MATERIAL SPECIFICATIONS
| Item | Specification | Fill Capacity |
|---|---|---|
| Motorcraft® High Performance Engine RTV Silicone TA-357 | WSEM4G323-A6 | |
| Motorcraft® Metal Surface Prep ZC-31-A | ||
| Motorcraft® SAE 5W-20 Premium Synthetic Blend Motor Oil XO-5W20-QSP (US); Motorcraft® SAE 5W-20 Super Premium Motor Oil CXO-5W20- LSP12 (Canada); or equivalent | WSSM2C930-A | 5.2L (5.5 qt) includes filter change |
| Motorcraft® Specialty Green Engine Coolant VC-10-A2 (US); CVC-10-A (Canada) | WSSM97B55-A | |
| Motorcraft® Silicone Gasket Remover ZC-30 | ||
| Thread Sealant with PTFE TA-24 | WSKM2G350-A2 | |
| Threadlock and Sealer TA-25 | WSKM2G351-A5 |
MATERIAL SPECIFICATIONS
GENERAL SPECIFICATIONS
| Item | Specification |
|---|---|
| Engine | |
| Displacement | 3.7L (4V) (226 CID) |
| No. cylinders | 6 |
| Bore/stroke | 95.5/86.7 mm (3.759/3.413 in) |
| Fire order | 1-4-2-5-3-6 |
| Oil pressure | Minimum 30 psi @ 1,500 rpm with engine at normal operating temperature |
| Compression ratio | 10.3:1 |
| Spark plug | AYSF-22FM Gap = 1.29-1.45 mm (0.051-0.057 in) |
| Engine weight (without accessory drive components) | 161 kg (355 lb) |
| Engine and transaxle assembly weight (without accessory drive components) | 260.8 kg (575 lb) |
| Cylinder Head and Valve Train | |
| Cylinder head gasket surface flatness | Flat within 0.08 mm (0.003 in) length end to end, area 150 mm (5.9 in) x 150 mm (5.9 in) (or full width) should be less than 0.05 mm (0.002 in) |
| Combustion chamber volume | 55.84 cc (3.41 CI) |
| Valve tappet clearance - intake | 0.15-0.25 mm (0.006-0.01 in) |
| Valve tappet clearance - exhaust | 0.360-0.460 mm (0.0142-0.0181 in) Engine must be at room temperature before measuring |
| Valve guide bore inner diameter | 5.519-5.549 mm (0.217-0.218 in) |
| Valve stem diameter - intake | 5.479-5.497 mm (0.2157-0.2164 in) |
| Valve stem diameter - exhaust | 5.466-5.484 mm (0.2151-0.2159 in) |
| Valve stem-to-guide clearance - intake | 0.022-0.070 mm (0.0008-0.0027 in) |
| Valve stem-to-guide clearance - exhaust | 0.035-0.083 mm (0.0013-0.032 in) |
| Valve head diameter - intake | 37.0 mm (1.46 in) |
| Valve head diameter - exhaust | 31.0 mm (1.22 in) |
| Valve face runout | 0.05 mm (0.0001 in) |
| Valve face angle | 44.5-45.5 degrees |
| Valve seat width - intake | 1.3-1.5 mm (0.051-0.059 in) |
| Valve seat width - exhaust | 1.4-1.6 mm (0.055-0.062 in) |
| Valve seat runout | 0.04 mm (0.0001 in) MAX |
| Valve seat angle | 44.5-45.5 degrees |
| Valve spring free length (approx.) | 48.4 mm (1.90 in) |
| Valve spring compression pressure (N @ spec. length) | 510 N @ 27.32 mm (115 lb @ 1.08 in) |
| Valve spring installed height | 37.0 mm (1.45 in) |
| Valve spring installed height pressure (N @ spec. length) | 235 N @ 37.0 mm (53 lb @ 1.45 in) |
| Valve spring installed pressure - service limit | 10% force loss @ specified height |
| Camshaft | |
| Theoretical valve lift @ 0 lash | 9.6798 mm (0.38 in) |
| Lobe lift - intake | 9.6798 mm (0.38 in) |
| Lobe lift - exhaust | 9.6798 mm (0.38 in) |
| Allowable lobe lift loss | 0.062 mm (0.0024 in) |
| Camshaft journal bore inside diameter - 1st journal | 31.0375-31.0625 mm (1.221-1.222 in) |
| Camshaft journal bore inside diameter - intermediate journals | 25.9875-26.0125 mm (1.023-1.024 in) |
| Camshaft bearing outside diameter - 1st journal | 30.993-31.013 mm (1.2202-1.2209 in) |
| Camshaft bearing outside diameter - intermediate journals | 25.937-25.963 mm (1.021-1.022 in) |
| Camshaft journal-to-bearing clearance, 1st journal - service limit | 0.070 mm (0.0027 in) MAX |
| Camshaft journal-to-bearing clearance, intermediate journals - service limit | 0.0755 mm (0.0029 in) MAX |
| Runout | 0.040 mm (0.0015 in) MAX |
| End play - standard | 0.032-0.170 mm (0.0012-0.0066 in) |
| End play - service limit | 0.190 mm (0.00748 in) MAX |
| Cylinder Block | |
| Cylinder bore diameter - grade 1 | 95.500-95.520 mm (3.760-3.761 in) |
| Main bearing bore inside diameter | 72.400-72.424 mm (2.8503-2.8513 in) |
| Head gasket surface flatness | Flat within 0.051 mm (0.0002 in) per one foot of tool length |
| Crankshaft | |
| Main bearing journal diameter | 67.5 mm (2.657 in) |
| Main bearing journal maximum taper | 0.004 mm (0.00015 in) |
| Main bearing journal maximum out-of-round | 0.006 mm (0.00023 in) |
| Main bearing journal-to-cylinder block clearance | 0.026-0.041 mm (0.0010-0.0016 in) |
| Connecting rod journal diameter | 55.983-56.003 mm (2.204-2.205 in) |
| Connecting rod journal maximum taper | 0.004 mm (0.00015 in) |
| Connecting rod journal maximum out-of-round | 0.006 mm (0.00023 in) |
| Crankshaft maximum end play | 0.051-0.291 mm (0.0020-0.0114 in) |
| Piston and Connecting Rod | |
| Piston diameter - single grade | 95.490-95.476 mm (3.7594-3.7589 in) |
| Piston-to-cylinder bore clearance | 0.010 to 0.044 mm (0.0003-0.0017 in) |
| Piston ring end gap - compression (top, gauge diameter) | 0.17-0.27 mm (0.0067-0.0106 in) |
| Piston ring end gap - compression (bottom, gauge diameter) | 0.30-0.55 mm (0.0118-0.0216 in) |
| Piston ring end gap - oil ring (steel rail, gauge diameter) | 0.15-0.45 mm (0.0059-0.0177 in) |
| Piston ring groove width - compression (top) | 1.230-1.25 mm (0.0484-0.0492 in) |
| Piston ring groove width - compression (bottom) | 1.530-1.55 mm (0.0602-0.0610 in) |
| Piston ring groove width - oil ring | 2.53-2.55 mm (0.0996-0.1003 in) |
| Piston ring width - upper compression ring | 1.17-1.19 mm (0.0460-0.0468 in) |
| Piston ring width - lower compression ring | 1.47-1.49 mm (0.0578-0.0586 in) |
| Piston ring-to-groove clearance (upper and lower compression rings) | 0.040-0.080 mm (0.0015-0.0031 in) |
| Piston pin bore diameter | 23.002-23.006 mm (0.9057-0.9062 in) |
| Piston pin diameter | 22.997-23.000 mm (0.9053-0.9055 in) |
| Piston pin length | 55.975 mm (2.203 in) |
| Piston pin-to-piston fit | 0.002 to 0.009 mm (0.00007-0.0003 in) |
| Piston-to-connecting rod clearance | 2.7 mm (0.1 in) |
| Connecting rod-to-pin clearance - standard | 0.007-0.022 mm (0.0002-0.0009 in) |
| Connecting rod pin bore diameter | 23.007-23.019 mm (0.905-0.906 in) |
| Connecting rod length (center-to-center) | 152.68 mm (6.01 in) |
| Connecting rod maximum allowed bend | 0.038 mm (0.0014 in) |
| Connecting rod maximum allowed twist | 0.050 mm (0.0019 in) |
| Connecting rod bearing bore diameter - grade 1 | 59.866-59.872 mm (2.3569-2.3571 in) |
| Connecting rod bearing bore diameter - grade 2 | 59.873-59.879 mm (2.3572-2.3574 in) |
| Connecting rod bearing bore diameter - grade 3 | 59.880-59.886 mm (2.3574-2.3577 in) |
| Connecting rod bearing-to-crankshaft clearance | 0.020-0.054 mm (0.0007-0.0021 in) |
| Connecting rod side clearance (assembled to crank) - standard | 0.175-0.425 mm (0.0068-0.0167 in) |
| Connecting rod side clearance (assembled to crank) - service limit | 0.175-0.425 mm (0.0068-0.0167 in) |
GENERAL SPECIFICATIONS
TORQUE SPECIFICATIONS
| Description | Nm | Lb-ft | Lb-in |
|---|---|---|---|
| A/C compressor bolts and nut | 25 | 18 | |
| A/C compressor stud | 9 | 80 | |
| A/C tube bracket bolt | 15 | 133 | |
| A/C tube nut | 15 | 133 | |
| A/C tube retaining clamp bolt | 9 | 80 | |
| A/C tube-to-condenser nut | 15 | 133 | |
| A/C tube-to-evaporator bolt | 8 | 71 | |
| Accessory drive belt tensioner bolts | 11 | 97 | |
| Ball joint nuts | 200 | 148 | |
| Block drain plug - RH | 40 | 30 | |
| Block drain plug - LH (1) | |||
| Block heater | 40 | 30 | |
| Camshaft bearing cap bolts (2) | |||
| Camshaft Position (CMP) sensor bolts | 10 | 89 | |
| Catalytic converter-to-halfshaft bracket bolts | 20 | 177 | |
| Catalytic converter nuts | 40 | 30 | |
| Connecting rod cap bolts (2) | |||
| Coolant pump bolts (2) | |||
| Crankcase rear seal retainer plate bolts (2) | |||
| Crankshaft Position (CKP) sensor bolt | 10 | 89 | |
| Crankshaft pulley bolt (2) | |||
| Cylinder head bolts (2) | |||
| Cylinder head M6 bolt | 10 | 89 | |
| Cylinder Head Temperature (CHT) sensor | 10 | 89 | |
| Driveshaft-to-Power Transfer Unit (PTU) bolts | 70 | 52 | |
| Engine cover stud | 6 | 53 | |
| Engine front cover bolts (2) | |||
| Engine lifting eye bolts | 24 | 18 | |
| Engine mount brace bolt and nut | 20 | 177 | |
| Engine mount bracket bolts (2) | |||
| Engine mount bracket-to-engine front cover bolts | 24 | 18 | |
| Engine mount studs (2) | |||
| Engine mount-to-engine nuts | 63 | 46 | |
| Engine mount-to-frame bolts | 90 | 66 | |
| Engine oil filter (3) | |||
| Engine Oil Pressure (EOP) switch | 18 | 159 | |
| Exhaust camshaft bolt (2) | |||
| Exhaust manifold heat shield bolts | 10 | 89 | |
| Exhaust manifold nuts (2) | |||
| Exhaust manifold studs | 12 | 106 | |
| Exhaust Y-pipe nuts | 40 | 30 | |
| Flexplate bolts | 80 | 59 | |
| Front engine roll restrictor-to-transaxle bolts | 90 | 66 | |
| Front halfshaft nut | 350 | 258 | |
| Fuel rail bolts | 10 | 89 | |
| Fuel tube bracket-to-upper intake manifold bolt | 6 | 53 | |
| Generator bolt and nut | 48 | 35 | |
| Generator B+ terminal nut | 17 | 150 | |
| Generator stud | 12 | 106 | |
| Ground cable-to-negative battery cable nut | 6 | 53 | |
| Ground cable bolt | 12 | 106 | |
| Ground wire-to-engine bolt | 10 | 89 | |
| Halfshaft support bracket bolts | 40 | 30 | |
| Halfshaft support bracket studs | 10 | 89 | |
| Heat shield nut and bolt | 10 | 89 | |
| Ignition coil-on-plug bolts | 7 | 62 | |
| Intermediate and halfshaft assembly nuts | 25 | 18 | |
| Intermediate steering shaft bolt | 23 | 17 | |
| Knock Sensor (KS) bolts | 20 | 177 | |
| Lower intake manifold bolts (2) | |||
| Main bearing bolts (2) | |||
| Main bearing cap support brace bolts (2) | |||
| Oil filter adapter bolts | 10 | 89 | |
| Oil pan bolts (2) | |||
| Oil pan drain plug | 27 | 20 | |
| Oil pan-to-transaxle bolts | 48 | 35 | |
| Oil pump bolts | 10 | 89 | |
| Oil pump screen and pickup tube bolts | 10 | 89 | |
| Positive battery cable power feed cable nut | 6 | 53 | |
| Power Steering Pressure (PSP) tube bracket-to-cylinder head bolt | 10 | 89 | |
| Power steering pump bolts | 25 | 18 | |
| PSP tube bracket-to-power steering pump bolt | 10 | 89 | |
| PSP tube bracket-to-steering gear bolt | 10 | 89 | |
| PSP tube bracket-to-valve cover stud bolt nut | 7 | 62 | |
| PSP tubes-to-power steering gear plate bolt | 25 | 18 | |
| PTU bolts | 90 | 66 | |
| PTU support bracket bolts | 70 | 52 | |
| RH brake hose bracket bolt | 30 | 22 | |
| Rear engine roll restrictor-to-transaxle bolts | 90 | 66 | |
| RH cylinder head ground wire bolt | 10 | 89 | |
| Secondary timing chain guide bolts | 10 | 89 | |
| Secondary timing chain tensioner bolts | 10 | 89 | |
| Spark plugs | 15 | 133 | |
| Stabilizer bar link nuts | 150 | 111 | |
| Starter bolt and stud bolt | 27 | 20 | |
| Starter B+ terminal nut | 12 | 106 | |
| Starter S-terminal nut | 5 | 44 | |
| Strut tower brace | 35 | 26 | |
| Subframe bracket bolts | 103 | 76 | |
| Subframe - front bolts | 200 | 148 | |
| Subframe - rear bolts | 150 | 111 | |
| Thermostat housing bolts | 10 | 89 | |
| Tie-rod end nuts | 150 | 111 | |
| Timing chain tensioner bolts | 10 | 89 | |
| Torque converter-to-flexplate bolts | 55 | 41 | |
| Transaxle support insulator bracket bolt | 55 | 41 | |
| Transaxle support insulator bracket nuts | 63 | 46 | |
| Transaxle support insulator through bolt and nut | 175 | 129 | |
| Transaxle-to-engine bolts | 48 | 35 | |
| Upper intake manifold bolts (2) | |||
| Upper intake manifold support bracket bolts | 10 | 89 | |
| Upper stabilizer bar link nuts | 55 | 41 | |
| Valve cover bolts and stud bolts (2) | |||
| Variable Camshaft Timing (VCT) bolt (2) | |||
| VCT housing bolts (2) | |||
| VCT solenoid bolts | 10 | 89 | |
| Wiring harness retainer bolt and stud bolt | 10 | 89 | |
| (1) Tighten to 20 Nm (177 lb-in) plus an additional 180 degrees. (2) Refer to the appropriate procedure(s). (3) Tighten to 5 Nm (44 lb-in) plus an additional 180 degrees. | |||
| (1) | Tighten to 20 Nm (177 lb-in) plus an additional 180 degrees. |
| (2) | Refer to the appropriate procedure(s). |
| (3) | Tighten to 5 Nm (44 lb-in) plus an additional 180 degrees. |
TORQUE SPECIFICATIONS
Note. Early build engines have 11 fastener valve covers, late build engines have 9 fastener valve covers. Do not attempt to install bolts in the 2 empty late build valve cover holes or damage to the valve cover will occur.
Note. On early build engines, the timing chain rides on the inner side of the RH timing chain guide. Late build engines are equipped with a different design RH timing chain guide that requires the timing chain to ride on the outer side of the RH timing chain guide. For service, all replacement RH timing chain guides will be the late build design.
The 3.7L (4V) is a V-6 engine with the following features
- Dual overhead camshafts
- Four valves per cylinder
- Sequential Multi-Port Fuel Injection (SFI)
- An aluminum lower intake manifold and a composite upper intake manifold
- Aluminum cylinder heads
- An aluminum, 60-degree V-cylinder block
- Timing chain driven coolant pump
- Variable Camshaft Timing (VCT) system
- The electronic ignition system with 6 ignition coils