraulic tappets driven directly by camshafts |
| fuel injection system | |
| - Manufacturer - before 2003 model year | Siemens engine management system |
| - Manufacturer - from model year 2003 | Siemens engine management system |
| - Type - up to 2003 model year | Supercharged multiport injection controlled by the ECM, electro-mechanical injectors with dual jet directed to the back of the intake valves |
| - Manufacturer - from model year 2003 | Supercharged multiport injection controlled by the ECM, electro-mechanical injectors with a quadruple jet directed to the back of the intake valves |
| Intake manifold | Changeable geometry |
| Spark plug | |
| - Type | NLP 100290 |
| - Gap between electrodes | 1.0mm±0.05mm (0.039"±0.002") |
| Ignition coils | |
| - Manufacturer - before 2003 model year | BREMR |
| - Manufacturer - from model year 2003 | Champion BAE 403H |
| - Type - up to 2003 model year | 6 ignition coils (3 directly connected to candles, 3 installed at a distance) |
| - Manufacturer - from model year 2003 | 6 ignition coils linked to spark plugs |
| Fulfilled standards for the content of harmful substances in exhaust gases | ECD3 |
Block head
| Type | Aluminium alloy |
| Gas joint gasket * | Multilayer, steel |
| Block Head Deformation: | |
| - In the transverse direction | 0.025 mm (0.001 inch) |
| - In the longitudinal direction | 0.2mm (0.08 inch) |
| Block Head Height: | 118.95 - 119.05 mm (4.683 - 4.687 inches) |
| Height after re-treatment - minimum | 118.95 mm (4.683 inches) |
Cylinder block
| Type | Cast aluminum Cosworth with crankshaft bearing housing bolted to bottom of block |
| Type of cylinder liners | Wet, with lower ribs, mounted on a sliding fit in the lower part of the cylinder block |
| Cylinder liner diameter: | |
| - Class A with red marking | 80,000 - 80.015 mm (3.1496 - 3.1502 inches) |
| - Class B with blue markings | 80.015 - 80.030 mm (3.1502 - 3.1508 inches) |
Crankshaft
| Material / Type | Cast iron with spheroidal graphite, with cold-rolled dumbbells on all necks, except for the outer main |
| Axial clearance of the crankshaft | 0.10 - 0.30 mm (0.004 - 0.012 inches) |
| - Allowed without replacement | 0.40 mm (0.016 inch) |
| Main journal diameter | |
| - Class 1 | 67.743 - 67.749 mm (2.6670 - 2.6673 inches) |
| -- Class A (With green label) ** | |
| -- Class B (With yellow marking) ** | |
| -- Class C (With black marking) ** | |
| - Class 2 | 67.737 - 67.743 mm (2.6668 - 2.6670 inches) |
| -- Class A (With blue marking) ** | |
| -- Class B (With green label) ** | |
| -- Class C (With yellow marking) ** | |
| - Class 3 | 67.731 - 67.737 mm (2.6666 - 2.6668 inches) |
| -- Class A (With red marking) ** | |
| -- Class B (With blue marking) ** | |
| -- Class C (With green label) ** | |
| - Maximum deviation from roundness | 0.010 mm (0.0004 inch) |
| Main journal diameter | |
| - Class A | 71.600 - 71.593 mm (2.8189 - 2.8186 inches) |
| - Class B | 71.593 - 71.586 mm (2.8186 - 2.8183 inches) |
| - Class C | 71.586 - 71.579 mm (2.8183 - 2.8181 inches) |
| Diameter of connecting rod journals of the crankshaft | |
| - Class A | 54.049 - 54.055 mm (2.1279 - 2.1281 inches) |
| - Class B | 54.043 - 54.049 mm (2.1277 - 2.1279 inches) |
| - Class C | 54.037 - 54.043 mm (2.1274 - 2.1277 inches) |
| - Maximum deviation from round shape | 0.010 mm (0.0004 inch) |
| Diameter of connecting rod journals of the crankshaft | |
| - Class 7 | 57.677 - 57.671 mm (2.2707 - 2.2705 inches) |
| -- Class A (With green label) ** | |
| -- Class B (With blue marking) ** | |
| -- Class C (With red marking) * | |
| - Class 8 | 57.671 - 57.665 mm (2.2705 - 2.2703 inches) |
| -- Class A (With yellow marking) * | |
| -- Class B (With green label) * | |
| -- Class B (With blue marking) * | |
| - Class 9 | 57.665 - 57.659 mm (2.2703 - 2.2700 inches) |
| -- Class A (With black marking) * | |
| -- Class B (With yellow marking) * | |
| -- Class C (With green label) * |
* Crankpin classes
**Cylinder block / bearing diameter classes
Crankshaft main bearings
| Quantity | 4 |
| Material / Type | Glacier AS15 - oil grooves in upper bearing, connecting rod cap bearing - smooth |
| Clearance in bearings | 0.021 - 0.039 mm (0.0008 - 0.0015 inches) |
| Thrust washers | |
| - Type / location | Glacier AS15 - Thrust washer halves in the top and bottom of the rear main bearing, oil grooves in the top and bottom half of the bearing. |
| - Thickness of thrust washer halves | 2.61 - 2.65 mm (0.103 - 0.104 inches) |
| Thickness of bearing shells | |
| - With red marking | 1.930 - 1.927 mm (0.0760 - 0.0759 inches) |
| - With blue markings | 1.927 - 1.924 mm (0.0759 - 0.0757 inches) |
| - With green label | 1.924 - 1.921 mm (0.0757 - 0.0756 inches) |
| - With yellow marking | 1.921 - 1.918 mm (0.0756 - 0.0755 inches) |
| - With black marking | 1.918 - 1.915 mm (0.0755 - 0.0754 inches) |
Big end bearings
| Material / Type | Glacier AS15 - smooth top and bottom liners with locking tabs |
| Clearance in bearings | 0.022 - 0.040 mm (0.0009 - 0.0016 inches) |
| Crankshaft bearings | |
| - With red marking | 1.803 - 1.800 mm (0.0710 - 0.0709 inches) |
| - With blue markings | 1.800 - 1.797 mm (0.0709 - 0.0707 inches) |
| - With green label | 1.797 - 1.794 mm (0.0707 - 0.0706 inches) |
| - With yellow marking | 1.794 - 1.791 mm (0.0706 - 0.0705 inches) |
| - With black marking | 1.791 - 1.788 mm (0.0705 - 0.0704 inches) |
| Axial play of connecting rod bearing | 0.19 - 0.29 mm (0.007 - 0.011 inches) |
Connecting rods
| Type | Forged steel, H-profile, with horizontal bottom head split |
| Distance between the axes of the upper and lower heads | 151.31 - 151.41 mm (5.957 - 5.961 inches) |
Piston pins
| Type | Semi-floating type, with a ledge in the thrust part. Landing in the upper head of the connecting rod |
| Size groups | |
| - Diameter - With red marking | 17.997 - 18.000 mm (0.7085 - 0.7087 inches) |
| - Diameter - With green marking | 17.994 - 17.997 mm (0.7084 - 0.7085 inches) |
| - Length | 52.3 - 52.6 mm (2.059 - 2.071 inches) |
| - Clearance in the piston | 0.010 mm (0.0004 inch) |
Pistons
| Type | Aluminum alloy, tin plated, pin lug connection thermal expansion |
| Piston diameter (measured in a plane perpendicular to the axis of the piston pin at a distance of 10 mm (0.4 inch) from the bottom of the piston skirt | |
| - Class A | 79.965 - 79.980 mm (3.1482 - 3.1488 inches) |
| - Class B | 79.981 - 79.995 mm (3.1489 - 3.1494 inches) |
| Clearance in the cylinder at a distance of 20 mm (0.75 inch) from the edge of the cylinder | 0.034 - 0.035 mm (0.0013 - 0.0014 inches) |
| Maximum deviation from round shape | 0.3mm (0.012 inch) |
Piston rings
| Type: | |
| - Top compression ring | Chrome steel |
| - Bottom compression ring | Chrome cast iron |
| - Oil scraper ring | Top and bottom stainless steel collar with intermediate ring |
| Clearance between the new piston ring and the groove on the piston: | |
| - Top compression ring | 0.05 - 0.08 mm (0.0020 - 0.0031 inches) |
| - Bottom compression ring | 0.04 - 0.07 mm (0.0012 - 0.0024 inches) |
| - Oil scraper ring | 0.010 - 0.180 mm (0.0004 - 0.0071 inches) |
| The groove for the ring is located at 20 mm (0.75 inch) from the top of the piston | |
| - Top compression ring | 0.20 - 0.35 mm (0.008 - 0.0014 inches) |
| - Bottom compression ring | 0.28 - 0.45 mm (0.011 - 0.0018 inches) |
| - Oil scraper ring | 0.25 - 1.00 mm (0.010 - 0.039 inches) |
| Piston ring width: | |
| - Top compression ring | 3.1±0.15mm (0.122±0.006") |
| - Bottom compression ring | 3.15 - 3.45 mm (0.124 - 0.136 inches) |
| - Oil scraper ring | 2.286 - 2.438 mm (0.090 - 0.096 inches) |
Camshaft
| Type | Two camshafts per cylinder line, located in bearings, machined from one installation together with the block head. The magnetic marker for the position sensor is located on the left intake camshaft |
| Camshaft designation | |
| - Inlet valve | orange paint marking |
| - Exhaust valve | Blue paint marking |
| Bearings | Five bearings of each shaft |
| Drive unit | Toothed belt driven from crankshaft pulley to pulleys at front ends of intake camshafts and 2 short toothed belt drives from rear ends of intake camshafts to exhaust camshafts |
| Camshaft axial clearance | 0.06 - 0.19 mm (0.002 - 0.007 inches) |
| - Allowed without replacement | 0.3mm (0.012 inch) |
| Clearance in bearings | 0.025 - 0.059 mm (0.0010 - 0.0023 inches) |
| - Allowed without replacement | 0.1 mm (0.004 inch) |
Valve lifters
| Type | Hydraulic, self-adjusting, driven directly from the camshaft |
| Outer diameter of pushers | 32.959 - 32.975 mm (1.2976 - 1.2982 inches) |
Valve timing
| intake valves: | |
| - Opening: | 2°to TDC |
| - Closing | 54°after BDC |
| Exhaust valves: | |
| - Opening: | 50°to BDC |
| - Closing | 14°after TDC |
| Maximum valve lift: | |
| - intake valves | 8.2mm (0.32 inch) |
| - Exhaust valves | 8.8mm (0.35 inch) |
Valves
| Rod diameter: | |
| - intake valves | 5.952 - 5.967 mm (0.2343 - 0.2349 inches) |
| - Exhaust valves | 5.947 - 5.962 mm (0.2341 - 0.2347 inches) |
| Clearance valve stem - guide: | |
| intake valves | 0.033 - 0.063 mm (0.0013 - 0.0025 inches) |
| - Allowed without replacement | 0.07 mm (0.0028 inch) |
| exhaust valves | 0.038 - 0.078 mm (0.0015 - 0.0013 inches) |
| - Allowed without replacement | 0.11 mm (0.0043 inch) |
| Assembled Valve Stem Height | |
| - New | 38.93 - 39.84mm (1.533 - 1.569 inches) |
| - Allowed without replacement | 40.10 mm (1.579 inches) |
| Assembled Valve Guide Height | 6.0mm (0.24 inch) |
| Inner diameter of valve guides: | 6.000 - 6.025 mm (0.2362 - 0.2372 inches) |
| Plate diameter | |
| - intake valves | 31.4 - 31.6 mm (1.236 - 1.244 inches) |
| - Exhaust valves | 27.3 - 27.5 mm (1.075 - 1.083 inches) |
| Sealing cone width (chamfers) valve seats: | |
| - intake valves | 1.2 mm (0.05 inch) |
| - Exhaust valves | 1.6mm (0.06 inch) |
| Valve seat angle | |
| - intake valves | 45° |
| - Exhaust valves | 45° |
| Valve seat angle | |
| - intake valves | 45° |
| - Exhaust valves | 45° |
Valve springs
| Free Length | 47.6 mm (1.874 inches) |
| Assembled length | 37.0 mm (1.457 inches) |
| Load at assembled length | 210±13N |
| Load at the end of valve lift | 440±22 N |
Lubrication system
| Type | Wet sump with cast aluminum sump, full flow filtration |
| Oil pump | Crankshaft driven, injection molded housing |
| - Axial clearance of the outer rotor | 0.04 - 0.09 mm (0.0016 - 0.0035 inches) |
| - Axial clearance of the inner rotor | 0.04 - 0.09 mm (0.0016 - 0.0035 inches) |
| - Deviation from the vertical of the inner rotor | 0.05 - 0.13 mm (0.002 - 0.005 inches) |
| - Radial clearance between outer rotor and casing | 0.13 - 0.23 mm (0.0051 - 0.0091 inches) |
| - Clearance between rotor body and drive gear (pump not installed) | 0.15 - 0.25 mm (0.0059 - 0.0098 inches) |
| The length of the bypass valve spring in the free state | 38.90 mm (1.531 inches) |
| Oil filter | Full flow, with replaceable element |
| oil cooler | Included in the lubrication system in parallel |
| System pressure at idle (minimum) | 1.0 bar (14.5 psi2) |
| Pressure at 3000 rpm | 3.0 bar (43.5 psi2) |
| Relief valve opening pressure | 4.1 bar (59.5 psi2) |
| Oil pressure alarm trigger pressure | 0.3 - 0.5 bar (4.4 -7.3 psi2) |
New metal keys must be installed, which are supplied with the gasket.
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