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Engine - 3.0L (4V): Specifications Mercury Mariner II

Mechanical

GENERAL SPECIFICATIONS

ItemSpecification
Engine
Bore/stroke89.0 x 79.5 mm (3.12 in)
Compression ratio10.0:1
Displacement3.0L (4V) (182 CID)
Engine and transaxle assembly weight (without accessory drive components)234 kg (516 lb)
Engine weight (without accessory drive components and flexplate)146 kg (322 lb)
Fire order1-4-2-5-3-6
No. cylinders6
Oil pressure (Minimum at 1,500 RPM with engine warmed up after 10 minutes of idling)138 kPa (20 psi)
Spark plugAGSF-32M Gap = 1.30-1.40 mm (0.052-0.056 in)
Cylinder Head and Valve Train
Combustion chamber volume52 cc (3.17 CI)
Cylinder head gasket surface flatness
Roller follower ratio @ max. lift2.0:1
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 face angle45.5 degrees
Valve face runout0.05 mm (0.001 in)
Valve guide bore diameter6.015-6.044 mm (0.236-0.237 in)
Valve head diameter - exhaust30 mm (1.18 in)
Valve head diameter - intake35 mm (1.38 in)
Valve head diameter (exhaust) - gauge diameter28.0 mm (1.10236 in)
Valve head diameter (intake) - gauge diameter33.5 mm (1.3189 in)
Valve seat angle44.75 degrees
Valve seat runout0.04 mm (0.001 in)
Valve seat width - exhaust1.4-1.7 mm (0.055-0.066 in)
Valve seat width - intake1.1-1.4 mm (0.043-0.055 in)
Valve spring compression pressure (N @ spec. length)693 N @ 30.09 mm (156 lbs @ 1.18 in)
Valve spring free length (approx.)46.6 mm (1.84 in)
Valve spring installed height (N @ spec. length)39.89 mm (1.57 in)
Valve spring installed pressure240 N @ 39.89 mm (53.95 lbs @ 1.57 in)
Valve spring installed pressure - service limit10% force loss @ specified height
Valve spring squareness2.5%
Valve stem diameter - exhaust5.950-5.970 mm (0.2343-0.2350 in)
Valve stem diameter - intake5.975-5.995 mm (0.2350-0.2358 in)
Valve stem-to-guide clearance - exhaust0.045-0.094 mm (0.0017-0.037 in)
Valve stem-to-guide clearance - intake0.019-0.069 mm (0.0007-0.0027 in)
Hydraulic Lash Adjuster
Clearance to bore0.018-0.069 mm (0.0007-0.0027 in)
Collapsed lash adjuster gap0.50-1.11 mm (0.019-0.043 in)
Diameter (standard)16-15.988 mm (0.6290-0.6294 in)
Hydraulic leakdown rate5-25 seconds
Camshaft
Allowable lobe lift loss0.76 mm (0.03 in)
Camshaft journal bore inside diameter27.012-26.987 mm (1.063-1.062 in)
Camshaft journal-to-bearing clearance - service limit0.121 mm (0.0047 in)
Camshaft journal-to-bearing clearance - standard0.025-0.076 mm (0.001-0.0029 in)
End play - service limit0.190 mm (0.00748 in)
Journal diameter (all)26.962-26.936 mm (1.061-1.060 in)
Lobe lift4.80 mm (0.189 in)
Runout
Theoretical valve lift @ 0 lash9.80 mm (0.388 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 out-of-round0.015 mm (0.0005 in)
Cylinder bore maximum out-of-round - service limit0.020 mm (0.0007 in)
Cylinder bore maximum taper0.020 mm (0.0008 in)
Head gasket surface flatness
Main bearing bore inside diameter67.998-68.022 mm (2.677-2.6780 in)
Crankshaft
Connecting rod journal diameter49.969-49.991 mm (1.967-1.968 in)
Connecting rod journal maximum out-of-round0.006 mm (0.0002 in)
Connecting rod journal maximum taper0.008 mm (0.0003 in)
Crankshaft maximum end play0.135-0.255 mm (0.005-0.010 in)
Main bearing journal diameter62.968-62.992 mm (2.467-2.479 in)
Main bearing journal maximum out-of-round0.006 mm (0.0002 in)
Main bearing journal maximum taper0.008 mm (0.0003 in)
Main bearing journal-to-cylinder block clearance0.024-0.072 mm (0.0009-0.003 in)
Piston and Connecting Rod
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 length (center-to-center)138.06-138.14 mm (5.435-5.38 in)
Connecting rod maximum allowed bend0.038 mm per 25 (0.0014 per 0.984 in)
Connecting rod maximum allowed twist0.050 mm per 25 (0.0019 per 0.984 in)
Connecting rod pin bore diameter21.017-21.031 mm (0.827-0.828 in)
Connecting rod side clearance0.100-0.30 mm (0.0039-0.0118 in)
Connecting rod-to-pin clearance - service limit0.035 mm (0.0013 in)
Connecting rod-to-pin clearance - standard0.004-0.02 mm (0.0001-0.0007 in)
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 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 ring end gap - compression (bottom, gauge diameter)0.27-0.42 mm (0.0106-0.0165 in)
Piston ring end gap - compression (bottom, service limit)0.65 mm (0.0255 in) max
Piston ring end gap - compression (top, gauge diameter) a0.100-0.250 mm (0.0039-0.0098 in)
Piston ring end gap - compression (top, service limit)0.50 mm (0.0196 in) max
Piston ring end gap - oil ring (steel rail, gauge diameter)0.15-0.65 mm (0.0059-0.0255 in)
Piston ring end gap - oil ring (steel rail, service limit)0.90 mm (0.0354 in) max
Piston ring groove width - compression (bottom)1.530-1.545 mm (0.0602-0.0608 in)
Piston ring groove width - compression (top)1.230-1.245 mm (0.0484-0.0490 in)
Piston ring groove width - oil ring3.030-3.055 mm (0.1192-0.0120 in)
Piston ring-to-groove clearance
Piston ring width
Piston pin-to-piston fit0.002 to 0.009 mm (0.00007-0.0003 in)
Piston-to-connecting rod clearance
Piston-to-cylinder bore clearance0.012 to 0.022 mm (0.0005-0.0009 in)

GENERAL SPECIFICATIONS

a Specification 82.4 mm (3.2441 in) diameter gauge

TORQUE SPECIFICATIONS

DescriptionNm
Accelerator cable bracket bolts10
Accelerator cable snow shield bolts10
Accessory drive belt tensioner bolt45
Air conditioning compressor bracket bolts25
Air conditioning compressor bolts25
Battery cable nut10
Block heater21
Brake hose and wiring retainers15
Camshaft journal and thrust cap bolts a
Camshaft oil seal retainer bolts10
Camshaft position (CMP) sensor bolt10
Catalyst monitor sensor electrical connector bracket nut10
Center accessory drive belt idler pulley bolt25
Coil-on-plug bolts6
Coolant bypass tube nut and bolt10
Coolant pump bolts10
Crankcase cover bolts10
Crankshaft position (CKP) sensor bolt10
Crankshaft pulley bolt a
Cross brace bolts90
Cross brace nut175
Cylinder head bolts a
Driveshaft-to-power takeoff bolts and washers37
Engine control wiring harness (B+) shield nuts6
Engine front cover bolts and studs a
Engine lift bracket bolt118
Engine oil filter a
Engine oil pressure (EOP) switch14
Engine support insulator bolts48
Engine support insulator bracket bolt90
Engine support insulator bracket nuts55
Exhaust gas recirculation (EGR) tube40
EGR tube nuts40
EGR vacuum regulator stud bolt nut6
Exhaust manifold nuts a
Exhaust manifold studs12
Exhaust Y-pipe flange nuts29
Flexplate bolts80
Front roll restrictor bolt115
Gearshift cable bracket bolts23
Generator B+ wiring harness nut6
Generator B+ wire nut8
Generator bolt47
Generator studs8
Generator stud nuts47
Ground strap bolt10
Ground wire bolt10
Ground wire eyelet nut25
Halfshaft support bracket bolts48
Heated oxygen sensor (HO2S)47
Ignition coil-on-plug bolts6
Intermediate shaft bracket nuts27
Lateral support crossmember bolts115
LH accessory drive belt idler pulley bolt47
LH transaxle support insulator through bolt115
Lower ball joint pinch bolts and nuts63
Lower intake manifold bolts a
Oil level indicator tube stud bolt10
Oil pan baffle nuts a
Oil pan bolts and studs25
Oil pan drain plug26
Oil pan-to-transaxle bolts40
Oil pump bolts10
Oil pump screen and pickup tube bolts and nut10
Output shaft speed (OSS) sensor bolt13
Power distribution box cable nuts12
Power transfer unit (PTU) bolts45
PTU vent tube bolt14
Powertrain control module (PCM) wiring nut8
Radio interference capacitor nut6
Rear transaxle support insulator through bolt103
RH accessory drive belt idler pulley and bracket bolts25
RH and LH lower splash shield bolts9
RH transaxle support insulator bracket nuts and bolt80
RH radio ignition interference capacitor nut6
RH transaxle support insulator through bolt115
Speed control actuator nuts9
Stabilizer link-to-strut nuts63
Tie-rod end nuts55
Timing chain guide bolts25
Timing chain tensioner bolts25
Torque converter-to-flexplate nuts40
Transaxle cooler tube bracket bolt13
Transaxle cooler tube fitting nut23
Transaxle-to-engine bolts47
Transaxle-to-engine stud and nuts48
Transaxle-to-oil pan bracket bolt25
Upper intake manifold bolts a
Upper radiator support bracket bolts10
Valve cover bolts and stud bolts a
Wiring harness-to-valve cover stud bolt nut6

TORQUE SPECIFICATIONS

a Refer to the procedure in this article.

The 3.0L (4V) is a V-6 engine has the following features

  1. Dual overhead camshafts
  2. Four valves per cylinder
  3. Sequential multiport fuel injection (SFI)
  4. Composite lower intake manifold and composite upper intake manifold
  5. Aluminum cylinder heads
  6. Two-piece design aluminum cylinder block
  7. Electronic ignition system with 6 ignition coils

More articles — Engine - 3.0L (4V)