Contents Section: Mechanical All sections

Engine Mechanical - 3.7L: Specifications Lincoln MKX I рестайлинг

SPECIFICATIONS

ItemSpecificationFill Capacity
Motorcraft® High Performance Engine RTV Silicone TA-357WSE-M4G323-A6
Motorcraft® SAE 5W-20 Premium Synthetic Blend Motor Oil (US); Motorcraft® SAE 5W-20 Super Premium Motor Oil (Canada) XO-5W20-QSP (US); CXO-5W20-LSP12 (Canada)WSS-M2C945-A5.7L (6.0 qt) includes filter change

MATERIAL SPECIFICATIONS

ItemSpecification
Engine
Displacement3.7L (4V) (226 CID)
No. cylinders6
Bore/stroke 95.5/86.7Mm (3.759/3.413 in)
Fire order1-4-2-5-3-6
Oil pressureMinimum 30 psi @ 1, 500 rpm with engine at normal operating temperature
Compression ratio10.5:1
Spark plugCYFS12F-5 Gap = 1.25-1.35 mm (0.049-0.053 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 flatnessFlat 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 volume56.651 cc (3.46 CI)
Valve tappet clearance - intake0.15-0.25 mm (0.006-0.01 in)
Valve tappet clearance - exhaust0.360-0.460 mm (0.0142-0.0181 in) Engine must be at room temperature before measuring
Valve guide bore inner diameter5.519-5.549 mm (0.217-0.218 in)
Valve stem diameter - intake5.479-5.497 mm (0.2157-0.2164 in)
Valve stem diameter - exhaust5.466-5.484 mm (0.2151-0.2159 in)
Valve stem-to-guide clearance - intake0.022-0.070 mm (0.0008-0.0027 in)
Valve stem-to-guide clearance - exhaust0.035-0.083 mm (0.0013-0.032 in)
Valve head diameter - intake37.0 mm (1.46 in)
Valve head diameter - exhaust31.0 mm (1.22 in)
Valve face runout0.05 mm (0.0001 in)
Valve face angle44.5-45.5°
Valve seat width - intake1.3-1.5 mm (0.051-0.059 in)
Valve seat width - exhaust1.7-2.0 mm (0.067-0.079 in)
Valve seat runout0.04 mm (0.0001 in) MAX
Valve seat angle44.5-45.5°
Valve spring free length (approx.)48.0 mm (1.889 in)
Valve spring compression pressure (N @ spec. length)525 N @ 27.0 mm (114.7 lb @ 1.06 in)
Valve spring installed height37.0 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 limit10% force loss @ specified height
Camshaft
Theoretical valve lift (intake)@ 0 lash10.0 mm (0.394 in)
Theoretical valve lift (exhaust)@ 0 lash9.6798 mm (0.38 in)
Lobe lift - intake10.0 mm (0.394 in)
Lobe lift - exhaust9.6798 mm (0.38 in)
Allowable lobe lift loss0.062 mm (0.0024 in)
Camshaft journal bore inside diameter - 1st journal39.0375-39.0625 mm (1.537-1.538 in)
Camshaft journal bore inside diameter - intermediate journals25.9875-26.0125 mm (1.023-1.024 in)
Camshaft bearing outside diameter - 1st journal38.99-39.01 mm (1.535-1.536 in)
Camshaft bearing outside diameter - intermediate journals25.937-25.963 mm (1.021-1.022 in)
Camshaft journal-to-bearing clearance, 1st journal - service limit0.0725 mm (0.0029 in) MAX
Camshaft journal-to-bearing clearance, intermediate journals - service limit0.0755 mm (0.0029 in) MAX
Runout0.040 mm (0.0015 in) MAX
End play - standard0.032-0.170 mm (0.0012-0.0066 in)
End play - service limit0.190 mm (0.00748 in) MAX
Cylinder Block
Cylinder bore diameter95.500-95.520 mm (3.760-3.761 in)
Cylinder bore roundness0.013 mm (0.0005 in)
Cylinder bore taper0.010 mm (0.0004 in) per 25.4 mm (1 in)
Block main bore roundness0.008 mm (0.003 in)
Main bearing bore inside diameter72.400-72.424 mm (2.8503-2.8513 in)
Head gasket surface flatnessFlat within 0.150 mm (0.005 in) overall 0.050 mm (0.001 in) per 150 mm (5.905 in) x 150 mm (5.905 in) 0.025 mm (0.0009 in) per 25 mm (0.98 in) x 25 mm (0.98 in)
Crankshaft
Main bearing journal diameter67.5 mm (2.657 in)
Main bearing journal maximum taper0.004 mm (0.00015 in)
Main bearing journal maximum out-of-round0.006 mm (0.00023 in)
Main bearing journal-to-main bearing clearance0.026-0.041 mm (0.0010-0.0016 in)
Connecting rod journal diameter55.983-56.003 mm (2.204-2.205 in)
Connecting rod journal maximum taper0.004 mm (0.00015 in)
Connecting rod journal maximum out-of-round0.006 mm (0.00023 in)
Crankshaft maximum end play0.051-0.291 mm (0.0020-0.0114 in)
Piston and Connecting Rod
Piston diameter - single grade95.490-95.476 mm (3.7594-3.7589 in)
Piston-to-cylinder bore clearance0.010 to 0.044 mm (0.0003-0.0017 in)
Piston ring end gap - compression (top, gauge diameter)0.17-0.27 mm (0.0066-0.01063 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 ring2.53-2.55 mm (0.0996-0.1004 in)
Piston ring width - upper compression ring1.17-1.19 mm (0.0460-0.0468 in)
Piston ring width - lower compression ring1.47-1.49 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 diameter23.004-23.008 mm (0.9056-0.9058 in)
Piston pin diameter22.997-23.000 mm (0.9053-0.9055 in)
Piston pin length55.975 mm (2.203 in)
Piston pin-to-piston fit0.004 to 0.011 mm (0.00015-0.00043 in)
Piston-to-connecting rod clearance2.7 mm (0.1 in)
Connecting rod-to-pin clearance - standard0.007-0.022 mm (0.0002-0.00086 in)
Connecting rod pin bore diameter23.007-23.019 mm (0.905-0.906 in)
Connecting rod length (center-to-center)152.68 mm (6.01 in)
Connecting rod maximum allowed bend0.038 mm (0.0014 in)
Connecting rod maximum allowed twist0.050 mm (0.0019 in)
Connecting rod bearing bore diameter - grade 159.866-59.872 mm (2.3569-2.3571 in)
Connecting rod bearing bore diameter - grade 259.873-59.879 mm (2.3572-2.3574 in)
Connecting rod bearing bore diameter - grade 359.880-59.886 mm (2.3574-2.3577 in)
Connecting rod bearing-to-crankshaft clearance0.020-0.054 mm (0.0007-0.0021 in)
Connecting rod side clearance (assembled to crank) - standard0.175-0.425 mm (0.0068-0.0167 in)
Connecting rod side clearance (assembled to crank) - service limit0.175-0.425 mm (0.0068-0.0167 in)

GENERAL SPECIFICATIONS

DescriptionNmLb-ftLb-in
A/C compressor bolts and nut2518
A/C compressor stud980
A/C pressure tube fitting nuts871
A/C tube bracket bolt871
Accessory drive belt tensioner bolts1197
Battery cable power feed cable nut871
Block coolant drain plug - RH (1)
Block coolant drain plug - LH (1)
Block heater4030
Block oil drain plug - LH4835
Block oil drain plug - rear8563
Block oil drain plug - RH3224
Camshaft bearing cap bolts (3)
Camshaft Position (CMP) sensor bolts1089
Camshaft sprocket bolts (3)
Catalytic converter nuts4030
Connecting rod cap bolts (3)
Coolant pump bolts (3)
Crankshaft rear seal retainer plate bolts (3)
Crankshaft Position (CKP) sensor bolt1089
CKP sensor heat shield nuts1089
Crankshaft pulley bolt (3)
Cylinder head bolts (3)
Cylinder Head Temperature (CHT) sensor1089
Degas bottle bolts980
Engine front cover bolts (3)
Engine lifting eye bolts2418
Engine mount brace bolt and nut20177
Engine mount bracket bolts3022
Engine mount-to-engine nuts6346
Engine mount-to-frame bolts9066
Engine oil filter (1)
Engine Oil Pressure (EOP) switch (3)
Engine roll-restrictor heat shield nut980
Engine roll restrictor-to-subframe through bolt11585
Engine roll restrictor-to-transaxle bracket through bolt11585
Exhaust manifold heat shield bolts1089
Exhaust manifold/exhaust manifold catalytic converter nuts (3)
Exhaust manifold/exhaust manifold catalytic converter studs12106
Flexplate bolts (3)
Generator bolt and nut4735
Generator B+ terminal nut17150
Ground wire-to-body nut1089
Ground wire-to-engine bolt1089
Ground wire-to-RH cylinder head bolt1089
Ignition coil-on-plug bolts762
Intermediate steering shaft bolt2317
Knock Sensor (KS) bolts20177
Lower bumper nuts980
Lower intake manifold bolts (3)
Main bearing bolts (3)
Main bearing cap support brace bolts (3)
Oil filter adapter (3)
Oil pan bolts (3)
Oil pan drain plug2720
Oil pan-to-transaxle bolts4835
Oil pump bolts1089
Oil pump screen and pickup tube bolts1089
Power steering cooler bracket bolt980
Power Steering Pressure (PSP) tube bracket banjo bolt4835
Power steering pump bolts2518
Power steering reservoir nuts871
Power Transfer Unit (PTU)9066
PTU support bracket bolts7052
Radio interference capacitor-to-engine front cover nut1089
Rear driveshaft-to-PTU flange bolts7052
Spark plugs15133
Starter bolt and stud bolt2720
Starter B+ terminal nut12106
Starter S-terminal nut544
Subframe brace bolts9066
Subframe bracket bolts9066
Subframe nuts13398
Thermostat housing bolts1089
Tie-rod end nuts4835
Timing chain guide bolts1089
Timing chain tensioner bolts1089
Torque converter-to-flexplate bolts5541
Transaxle mount bracket bolt8059
Transaxle mount bracket nuts6346
Transaxle mount through bolt and nut175129
Transaxle-to-engine bolts4835
Upper intake manifold bolts (3)
Upper intake manifold bracket-to-engine bolt1089
Upper intake manifold-to-bracket bolt1089
Valve cover bolts and stud bolts (3)
VCT solenoid bolts (3)
(1) Tighten to 10 Nm (89 lb-in) plus an additional 720 degrees. (2) Tighten to 16 Nm (142 lb-in) plus an additional 180 degrees. (3) Refer to the appropriate procedure in this service information. (4) Tighten to 5 Nm (44 lb-in) plus an additional 180 degrees.
(1)Tighten to 10 Nm (89 lb-in) plus an additional 720 degrees.
(2)Tighten to 16 Nm (142 lb-in) plus an additional 180 degrees.
(3)Refer to the appropriate procedure in this service information.
(4)Tighten to 5 Nm (44 lb-in) plus an additional 180 degrees.

TORQUE SPECIFICATIONS

The 3.7L (4V) is a V-6 engine with the following features

  1. Dual overhead camshafts
  2. Four valves per cylinder
  3. Sequential Multi-Port Fuel Injection (SFI)
  4. Composite upper and lower intake manifolds
  5. Aluminum cylinder heads
  6. An aluminum, 60-degree V-cylinder block
  7. Timing chain driven coolant pump
  8. Twin independent Variable Camshaft Timing (VCT) system
  9. The electronic ignition system with 6 ignition coils