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Engine Mechanical - 3.0L 6-CYLINDER: Specifications Subaru Outback BH

Mechanical 20 illustrations ~281 words

SPECIFICATIONS

Note. Standard: Inner Diameter (I.D.), Outer Diameter (O.D.), Undersize (U.S.) and Oversize (O.S.).

EngineTypeHorizontally opposed, liquid cooled, 6-cylinder, 4-stroke gasoline engine
Valve arrangementChain driven, double over-head camshaft, 4-valve/cylinder
Bore x StrokeMm (in)67.2 x 80 (3.433 x 3.150)
DisplacementCm 3 (cu in)2,999 (183)
Compression ratio10.7
Compression pressure (350 rpm and fully open throttle)KPa (kg/cm 2 , psi)1,275 - 1,471 (13.0 - 15.0, 185 - 213)
Number of piston ringsPressure ring: 2, Oil ring: 1
Intake valve timingOpening5° BTDC
Closing55° ABDC
Exhaust valve timingOpening52° BBDC
Closing0° ATDC
Valve clearanceIntakeMm (in)0.20+ 004 / -006 (0.0079 +0 0016 / 0 0024 )
ExhaustMm (in)0.25 ± 0.05 (0.0098 ± 0.0020)
Idle speed [At "P" or "N" position]Rpm600 ± 50 (No load) 700150 (A/C switch ON)
Firing order1 - 6 - 3 - 2 - 5 - 4
Ignition timingBTDC/rpm10° ± 3°/600
Belt tensionerSpacer O.D.17.955 - 17.975 mm (0.7069 - 0.7077 in)
Tensioner bushing I.D.18.00 - 18.08 mm (0.7087 - 0.7118 in)
Clearance between spacer and bushingSTD0.025 - 0.125 mm (0.0010 - 0.0049 in)
Limit0.175 mm (0.0069 in)
Side clearance of spacerSTD0.20 - 0.55 mm (0.0079 - 0.0217 in)
Limit0.81 mm (0.0319 in)
CamshaftBend limit0.020 mm (0.0008 in)
Thrust clearanceIntakeSTD0.075 - 0.135 mm (0.0030 - 0.0053 in)
Limit0.155 mm (0.0061 in)
ExhaustSTD0.048 - 0.108 mm (0.0019 - 0.0043 in)
Limit0.130 mm (0.0051 in)
Cam lobe heightIntakeSTD46.05 - 46.15 mm (1.8130- 1.8169 in)
Limit45.95 mm (1.8091 in)
ExhaustSTD45.55 - 45.65 mm (1.7933- 1.7972 in)
Limit45.45 mm (1,7894 in)
Camshaft journal O.D.Front37.963 - 37.946 mm (1.4946 - 1.4939 in)
Center & Rear27.963 - 27.946 mm (1.1009 - 1.1002 in)
Camshaft journal hole I.D.Front38.000 -38.018 mm (1.4961 - 1.4968 in)
Center & Rear28.000 - 28.018 mm (1.1024- 1.1031 in)
Oil clearanceSTD0.037 - 0.072 mm (0.0015 - 0.0028 in)
Limit0.10 mm (0.0039 in)
Cylinder headSurface warpage limit0.05 mm (0.0020 in)
Surface grinding limit0.1 mm (0.004 in)
Standard height124 mm (4.88 in)
Valve seatRefacing angle90°
Contacting widthIntakeSTD1.0 mm (0.039 in)
Limit1.7 mm (0.067 in)
ExhaustSTD1.5 mm (0.059 in)
Limit2.2 mm (0.087 in)
Valve guideInner diameter5.500 - 5.512 mm (0.2165 - 0.2170 in)
Protrusion above headIntake12.3 - 12.7 mm (0.484 - 0.500 in)
ValveHead edge thicknessIntakeSTD1.0 mm (0.039 in)
Limit0.8 mm (0.315 in)
ExhaustSTD1.2 mm (0.047 in)
Limit0.8 mm (0.315 in)
Stem diameterIntake5.455 - 5.470 mm (0.2148 - 0.2154 in)
Exhaust5.455 - 5.460 mm (0.2148 - 0.2150 in)
Stem oil clearanceSTDIntake0.030 - 0.057 mm (0.0012 - 0.0022 in)
Exhaust0.040 - 0.067 mm (0.0016 - 0.0026 in)
Limit0.15 mm (0.0059 in)
Overall lengthIntake103.5 mm (4.07 in)
Exhaust103.2 mm (4.06 in)
Valve springFree length46.79 mm (1.8421 in)
Squareness2.5°, 2.0 mm (0.079 in)
Tension/spring heightSet186.2 - 205.8 N (18.99 - 20.99 kgf, 41.9 - 46.3 lb)/37.4 mm (1.472 in)
Lift446.5 - 493.5 N (45.54 - 50.34 kgf, 100.3 - 110.9 lb)/27.5 mm (1.083 in)
Cylinder blockSurface warpage limit (mating with cylinder head)0.05 mm (0.0020 in)
Surface grinding limit0.1 mm (0.004 in)
Cylinder boreSTDA89.205 - 89.215 mm (3.5120 - 3.5124 in)
B89.195 - 89.205 mm (3.5116 - 3.5120 in)
TaperLimit0.050 mm (0.0020 in)
Out-of-roundnessLimit0.050 mm (0.0020 in)
Piston clearanceSTD0.010 - 0.030 mm (0.0004 - 0.0012 in)
Limit0.050 mm (0.0020 in)
Enlarging (boring) limit0.5 mm (0.020 in)
PistonOuter diameterSTDA89.185 - 89.195 mm (3.5112 - 3.5116 in)
B89.175 - 89.185 mm (3.5108 - 3.5112 in)
0.25 mm (0.0098 in) OS89.425 - 89.435 mm (3.5207 - 3.5211 in)
0.50 mm (0.0197 in) OS89.675 - 89.685 mm (3.5305 - 3.5309 in)
Standard inner diameter of piston pin hole22.000 - 22.006 mm (0.8661 - 0.8664 in)
Piston pinOuter diameter21.994 - 22.000 mm (0.8659 - 0.8661 in)
Standard clearance between piston pin and hole in piston0.004 - 0.008 mm (0.0002 - 0.0003 in)
Degree of fitPiston pin must be fitted into position with thumb at 20°C (68°F).
Piston ringPiston ring gapTop ringSTD0.20 - 0.35 mm (0.0079 - 0.0138 in)
Limit1.0 mm (0.039 in)
Second ringSTD0.35 - 0.50 mm (0.0138 - 0.0197 in)
Limit1.0 mm (0.039 in)
Oil ringSTD0.20 - 0.60 mm (0.0079 - 0.0236 in)
Limit1.5 mm (0.059 in)
Clearance between piston ring and piston ring grooveTop ringSTD0.040 - 0.080 mm (0.0016 - 0.0031 in)
Limit0.15 mm (0.0059 in)
Second ringSTD0.030 - 0.070 mm (0.0012 - 0.0028 in)
Limit0.15 mm (0.0059 in)
Connecting rodBend twist per 100 mm (3.94 in) in lengthLimit0.10 mm (0.0039 in)
Side clearanceSTD0.070 - 0.330 mm (0.0028 - 0.0130 in)
Limit0.4 mm (0.016 in)
Connecting rod bearingOil clearanceSTD0.022 - 0.052 mm (0.0009 - 0.0020 in)
Limit0.065 mm (0.0026 in)
Thickness at center portionSTD1.490 - 1.502 mm (0.0587 - 0.0591 in)
0.03 mm (0.0012 in) US1.510 - 1.513 mm (0.0594 - 0.0596 in)
0.05 mm (0.0020 in) US1.520 - 1.523 mm (0.0598 - 0.0600 in)
0.25 mm (0.0098 in) US1.620 - 1.623 mm (0.0638 - 0.0639 in)
Connecting rod bushingClearance between piston pin and bushingSTD0 - 0.022 mm (0 - 0.0009 in)
Limit0.030 mm (0.0012 in)
CrankshaftBend limit0.035 mm (0.0014 in)
Crank pin and crank journalOut-of-roundness0.020 mm (0.0008 in) or less
Grinding limit0.250 mm (0.0098 in)
Crank pin outer diameterSTD51.984 - 52.000 mm (2.0466 - 2.0472 in)
0.03 mm (0.0012 in) US51.954 - 51.970 mm (2.0454 - 2.0461 in)
0.05 mm (0.0020 in) US51.934 - 51.950 mm (2.0446 - 2.0453 in)
0.25 mm (0.0098 in) US51.734 - 51.750 mm (2.0368 - 2.0374 in)
Crank journal outer diameter#1, #3, #5, #7STD63.992 - 64.008 mm (2.5194 - 2.5200 in)
0.03 mm (0.0012 in) US63.962 - 63.978 mm (2.5182 - 2.5188 in)
0.05 mm (0.0020 in) US63.942 - 63.958 mm (2.5174 - 2.5180 in)
0.25 mm (0.0098 in) US63.742 - 63.758 mm (2.5095 - 2.5102 in)
#2, #4, #6STD63.992 - 64.008 mm (2.5194 - 2.5200 in)
0.03 mm (0.0012 in) US63.962 - 63.978 mm (2.5182 - 2.5188 in)
0.05 mm (0.0020 in) US63.942 - 63.958 mm (2.5174 - 2.5180 in)
0.25 mm (0.0098 in) US63.742 - 63.758 mm (2.5095 - 2.5102 in)
Thrust clearanceSTD0.030 - 0.115 mm (0.0012 - 0.0045 in)
Limit0.25 mm (0.0098 in)
Oil clearanceSTD0.015 - 0.030 mm (0.0006 - 0.0012 in)
Limit0.050 mm (0.0020 in)
Crankshaft bearingCrankshaft bearing thickness#1, #3, #5, #7STD1.992 - 2.005 mm (0.0784 - 0.0789 in)
0.03 mm (0.0012 in) US2.017 - 2.020 mm (0.0794 - 0.0795 in)
0.05 mm (0.0020 in) US2.027 - 2.030 mm (0.0798 - 0.0799 in)
0.25 mm (0.0098 in) US2.127 - 2.130 mm (0.0837 - 0.0839 in)
#2, #4, #5STD1.996 - 2.000 mm (0.0786 - 0.0787 in)
0.03 mm (0.0012 in) US2.019 - 2.020 mm (0.0795 - 0.0795 in)
0.05 mm (0.0020 in) US2.029 - 2.032 mm (0.0799 - 0.0800 in)
0.25 mm (0.0098 in) US2.129 - 2.132 mm (0.0838 - 0.0839 in)

Engine Specifications

Exploded View Of V- Belt. Scheme 25

Scheme 25: Exploded View Of V- Belt
Scheme 25: Exploded View Of V- Belt

Tightening torque: N.m (kgf-m, ft-lb)

  1. T1: 6.4 (0.65, 4.7)
  2. T2: 20 (2.0, 14)
  3. T3: 25 (2.5, 18)
  4. T4: 33 (3.4, 25)

Exploded View Of Timing Chain Cover. Scheme 26

Scheme 26: Exploded View Of Timing Chain Cover
Scheme 26: Exploded View Of Timing Chain Cover

Tightening torque: N.m (kgf-m, ft-lb)

  1. T1: See «CRANKSHAFT PULLEY»(ref-159212-S39428196302005061700000).
  2. T2: See «CRANKSHAFT PULLEY»(ref-159212-S39428196302005061700000).
  3. T3: 6.4 (0.65, 4.7)

Exploded View Of Timing Belt. Scheme 27

Scheme 27: Exploded View Of Timing Belt
Scheme 27: Exploded View Of Timing Belt

Tightening torque: N.m (kgf-m, ft-lb)

  1. T1: 6.4 (0.64, 4.7)
  2. T2: 7.8 (0.80, 5.8)
  3. T3: 13 (1.3, 9.4)
  4. T4: 16 (1.6, 11.6)
  5. T5: 69 (7.0, 50.6)

Exploded View Of Cylinder Head & Camshaft. Scheme 28

Scheme 28: Exploded View Of Cylinder Head & Camshaft
Scheme 28: Exploded View Of Cylinder Head & Camshaft

Tightening torque: N.m (kgf-m, ft-lb)

  1. T1: See «CYLINDER HEAD ASSEMBLY»(ref-159212-S24989544952005061700000).
  2. T2: See «CAMSHAFT»(ref-159212-S42619175932005061700000).
  3. T3: 9.8 (1.0, 7.2)
  4. T4: 16 (1.6, 12)
  5. T5: 59 (6.0, 43)

Exploded View Of Cylinder Head & Valve Assembly. Scheme 29

Scheme 29: Exploded View Of Cylinder Head & Valve Assembly
Scheme 29: Exploded View Of Cylinder Head & Valve Assembly

Exploded View Of Cylinder Block. Scheme 30

Scheme 30: Exploded View Of Cylinder Block
Scheme 30: Exploded View Of Cylinder Block

Tightening torque: N.m (kgf-m, ft-lb)

  1. T1: 6.4 (0.65, 4.7)
  2. T2: 18 (1.8 13.0)
  3. T3: 25 (2.5 18)
  4. T4: 34 (3.5 25)
  5. T5: 37 (3.8 27)
  6. T6: 44 (4.5 33)
  7. T7: 54 (5.5 40)
  8. T8: 69 (7.0 51)
  9. T9: See «CYLINDER BLOCK»(ref-159212-S27073853242005061700000).
  10. T10: 90 (9.2 67)

Exploded View Of Crankshaft & Pistons. Scheme 31

Scheme 31: Exploded View Of Crankshaft & Pistons
Scheme 31: Exploded View Of Crankshaft & Pistons

Tightening torque: N.m (kgf-m, ft-lb)

  1. T1: 53 (5.4 39)
  2. T2: 81 (8.3, 60)

Exploded View Of Engine Mounts. Scheme 32

Scheme 32: Exploded View Of Engine Mounts
Scheme 32: Exploded View Of Engine Mounts

Tightening torque: N.m (kgf-m, ft-lb)

  1. T1: 34 (3.5, 25.3)
  2. T2: 74 (7.5, 54)

TORQUE SPECIFICATIONS

ApplicationFt. Lbs. (N.m)
Belt Idler Pulley Bolt24 (33)
Belt Tensioner Bolts15 (20)
Camshaft Cap Bolts
Step 1 - Except Front Caps (1)12 (16)
Step 2 - Front Caps (2)(3)
Chain Guide & Tensioner Bolts
Chain Guide Between Camshaft Sprockets(4)
Chain Tensioner12 (16)
Chain Tensioner Lever12 (16)
Chain Guide12 (16)
Chain Idler Sprocket Bolt51 (69)
Connecting Rod Cap Bolts39 (53)
Crankshaft Pulley Bolt (5)131 (178)
Cylinder Block Connecting Bolts (6)
Step 1
Bolts 1-1118 (25)
Bolt 1215 (20)
Bolt 1318 (25)
Bolt 1415 (20)
Step 2
Bolts 1-1118 (25)
Bolt 1215 (20)
Bolt 1318 (25)
Bolt 1415 (20)
Step 3 (7)18 (25)
Cylinder Block Service Hole Plug51 (69)
Cylinder Head Bolts (5) (8)
Step 115 (20)
Step 237 (50)
Step 3Loosen 180 Degrees
Step 4Loosen 180 Degrees
Step 518 (25)
Step 618 (25)
Step 7Tighten An Additional 90 Degrees
Step 8 - Bolts 1-4Tighten An Additional 90 Degrees
Step 9 - Bolts 5-8Tighten An Additional 45 Degrees
Drive Plate Bolts60 (81)
EGR Valve Bolts14 (19)
Engine Coolant Temperature Sensor12 (16)
Engine Mounts
Bolts25 (34)
Nuts55 (74)
Exhaust Pipe-To-Cylinder Head Nuts22 (30)
Fuel Injector Pipe Bolts14 (19)
Fuel Pump Protector-To-Intake Manifold Bolts14 (19)
Generator Bolts18 (25)
Ignition Coil Bolts12 (16)
Induction Valve Bolts14 (19)
Induction Valve Control Solenoid Bolt14 (19)
Intake Manifold Bolts/Nuts18 (25)
Knock Sensor Bolt18 (25)
Oil Drain Plug32 (44)
Oil Filter Connector40 (54)
Oil Pressure Switch18 (25)
Oxygen Sensor15 (20)
Power Steering Pump Bolts15 (20)
Power Steering Pump Bracket Bolts18 (25)
Purge Control Solenoid Valve Bolts14 (19)
Pitching Stopper-To
Body42 (57)
Engine36 (49)
Spark Plugs15 (20)
Throttle Body Bolts16 (22)
Torque Converter-To-Drive Plate Bolts18 (25)
Transmission-To-Engine Bolts37 (50)
Upper Oil Pan Bolts (9)13 (18)
Upper Oil Pan Plug
Large Plug66 (90)
Small Plug27 (37)
INCH Lbs. (N.m)
Accelerator Cable Bracket Bolts44 (5)
Air Assist & Purge Pipe Assembly Bolts44 (5)
Camshaft Position Sensor Bolt57 (6.4)
Camshaft Sprocket Bolts115 (13)
Crankshaft Position Sensor Bolt57 (6.4)
Crankshaft Pulley Cover Bolts57 (6.4)
Cylinder Block Service Hole Cover Bolts57 (6.4)
EGR Pipe Bolts57 (6.4)
Front Chain Cover Bolts (10)62 (7)
Fuel Pipe Assembly Bolts44 (5)
Fuel Pressure Regulator Bolt57 (6.4)
Idle Air Control Solenoid Valve Bolts27 (3)
Intake Manifold Pressure Sensor Bolts18 (2)
Lower Oil Pan Bolts (11)57 (6.4)
Oil Cooler Pipe Bolts57 (6.4)
Oil Pump Cover Bolts (12)57 (6.4)
Oil Pump Relief Valve Bolts (13)57 (6.4)
Oil Strainer Bolts57 (6.4)
Rear Chain Cover Bolts (14)
Bolts 1-1180 (9)
Bolts 12-19(15)
Bolts 20-3180 (9)
Bolts 32-39106 (12)
Bolts 40-4680 (9)
Rocker Cover Bolts (16)57 (6.4)
Thermostat Housing Bolts57 (6.4)
Throttle Position Sensor Bolts18 (2)
Water Pump Bolts57 (6.4)
(1) Tighten camshaft cap bolts in sequence. (Scheme 33) (2) Tighten front camshaft cap bolts in sequence. (Scheme 34) (3) Tighten to 89 INCH lbs. (10 N.m). (4) Tighten to 57 INCH lbs. (6.4 N.m). (5) Oil bolt threads and seat. (6) Tighten cylinder block connecting bolts in sequence. (Scheme 35) (7) Tighten upper cylinder block bolts. (Scheme 36) (8) Tighten cylinder head bolts in sequence. (Scheme 37) (9) Tighten upper oil pan bolts in sequence. (Scheme 38) (10) Tighten front chain cover bolts in sequence. (Scheme 39) (11) Tighten lower oil pan bolts in sequence. (Scheme 40) (12) Tighten oil pump cover bolts in sequence. (Scheme 41) (13) Tighten oil pump relief valve bolts in sequence. (Scheme 42) (14) Tighten rear chain cover bolts in sequence. (Scheme 43) (15) Tighten to 15 ft. lbs. (20 N.m). (16) Tighten rocker cover bolts in sequence. (Scheme 44)
(1)Tighten camshaft cap bolts in sequence. (Scheme 33)
(2)Tighten front camshaft cap bolts in sequence. (Scheme 34)
(3)Tighten to 89 INCH lbs. (10 N.m).
(4)Tighten to 57 INCH lbs. (6.4 N.m).
(5)Oil bolt threads and seat.
(6)Tighten cylinder block connecting bolts in sequence. (Scheme 35)
(7)Tighten upper cylinder block bolts. (Scheme 36)
(8)Tighten cylinder head bolts in sequence. (Scheme 37)
(9)Tighten upper oil pan bolts in sequence. (Scheme 38)
(10)Tighten front chain cover bolts in sequence. (Scheme 39)
(11)Tighten lower oil pan bolts in sequence. (Scheme 40)
(12)Tighten oil pump cover bolts in sequence. (Scheme 41)
(13)Tighten oil pump relief valve bolts in sequence. (Scheme 42)
(14)Tighten rear chain cover bolts in sequence. (Scheme 43)
(15)Tighten to 15 ft. lbs. (20 N.m).
(16)Tighten rocker cover bolts in sequence. (Scheme 44)

TORQUE SPECIFICATIONS

Scheme 33

Scheme 33
Scheme 33

Scheme 34

Scheme 34
Scheme 34

Scheme 35

Scheme 35
Scheme 35

Scheme 36

Scheme 36
Scheme 36

Scheme 37

Scheme 37
Scheme 37

Scheme 38

Scheme 38
Scheme 38

Scheme 39

Scheme 39
Scheme 39

Scheme 40

Scheme 40
Scheme 40

Scheme 41

Scheme 41
Scheme 41

Scheme 42

Scheme 42
Scheme 42

Scheme 43

Scheme 43
Scheme 43

Scheme 44

Scheme 44
Scheme 44

See also:
• IDLE SPEED & MIXTURE
• 3.0L

More articles — Engine Mechanical - 3.0L 6-CYLINDER