Duratec ST 2.0L Engine Specifications

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Engine Specifications


Name2.0 l DOHC 16V
Engine managementEEC V/SEFI
Ignition order1-3-4-2
Cylinder diameter84.8 mm
piston stroke88.0 mm
Number of main bearings5
Working volume, cm31,988
Compression ratio10.2:1
Maximum engine power170 HP
Maximum engine crankshaft speed7,000 rpm
Maximum engine torque at 5,500 rpm198 lb-ft

Engine oil


Viscosity / outside temperatureNameSpecification
Recommended engine oil
SAE 5W-20 / -30°C and below to +40°C and aboveSAE 5W-20 gasoline engine oil certified by the American Petroleum Institute (API)ILSAC GF-3 AND WSS-M2C153-H
SAE 5W-20 / -30°C and below to +40°C and aboveFord Formula E Economy Engine OilACEA A1/B1 and WSS-M2C912-A1

If engine oils meeting this specification are not available, API SH/EC, ACEA A2/B2 or ACEA A3/B3 B specification engine oils can also be used.

Fill volumes


l
Engine oil, primary filling, including filter4.35
Engine oil when changing oil (including filter)4.25
Engine oil when changing oil (excluding filter)3.75

Lubricants, fluids, sealants and adhesives


PositionSpecification
Sealant for camshaft bearing capsWSK-M2G348-A5
Sealant for an interfaced surface of the block of cylinders (Hylosil 502)WSK-M4G320-A
Sealant for an interfaced surface of the block of cylinders (Loctite Ultrablack) (alternative)WSE-M4G320-A2
Sealant for crankshaft position sensorESW-1C155-A
Sealant for crankshaft position sensor (alternative)WSD-M1C-226-A
Oil sump sealantWSE-M4G323-A6
Thread locking compoundSDM-M4G9107-A
Spark Plug Thread Lubricant (Never Seeze)WSD-M13P8-A1
O-ring grease for injectorsWSEM-2C903-A1
Silicone grease for spark plug connector sealsA696-M1C171-AA
High temperature grease for clutch disc splinesESD-MC220-A



Namemm
Bore, class 1.84.800 - 84.810
Bore, class 2.84.810 - 84.820
Bore class 3.84.820 - 84.830
Main bearing shell inner diameter, installed58.011 - 58.038
Main bearing shell inner diameter, installed (stepped main bearing shells)58.008 - 58.031
Radial clearance of the main bearing0.011 - 0.058
Radial clearance of the main bearing (stepped main bearing shells)0.020 - 0.042
Main bearing bore diameter62.287 - 62.300

Pistons


Namemm
Piston diameter -class 184.770 - 84.780
Piston diameter -class 284.780 - 84.790
Piston diameter -class 384.790 - 84.800
Radial clearance of the piston in the engine cylinder0.010 - 0.030
Piston ring gaps (in installed condition)
- top compression ring0.300 - 0.500
- lower compression ring0.300 - 0.500
- oil scraper ring0.400 - 1.400

Position of the ring joints: The joints of the piston rings and the oil scraper ring elements must be evenly distributed around the circumference of the piston. The joints of the piston rings should be at an angle of 120 degrees to each other.

Crankshaft


Namemm
Main journal diameter57.980 - 58.000
Axial clearance in the main journal0.090 - 0.260
Crankpin diameter46.890 - 46.910

Distance elements (gaskets) cylinder block and lower crankcase

Namemm
Required spacer thickness (gaskets), if there is a gap between the cylinder block and the lower crankcase section:
0.26 mm - 0.50 mm0.25
0.51 mm - 0.75 mm0.50

Connecting rod


connecting rodmm
Connecting rod bore diameter49.890 - 49.910
Connecting rod bore diameter19.951 - 19.981
Inner Diameter of Connecting Rod Bearings in Installed State46.926 - 46.960
Radial clearance in connecting rod bearing0.016 - 0.070
Axial clearance in the connecting rod bearing0.090 - 0.320



Namemm
Piston pin length55.800 - 56.200
Piston pin diameter, white19.997 - 20.000
Piston pin diameter, red20.625 - 20.628
Piston pin clearance in the piston0.010 - 0.019
Radial clearance between piston pin and connecting rod0.016 - 0.049

Camshaft


Namemm
Bearing neck diameter25.960 - 25.980
Radial clearance in the camshaft bearing0.020 - 0.070
Camshaft axial clearance0.080 - 0.220

Valves


valvesmm
Radial clearance between intake valve stem and valve guide0.017 - 0.064
Radial clearance between exhaust valve stem and valve guide0.017 - 0.064
Valve clearance, intake valve (at 20°C±5°C)0.110 - 0.180
Valve clearance, exhaust valve (at 20°C±5°C)0.270 - 0.340

Cylinder head


cylinder head
Maximum flatness (mating surface)0.1mm
Mating surface height1.76 mm - 2.12 mm
Roughness of mating surface (base length 2.5 mm, vertical to the direction of the depressions)R3z = 6.0 µm
Oil pressure at 800 rpm - 850 rpm1.3 bar - 2.5 bar
Oil pressure at 4000 rpm3.7 bar - 5.5 bar

Torque Specifications


NameNmlb-ftlb-in
Hose clamps4-35
intake manifold studs5-44
Inlet manifold bolts and nuts1813-
Heat shield to exhaust manifold10-89
exhaust manifold studs5-44
exhaust manifold nuts1612-
exhaust manifold bolts1813-
Catalytic converter to exhaust manifold4835-
Catalytic Converter to Exhaust System4735-
Generator to bracket2518-
The top bolts of fastening of an arm of the generator to the block of cylinders2518-
Lower bolts of fastening of an arm of the generator to the block of cylinders6548-
Gearbox flange bolts4735-
Starter to gearbox3526-
flywheel bolts11283-
Clutch pressure plate2921-
Engine roll limiter to gearbox4835-
Engine roll limiter to subframe4835-
Rear engine mount to body4835-
Rear engine mount (nut on gearbox support bracket)13398-
Front engine mount to engine8059-
Front engine mount to body4835-
Power steering pump bracket4835-
cylinder heada)--
Camshaft bearing cap1511-
cylinder head covera)--
Spark plug1511-
Timing belt tensioner2518-
Camshaft Pulley6850-
Camshaft VCT block12089-
Camshaft VCT block connector3825-
Upper Timing Belt Cover8-71
Bracket ignition coil (EI) to the cylinder head2115-
thermostat housing2015-
fuel manifold10-89
Rear engine lifting eye2015-
Rear Engine Lift Eye Studs7-62
Front engine lifting eye3526-
Engine oil drain plug2518-
Oil pressure switch2720-
Cylinder Block Oil Gallery Plugs2317-
Bracket for heater pipe to oil sump10-89
Connection of the oil sump with the lower section of the crankcasea)--
The lower section of the crankcase to the cylinder block3022-
Oil pump118-
Inlet oil line to oil pump10-89
Main bearing cap boltsa)--
Connecting rod bearing cap boltsa)--
coolant pump2015-
Crankshaft rear oil seal holder2015-
Drive Belt Intermediate Pulley4030-
Crankcase breather bracket2317-
crankcase ventilation10-89
Coolant pump pulley2418-
crankshaft belt pulley11585-
Crankshaft Position Sensor Bracket2115-
Crankshaft position sensor to bracket8-71
Timing Belt Intermediate Pulley3825-
Knock sensor2015-

a = Refer to the procedure in this section







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