Contents Wiring diagrams Section: Mechanical All sections

Engine - 3.0L (4V): Specifications Mercury Milan I

GENERAL SPECIFICATIONS

ItemSpecification
Lubricants and Sealants
Silicone Gasket Remover ZC-30
Motorcraft Metal Surface Prep ZC-31
Silicone Gasket and Sealant TA-30WSE-M4G323-A4
Silicone Brake Caliper Grease and Dielectric Compound XG-3-AESE-M1C171-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 equivalentWSS-M2C930-A
Motorcraft Premium Gold Engine Coolant with Bittering Agent (US only) VC-7-B (US); CVC-7-A (Canada); or equivalent (yellow color)WSS-M97B51-A1
Thread Sealant with PTFE TA-24WSK-M2G350-A2
Engine
Displacement3.0L (4V) (182 CID)
No. cylinders6
Bore/stroke89.0 x 79.5 mm (3.5 x 3.13 in)
Fire order1-4-2-5-3-6
Oil pressure (Minimum at 1,500 rpm with engine warmed up after 10 minutes of idling)76 kPa (11 psi)
Oil capacity (includes filter change)5.7L (6.0 qt)
Spark plugAGSF-32M Gap = 1.30-1.40 mm (0.052-0.056 in)
Cylinder Head and Valve Train
Cylinder head gasket surface flatness
Combustion chamber volume52 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 inner diameter6.015-6.044 mm (0.236-0.237 in)
Valve stem diameter - intake5.975-5.995 mm (0.2350-0.2358 in)
Valve stem diameter - exhaust5.950-5.970 mm (0.2343-0.2350 in)
Valve stem-to-guide clearance - intake0.019-0.069 mm (0.0007-0.0027 in)
Valve stem-to-guide clearance - exhaust0.045-0.094 mm (0.0017-0.037 in)
Valve head diameter - intake35 mm (1.38 in)
Valve head diameter - exhaust30 mm (1.18 in)
Valve head diameter (intake) - gauge diameter33.5 mm (1.3189 in)
Valve head diameter (exhaust) - gauge diameter28.0 mm (1.10236 in)
Valve face runout0.05 mm (0.001 in)
Valve face angle45.5 degrees
Valve seat width - intake1.1-1.4 mm (0.043-0.055 in)
Valve seat width - exhaust1.4-1.7 mm (0.055-0.066 in)
Valve seat runout0.04 mm (0.001 in)
Valve seat angle44.75 degrees
Valve spring free length (approx.)46.6 mm (1.84 in)
Valve spring squareness2.5%
Valve spring compression pressure (N @ spec. length)693 N @ 30.09 mm (156 lbs @ 1.18 in)
Valve spring installed height39.89 mm (1.57 in)
Valve spring installed pressure (N @ spec. length)240 N @ 39.89 mm (53.95 lbs @ 1.57 in)
Valve spring installed pressure - service limit10% force loss @ specified height
Roller follower ratio @ max. lift2.0:1
Hydraulic Lash Adjuster
Diameter (standard)16-15.988 mm (0.6290-0.6294 in)
Clearance to bore0.018-0.069 mm (0.0007-0.0027 in)
Hydraulic leakdown rate5-25 seconds
Collapsed lash adjuster gap0.50-1.11 mm (0.019-0.043 in)
Camshaft
Theoretical valve lift @ 0 lash9.80 mm (0.388 in)
Lobe lift4.80 mm (0.189 in)
Allowable lobe lift loss0.76 mm (0.03 in)
Journal diameter (all)26.962-26.936 mm (1.061-1.060 in)
Camshaft journal bore inside diameter27.012-26.987 mm (1.063-1.062 in)
Camshaft journal-to-bearing clearance - standard0.025-0.076 mm (0.001-0.0029 in)
Camshaft journal-to-bearing clearance - service limit0.121 mm (0.0047 in)
Runout
End play - service limit0.190 mm (0.00748 in)
Cylinder Block
Cylinder bore diameter - grade 189.000-89.010 mm (3.50393-3.504323 in)
Cylinder bore diameter - grade 289.010-89.020 mm (3.504323-3.504717 in)
Cylinder bore diameter - grade 389.020-82.030 mm (3.504717-3.50511 in)
Cylinder bore maximum taper0.020 mm (0.0008 in)
Cylinder bore maximum out-of-round0.015 mm (0.0005 in)
Cylinder bore maximum out-of-round - service limit0.020 mm (0.0007 in)
Main bearing bore inside diameter67.998-68.022 mm (2.677-2.6780 in)
Head gasket surface flatness
Crankshaft
Main bearing journal diameter62.968-62.992 mm (2.467-2.479 in)
Main bearing journal maximum taper0.008 mm (0.0003 in)
Main bearing journal maximum out-of-round0.006 mm (0.0002 in)
Main bearing journal-to-cylinder block clearance0.024-0.072 mm (0.0009-0.003 in)
Connecting rod journal diameter49.969-49.991 mm (1.967-1.968 in)
Connecting rod journal maximum taper0.008 mm (0.0003 in)
Connecting rod journal maximum out-of-round0.006 mm (0.0002 in)
Crankshaft maximum end play0.135-0.255 mm (0.005-0.010 in)
Piston and Connecting Rod
Piston diameter - coated, grade 188.990-89.010 mm (3.5035-3.5043 in)
Piston diameter - coated, grade 288.998-89.022 mm (3.5039-3.5048 in)
Piston diameter - coated, grade 389.010-89.030 mm (3.5043-3.5051 in)
Piston diameter - uncoated, grade 188.970-88.980 mm (3.50275-3.50314 in)
Piston diameter - uncoated, grade 288.978-88.992 mm (3.50306-3.50362 in)
Piston diameter - uncoated, grade 389.010-89.030 mm (3.50432-3.50511 in)
Piston-to-cylinder bore clearance0.012 to 0.022 mm (0.0005-0.0009 in)
Piston ring end gap - compression (top, gauge diameter) a0.100-0.250 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 ring3.030-3.055 mm (0.1192-0.0120 in)
Piston ring width
Piston ring-to-groove clearance
Piston pin bore diameter21.008-21.012 mm (0.8270-0.8272 in)
Piston pin diameter21.011-21.013 mm (0.8271-0.8273 in)
Piston pin length60.51-60.08 mm (2.382-2.365 in)
Piston pin-to-piston fit0.002 to 0.009 mm (0.00007-0.0003 in)
Piston-to-connecting rod clearance
Connecting rod-to-pin clearance - standard0.004-0.02 mm (0.0001-0.0007 in)
Connecting rod-to-pin clearance - service limit0.035 mm (0.0013 in)
Connecting rod pin bore diameter21.017-21.031 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 bend0.038 per 25 mm (0.0014 per 0.984 in)
Connecting rod maximum allowed twist0.050 per 25 mm (0.0019 per 0.984 in)
Connecting rod bearing bore diameter53.015-53.035 mm (2.0872-2.0879 in)
Connecting rod bearing-to-crankshaft clearance0.028-0.066 mm (0.001-0.0025 in)
Connecting rod side clearance0.100-0.30 mm (0.0039-0.0118 in)

GENERAL SPECIFICATIONS

a Specification 82.4 mm (3.2441 in) diameter gauge

TORQUE SPECIFICATIONS

DescriptionNm
A/C compressor bolts25
A/C compressor bracket bolts25
A/C manifold bolt15
A/C tube connection bolts8
A/C tube retaining bolts8
Accessory drive belt tensioner bolt45
Accessory drive belt idler (grooved) pulley bolt25
Accessory drive belt idler (non-grooved) pulley bolt48
Block heater41
Camshaft bearing cap bolts a
Camshaft thrust bearing cap bolts a
Camshaft oil seal retainer bolts10
Camshaft position (CMP) sensor electrical connector bracket bolt12
Catalyst monitor sensor bracket bolt12
Catalytic converter heat shield bolts11
Catalytic converter studs12
Catalytic converter nuts - LH and RH front wheel drive (FWD)20
Catalytic converter nuts - RH all wheel drive (AWD)20
Catalytic converter-to-engine bracket bolts35
Catalytic converter bracket-to-converter bolts20
Coolant bypass tube nuts20
Coolant pump drive pulley cover nuts (if equipped)6
Coolant pump bolts10
Crankshaft pulley bolt a
Crankcase cover bolts10
Cylinder head bolts a
Exhaust gas recirculation (EGR) tube nuts40
EGR valve bolts25
Engine front cover bolts a
Engine oil filter a
Engine cover ball studs4
Engine mount bracket bolt115
Engine mount bracket nuts63
Engine mount damper bolt23
Engine mount nut and bolts55
Engine roll-restrictor bolts90
Exhaust manifold a
Exhaust manifold studs12
Flexplate bolts80
Generator bolts and stud bolt48
Generator B+ terminal nut6
Ground wire-to-engine mount bracket bolt10
Ground wire-to-transaxle bolt12
Halfshaft carrier bearing bracket bolts - AWD55
Halfshaft carrier bearing bracket bolts - FWD23
Ignition coil-on-plug bolts7
Intermediate steering shaft bolt23
Knock sensor (KS) bolt20
Lower ball joint nuts200
Lower control arm-to-strut through bolt103
Lower intake manifold bolts10
Oil level indicator tube stud bolt9
Oil pan baffle nuts a
Oil pan bolts and stud bolts a
Oil pan-to-engine front cover bolts25
Oil pan-to-transaxle bolts48
Oil pan drain plug26
Oil pressure sender14
Oil pump bolts a
Oil pump screen and pickup tube bolts10
Oil separator cover bolts10
Power steering pump bolts25
Power steering pressure (PSP) tube bracket-to-cylinder head bolt9
PSP tube bracket-to-reservoir bolt9
PSP tube bracket-to-steering gear bolt15
Power steering rack heat shield bolts15
Power steering reservoir nuts9
PSP tube banjo bolts35
Power transfer unit (PTU)-to-transaxle bolts90
PTU bracket bolts70
Radio frequency interference capacitor nut6
Rear driveshaft-to-PTU flange bolts70
Spark plugs15
Stabilizer bar link nuts40
Starter motor bolts27
Starter B+ terminal nut12
Starter S terminal nut5
Subframe nuts150
Subframe bracket bolts103
Throttle body bolts10
Tie rod end nuts48
Timing chain tensioner bolts25
Torque converter-to-flexplate nuts36
Transaxle control cable bracket8
Transaxle-to-engine bolts48
Transaxle mount bolts90
Upper intake manifold bolts a
Vacuum tube bracket10
Variable camshaft timing (VCT) actuator bolts a
VCT assembly bolts25
Valve cover bolts and stud bolts a
Windshield washer bottle and A/C tube retaining bolt7
Wiring harness retainer bolt10

TORQUE SPECIFICATIONS

a Refer to the appropriate procedures.

The 3.0L (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. A composite lower intake manifold and a composite upper intake manifold
  5. Aluminum cylinder heads
  6. Two-piece design aluminum cylinder block
  7. Electronic ignition system with 6 ignition coils

See also:
JACKING AND LIFTING