GENERAL SPECIFICATIONS
| Item | Specification |
|---|---|
| Lubricants and Sealants | |
| Motorcraft SAE 5W-20 Premium Synthetic Blend Motor Oil XO-5W20-QSP (in Canada Motorcraft SAE 5W-20 Super Premium Motor Oil CXO-5W20-LSP12) or equivalent | WSS-M2C930-A |
| Motorcraft Metal Surface Cleaner ZC-21 | WSE-M5B392-A |
| Silicone Gasket and Sealant TA-30 | WSE-M4G323-A4 |
| Silicone Brake Caliper Grease and Dielectric Compound XG-3-A | ESE-M1C171-A |
| Engine | |
| Displacement | 3.0L (4V) (182 CID) |
| No. cylinders | 6 |
| Bore/stroke | 89.0 x 79.5 (3.5 x 3.13 in) |
| Fire order | 1-4-2-5-3-6 |
| Oil pressure (Minimum at 1,500 RPM with engine warmed up after 10 minutes of idling) | 76kPa(11 psi) |
| Spark plug | AGSF-32M Gap = 1.30-1.40 (0.052-0.056 inch) |
| Cylinder Head and Valve Train | |
| Cylinder head gasket surface flatness | |
| Combustion chamber volume | 52 cc (3.17 CI) |
| Valve arrangement (front to rear) | LH intake I-I-I-I-I-I LH exhaust E-E-E-E-E-E RH intake I-I-I-I-I-I RH exhaust E-E-E-E-E-E |
| Valve guide bore diameter | 6.015-6.044 mm (0.236-0.237 in) |
| Valve stem diameter - intake | 5.975-5.995 mm (0.2350-0.2358 in) |
| Valve stem diameter - exhaust | 5.950-5.970 mm (0.2343-0.2350 in) |
| Valve stem-to-guide clearance - intake | 0.019-0.069 mm (0.0007-0.0027 in) |
| Valve stem-to-guide clearance - exhaust | 0.045-0.094 mm (0.0017-0.037 in) |
| Valve head diameter - intake | 35 mm (1.38 in) |
| Valve head diameter - exhaust | 30 mm (1.18 in) |
| Valve head diameter (intake) - gauge diameter | 33.5 mm (1.3189 in) |
| Valve head diameter (exhaust) - gauge diameter | 28.0 mm (1.10236 in) |
| Valve face runout | 0.05 mm (0.001 in) |
| Valve face angle | 45.5 degrees |
| Valve seat width - intake | 1.1-1.4 mm (0.043-0.055 in) |
| Valve seat width - exhaust | 1.4-1.7 mm (0.055-0.066 in) |
| Valve seat runout | 0.04 mm (0.001 in) |
| Valve seat angle | 44.75 degrees |
| Valve spring free length (approx.) | 46.6 mm (1.84 in) |
| Valve spring squareness | 2.5% |
| Valve spring compression pressure (N @ spec. length) | 693 N @ 30.09 mm (156 lbs @ 1.18 in) |
| Valve spring installed height (N @ spec. length) | 39.89 mm (1.57 in) |
| Valve spring installed pressure | 240 N @ 39.89 mm (53.95 lbs @ 1.57 in) |
| Valve spring installed pressure - service limit | 10% force loss @ specified height |
| Roller follower ratio @ max. lift | 2.0:1 |
| Hydraulic Lash Adjuster | |
| Diameter (standard) | 16-15.988 mm (0.6290-0.6294 in) |
| Clearance to bore | 0.018-0.069 mm (0.0007-0.0027 in) |
| Hydraulic leakdown rate | 5-25 seconds |
| Collapsed lash adjuster gap | 0.50-1.11 mm (0.019-0.043 in) |
| Camshaft | |
| Theoretical valve lift @ 0 lash | 9.80 mm (0.388 in) |
| Lobe lift | 4.80 mm (0.189 in) |
| Allowable lobe lift loss | 0.76 mm (0.03 in) |
| Journal diameter (all) | 26.962-26.936 mm (1.061-1.060 in) |
| Camshaft journal bore inside diameter | 27.012-26.987 mm (1.063-1.062 in) |
| Camshaft journal-to-bearing clearance - standard | 0.025-0.076 mm (0.001-0.0029 in) |
| Camshaft journal-to-bearing clearance - service limit | 0.121 mm (0.0047 in) |
| Runout | |
| End play - service limit | 0.190 mm (0.00748 in) |
| Cylinder Block | |
| Cylinder bore diameter - grade 1 | 89.000-89.010 mm (3.50393-3.504323 in) |
| Cylinder bore diameter - grade 2 | 89.010-89.020 mm (3.504323-3.504717 in) |
| Cylinder bore diameter - grade 3 | 89.020-82.030 mm (3.504717-3.50511 in) |
| Cylinder bore maximum taper | 0.020 mm (0.0008 in) |
| Cylinder bore maximum out-of-round | 0.015 mm (0.0005 in) |
| Cylinder bore maximum out-of-round - service limit | 0.020 mm (0.0007 in) |
| Main bearing bore inside diameter | 67.998-68.022 mm (2.677-2.6780 in) |
| Head gasket surface flatness | |
| Crankshaft | |
| Main bearing journal diameter | 62.968-62.992 mm (2.467-2.479 in) |
| Main bearing journal maximum taper | 0.008 mm (0.0003 in) |
| Main bearing journal maximum out-of-round | 0.006 mm (0.0002 in) |
| Main bearing journal-to-cylinder block clearance | 0.024-0.072 mm (0.0009-0.003 in) |
| Connecting rod journal diameter | 49.969-49.991 mm (1.967-1.968 in) |
| Connecting rod journal maximum taper | 0.008 mm (0.0003 in) |
| Crankshaft maximum end play | 0.135-0.255 mm (0.005-0.010 in) |
| Piston and Connecting Rod | |
| Piston diameter - coated, grade 1 | 88.990-89.010 mm (3.5035-3.5043 in) |
| Piston diameter - coated, grade 2 | 88.998-89.022 mm (3.5039-3.5048 in) |
| Piston diameter - coated, grade 3 | 89.010-89.030 mm (3.5043-3.5051 in) |
| Piston diameter - uncoated, grade 1 | 88.970-88.980 mm (3.50275-3.50314 in) |
| Piston diameter - uncoated, grade 2 | 88.978-88.992 mm (3.50306-3.50362 in) |
| Piston diameter - uncoated, grade 3 | 89.010-89.030 mm (3.50432-3.50511 in) |
| Piston-to-cylinder bore clearance | 0.012 to 0.022 mm (0.0005-0.0009 in) |
| Piston ring end gap - compression (top, gauge diameter) (1) | 0.100-0.250 mm (0.0039-0.0098 in) |
| Piston ring end gap - compression (bottom, gauge diameter) | 0.27-0.42 mm (0.0106-0.0165 in) |
| Piston ring end gap - oil ring (steel rail, gauge diameter) | 0.15-0.65 mm (0.0059-0.0255 in) |
| Piston ring end gap - compression (top, service limit) | 0.50 mm (0.0196 in) max |
| Piston ring end gap - compression (bottom, service limit) | 0.65 mm (0.0255 in) max |
| Piston ring end gap - oil ring (steel rail, service limit) | 0.90 mm (0.0354 in) max |
| Piston ring groove width - compression (top) | 1.230-1.245 mm (0.0484-0.0490 in) |
| Piston ring groove width - compression (bottom) | 1.530-1.545 mm (0.0602-0.0608 in) |
| Piston ring groove width - oil ring | 3.030-3.055 mm (0.1192-0.0120 in) |
| Piston ring width | |
| Piston ring-to-groove clearance | |
| Piston pin bore diameter | 21.008-21.012 mm (0.8270-0.8272 in) |
| Piston pin diameter | 21.011-21.013 mm (0.8271-0.8273 in) |
| Piston pin length | 60.51-60.08 mm (2.382-2.365 in) |
| Piston pin-to-piston fit | 0.002 to 0.009 mm (0.00007-0.0003 in) |
| Piston-to-connecting rod clearance | |
| Connecting rod-to-pin clearance - standard | 0.004-0.02 mm (0.0001-0.0007 in) |
| Connecting rod-to-pin clearance - service limit | 0.035 mm (0.0013 in) |
| Connecting rod pin bore diameter | 21.017-21.031 mm (0.827-0.828 in) |
| Connecting rod length (center-to-center) | 138.06-138.14 mm (5.435-5.38 in) |
| Connecting rod maximum allowed bend | 0.038 mm per 25 (0.0014 per 0.984 in) |
| Connecting rod maximum allowed twist | 0.050 mm per 25 (0.0019 per 0.984 in) |
| Connecting rod bearing bore diameter | 53.015-53.035 mm (2.0872-2.0879 in) |
| Connecting rod bearing-to-crankshaft clearance | 0.028-0.066 mm (0.001-0.0025 in) |
| Connecting rod side clearance | 0.100-0.30 mm (0.0039-0.0118 in) |
| (1) Specification 82.4 mm (3.2441 in) diameter gauge | |
| (1) | Specification 82.4 mm (3.2441 in) diameter gauge |
GENERAL SPECIFICATIONS
TORQUE SPECIFICATION
| Description | Nm | Lb-ft | Lb-in |
|---|---|---|---|
| Accessory drive belt tensioner bolt | 45 | 33 | |
| Accessory drive belt idler pulley bolt | 25 | 18 | |
| Accelerator cable snow shield bolts | 10 | 89 | |
| Accelerator cable bracket bolts | 10 | 89 | |
| Air conditioning compressor bolts | 25 | 18 | |
| Block heater | 14 | 10 | |
| Camshaft journal cap bolts | 10 | 89 | |
| Camshaft oil seal retainer bolts | 10 | 89 | |
| Camshaft position (CMP) sensor bolt | 10 | 89 | |
| Coolant bypass tube bolts | 10 | 89 | |
| Coolant pump belt shield nuts | 6 | 53 | |
| Coolant pump bolts | 10 | 89 | |
| Crankshaft position (CKP) sensor bolt | 10 | 89 | |
| Crankshaft damper bolt (1) | |||
| Crossbrace bolts and nut | 90 | 66 | |
| Crankcase cover bolts | 10 | 89 | |
| Cylinder head bolts (1) | |||
| Exhaust gas recirculation (EGR) tube nuts | 40 | 30 | |
| EGR vacuum regulator stud bolt nut | 6 | 53 | |
| Engine front cover bolts and studs (1) | |||
| Engine lifting eye bolt | 112 | 83 | |
| Engine support insulator bracket bolt | 90 | 66 | |
| Engine support insulator bracket nuts | 55 | 41 | |
| Engine support insulator-to-frame bolts | 55 | 41 | |
| Exhaust manifold nuts | 20 | 15 | |
| Flexplate bolts | 80 | 59 | |
| Front splash shield bolts | 7 | 62 | |
| Fuel charging harness nut | 6 | 53 | |
| Fuel rail bolts | 10 | 89 | |
| Ground strap bolt | 10 | 89 | |
| Halfshaft bracket bolts | 48 | 35 | |
| Ignition coil-on-plug bolts | 6 | 53 | |
| Knock sensor (KS) bolt | 25 | 18 | |
| LH transaxle support insulator through bolt | 115 | 85 | |
| Lower intake manifold bolts | 10 | 89 | |
| Oil cooler (if equipped) | 58 | 43 | |
| Oil level indicator and tube stud bolt | 10 | 89 | |
| Oil pan baffle nuts (1) | |||
| Oil pan bolts and studs | 25 | 18 | |
| Oil pan-to-transaxle bolts | 40 | 30 | |
| Oil pressure sensor | 14 | 10 | |
| Oil pump bolts | 10 | 89 | |
| Oil pump screen and pickup tube bolts and nut (1) | |||
| Oil separator bolts | 10 | 89 | |
| Output shaft speed (OSS) sensor bolt | 13 | 10 | |
| Power steering pump bolts | 25 | 18 | |
| Power steering pump pulley nut | 49 | 36 | |
| Power steering pressure (PSP) tube bracket nut | 25 | 18 | |
| Power distribution box cable nuts | 12 | 9 | |
| RH transaxle support insulator through bolt | 90 | 66 | |
| RH transaxle support insulator bracket nuts and bolt | 90 | 66 | |
| Rear transaxle support insulator through bolt | 113 | 83 | |
| RH radio ignition interference capacitor nut | 6 | 53 | |
| Shifter cable bracket bolts | 19 | 14 | |
| Spark plugs | 15 | 11 | |
| Starter motor ground cable bolt | 25 | 18 | |
| Starter cable positive nut | 12 | 9 | |
| Transfer case vent tube bolt | 14 | 10 | |
| Timing chain guide bolts | 25 | 18 | |
| Timing chain tensioner bolts | 25 | 18 | |
| Torque converter-to-flexplate nuts | 40 | 30 | |
| Transaxle-to-engine bolts | 40 | 30 | |
| Transaxle-to-oil pan bracket bolt | 25 | 18 | |
| Upper intake manifold bolts | 10 | 89 | |
| Valve cover bolts and stud bolts | 10 | 89 | |
| Wiring harness bulkhead connector bolt | 10 | 89 | |
| Wiring harness shield-to-valve cover stud bolt nuts | 6 | 53 | |
| Wiring harness bracket-to-valve cover stud bolt nut | 10 | 89 | |
| (1) Multiple step sequence. Refer to the procedure in this article. | |||
| (1) | Multiple step sequence. Refer to the procedure in this article. |
TORQUE SPECIFICATION
The 3.0L Duratec is a 4-valve-per-cylinder, dual overhead camshaft engine. The engine uses a distributorless ignition system. The cylinder block is a 2-piece design with the upper portion housing the cylinders, and a separate lower cylinder block containing the main bearing caps. Both sections are made of aluminum, with inserts for the bearing areas and caps. An aluminum oil pan bolts to the bottom of the lower cylinder block and to the transaxle to provide greater strength.
The camshafts are mounted in the cylinder heads and act against a roller follower to open and close the valves. A hydraulic lash adjuster is located on one side of the roller follower and the valve tip on the opposite end. The camshafts are driven off the front of each cylinder head by 2 chains (one each side). Both of the chains are driven by sprockets that are located on the crankshaft, just in front of the oil pump.
For basic engine mechanical concerns, refer to ENGINE SYSTEM-GENERAL INFORMATION. For driveability concerns, refer to INTRODUCTION - GASOLINE article.
Scheme 210
Scheme 211
Scheme 212
See also:
• JACKING AND LIFTING