Duratec ST 2.0L Engine Specifications

            0

Engine specifications


Name2.0 l DOHC 16V
Engine managementEEC V/SEFI
Firing 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

Motor oil


Viscosity/outdoor temperatureNameSpecification
Recommended engine oil
SAE 5W-20 / from -30°C and below to +40°C and aboveSAE 5W-20 motor oil for gasoline engines, certified by the American Petroleum Institute (API)ILSAC GF-3 AND WSS-M2C153-H
SAE 5W-20 / from -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, engine oils meeting API SH/EC, ACEA A2/B2 or ACEA A3/B3 B specifications may also be used.

Filling volumes


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

Lubricants, working fluids, sealants and adhesives


PositionSpecification
Sealant for camshaft bearing capsWSK-M2G348-A5
Cylinder Block Mating Surface Sealant (Hylosil 502)WSK-M4G320-A
Cylinder Block Mating Surface Sealant (Loctite Ultrablack) (Alternative)WSE-M4G320-A2
Crankshaft Position Sensor SealantESW-1C155-A
Crankshaft Position Sensor Sealant (Alternative)WSD-M1C-226-A
Oil pan sealantWSE-M4G323-A6
Thread locking compoundSDM-M4G9107-A
Spark Plug Thread Grease (Never Seeze)WSD-M13P8-A1
Grease for O-rings of injectorsWSEM-2C903-A1
Silicone grease for spark plug connector sealsA696-M1C171-AA
High temperature grease for clutch disc splinesESD-MC220-A



Namemm
Cylinder diameter, class 1.84.800 - 84.810
Cylinder diameter, class 2.84.810 - 84.820
Cylinder diameter, class 3.84.820 - 84.830
Inner diameter of main bearing shell, installed58.011 - 58.038
Inner diameter of main bearing shell, installed (main bearing shells with stepped dimensions)58.008 - 58.031
Radial clearance of main bearing0.011 - 0.058
Radial clearance of main bearing (main bearing shells with stepped dimensions)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
Clearances in piston ring joints (in installed condition)
- upper compression ring0.300 - 0.500
- lower compression ring0.300 - 0.500
- oil scraper ring0.400 - 1.400

Position of 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 positioned 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

Spacers (gaskets) for the cylinder block and lower crankcase section

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

Connecting rod


Connecting rodmm
Connecting rod lower head bore diameter49.890 - 49.910
Connecting rod upper head bore diameter19.951 - 19.981
Inner diameter of connecting rod bearing shells when installed46.926 - 46.960
Radial clearance in connecting rod bearing0.016 - 0.070
Axial clearance in connecting rod bearing0.090 - 0.320



Namemm
Piston pin length55.800 - 56.200
Piston pin diameter, white color19.997 - 20.000
Piston pin diameter, red color20.625 - 20.628
Piston pin clearance in piston0.010 - 0.019
Radial clearance between piston pin and connecting rod0.016 - 0.049

Camshaft


Namemm
Bearing journal diameter25.960 - 25.980
Radial clearance in the camshaft bearing0.020 - 0.070
Axial clearance of the camshaft0.080 - 0.220

Valves


Valvesmm
Radial clearance between the intake valve stem and the valve guide bushing0.017 - 0.064
Radial clearance between the exhaust valve stem and the valve guide bushing0.017 - 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 non-flatness (mating surface)0.1 mm
Height of mating surface1.76 mm - 2.12 mm
Roughness of the 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

Tightening torque specifications


NameNmpound-footpound-inch
Hose clamps4-35
Intake Manifold Studs5-44
Intake Manifold Bolts and Nuts1813-
Heat shield for exhaust manifold10-89
Exhaust manifold studs5-44
Exhaust manifold nuts1612-
Exhaust manifold bolts1813-
Catalytic converter to exhaust manifold4835-
Catalytic converter for exhaust system4735-
Generator to bracket2518-
Upper bolts securing the generator bracket to the cylinder block2518-
Lower bolts securing the generator bracket to the cylinder block6548-
Gearbox Flange Bolts4735-
Starter to gearbox3526-
Flywheel bolts11283-
Clutch pressure plate2921-
Engine roll limiter to gearbox4835-
Engine tilt limiter to subframe4835-
Rear engine mount to body4835-
Rear engine mount (nut on gearbox mount 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 plugs1511-
Timing belt tensioner2518-
Camshaft pulley6850-
VCT camshaft unit12089-
VCT camshaft unit plug connector3825-
Upper valve timing belt cover8-71
Bracket ignition coil (EI) to 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 relay2720-
Cylinder Block Oil Gallery Plugs2317-
Bracket heater pipe to oil pan10-89
Connection of the oil pan to the lower section of the crankcasea)--
Lower section of the crankcase to the cylinder block3022-
Oil pump118-
Oil inlet pipe to oil pump10-89
Main bearing cap boltsa)--
Connecting rod bearing cap boltsa)--
Coolant pump2015-
Crankshaft Rear Oil Seal Holder2015-
Intermediate pulley of the drive belt4030-
Engine Crankcase Ventilation Pipe Bracket2317-
Crankcase ventilation10-89
Coolant pump pulley2418-
Crankshaft Belt Pulley11585-
Crankshaft Position Sensor Bracket2115-
Crankshaft Position Sensor to Bracket8-71
Intermediate timing belt pulley3825-
Knock sensor2015-

a = Refer to the procedure presented in this section







Link to this page in different formats
HTMLTextBB Code


Visitor comments


No comments yet





Focus 2 
Focus Turnier 1 
Focus 1