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Engine Mechanical (H4DOTC): Specifications Subaru Forester SJ

Mechanical 11 illustrations ~351 words

SPECIFICATION

EngineModel2.0 L
Cylinder arrangementHorizontally opposed, liquid cooled, 4-cylinder, 4-stroke gasoline engine
Valve system mechanismChain driven, double overhead camshaft, 4-valve/cylinder
Bore x StrokeMm (in)86.0 x 86.0 (3.39 x 3.39)
DisplacementCm 3 (cu in)1, 998 (121.92)
Compression ratio10.6
Compression pressure (at 200 - 300 RPM)KPa (kg/cm 2 , psi)Standard1, 350 - 1, 750 (14 - 18, 196 - 254)
Number of piston ringsCompression ring: 2 Oil ring: 1
Intake valve timingOpenMax. retardATDC 26°
Min. advanceBTDC 42°
CloseMax. retardABDC 82°
Min. advanceABDC 14°
Exhaust valve timingOpenMax. retardBBDC 11°
Min. advanceBBDC 66°
CloseMax. retardATDC 55°
Min. advanceATDC 0°
Cam clearanceMm (in)IntakeStandard0.13 +0.02 -0.03 (0.0051 +0.0008 -0.0012 )
ExhaustStandard0.22±0.02 (0.0087±0.0008)
Idle RPM (select lever in "P" or "N" range)RPMNo loadStandard700±100
A/C ONStandard700 - 835±50
Ignition order1 --> 3 --> 2 --> 4
Ignition timingBTDC/RPMStandard10°±10°/700

Note. OS: Oversize US: Undersize

CamshaftBendingMm (in)Limit0.020 (0.00079)
Cam lobe heightMm (in)IntakeValve drive sectionStandard40.77 - 40.87 (1.605 - 1.609)
Fuel pump drive sectionStandard41.97 - 42.03 (1.652 - 1.655)
ExhaustStandard40.72 - 40.82 (1.603 - 1.607)
Cam base circle diameterMm (in)Standard34.0 (1.339)
Journal outer diameterMm (in)Standard25.946 - 25.963 (1.0215 - 1.0222)
Thrust clearanceMm (in)Standard0.068 - 0.116 (0.0027 - 0.0047)
Oil clearanceMm (in)Standard0.037 - 0.072 (0.0015 - 0.0028)
Cylinder headWarpage (mating surface with cylinder block)Mm (in)Limit0.035 (0.0014)
Grinding limitMm (in)To 98.4 (3.874)
HeightMm (in)Standard98.5 (3.878)
Valve & valve guideValve overall lengthMm (in)Intake103.3 (4.067)
Exhaust95.45 (3.758)
Valve head edge thicknessMm (in)IntakeStandard0.8 - 1.2 (0.031 - 0.047)
ExhaustStandard1.0 - 1.4 (0.039 - 0.055)
Valve stem outer diameterMm (in)IntakeStandard5.455 - 5.470 (0.2148 - 0.2154)
ExhaustStandard5.445 - 5.460 (0.2144 - 0.2150)
Valve guide inner diameterMm (in)Standard5.500 - 5.512 (0.2165 - 0.2170)
Clearance between valve and valve guideMm (in)IntakeStandard0.030 - 0.057 (0.0012 - 0.0022)
ExhaustStandard0.040 - 0.067 (0.0016 - 0.0026)
Valve guide protrusion amountMm (in)Standard11.4 - 11.8 (0.449 - 0.465)
Valve & valve shimValve stem end outer diameterMm (in)IntakeStandard5.455 - 5.470 (0.2148 - 0.2154)
ExhaustStandard5.445 - 5.460 (0.2144 - 0.2150)
Valve shim inner diameterMm (in)Standard5.500 - 5.560 (0.2165 - 0.2189)
Clearance between valve and valve shimMm (in)IntakeStandard0.030 - 0.105 (0.0012 - 0.0041)
ExhaustStandard0.040 - 0.115 (0.0016 - 0.0045)
Valve seatSeating width between valve and valve seatMm (in)IntakeStandard0.8 - 1.6 (0.031 - 0.063)
ExhaustStandard1.1 - 1.7 (0.043 - 0.067)
Seating angle between valve and valve seat45°
Seating position between valve and valve seatValve face center
Valve springFree lengthMm (in)Standard44.03 (1.733)
Tension/spring heightN (kgf, lb)/mm (in)SetStandard182 - 210 (18.56 - 21.41, 40.92 - 47.22)/33.0 (1.299)
LiftStandard440 - 486 (44.87 - 49.56, 98.93 - 109.27)/22.0 (0.866)
SquarenessStandard2.5°, 1.9 mm (0.075 in) or less
Cylinder block & pistonCylinder block warpage (Mating surface with cylinder head)Mm (in)Limit0.025 (0.00098)
Grinding limit of cylinder blockMm (in)To 204.9 (8.067)
Height of cylinder blockMm (in)Standard205.0 (8.071)
Inner diameter of cylinder linerMm (in)Cylinder bore size mark AStandard86.005 - 86.015 (3.3860 - 3.3864)
Cylinder bore size mark BStandard85.995 - 86.005 (3.3856 - 3.3860)
Cylindricality of cylinder linerMm (in)Limit0.03 (0.0012)
Out-of-roundness of cylinder linerMm (in)Limit0.010 (0.0004)
Piston grade pointMm (in)40.0 (1.57)
Piston outer diameterMm (in)Standard SizeGrade AStandard85.985 - 85.995 (3.3852 - 3.3856)
Grade BStandard85.975 - 85.985 (3.3848 - 3.852)
0.25 (0.0098) OSStandard86.225 - 86.245 (3.3947 - 3.3955)
0.50 (0.0197) OSStandard86.475 - 86.495 (3.4045 - 3.4053)
Clearance between cylinder liner and pistonMm (in)Standard0.010 - 0.030 (0.00039 - 0.00118)
Inner diameter of cylinder liner boring limit (diameter)Mm (in)To 86.505 (3.4057)
Piston and piston pinDegree of fitPiston pin must be fitted into position with thumb at 20°C (68°F).
Clearance between piston and piston pinMm (in)Standard0.004 - 0.008 (0.0002 - 0.0003)
Piston ringClosed gapMm (in)Compression ringTop ringStandard0.20 - 0.25 (0.0079 - 0.0098)
Second ringStandard0.40 - 0.50 (0.0157 - 0.0197)
Oil ring (Upper rail and lower rail)Standard0.10 - 0.35 (0.0039 - 0.0138)
Clearance between compression ring and pistonMm (in)Top ringStandard0.040 - 0.080 (0.0016 - 0.0031)
Second ringStandard0.045 - 0.085 (0.0018 - 0.0033)
Connecting rod and connecting rod bearingBend or twist per 100 mm (3.94 in) in lengthMm (in)Limit0.10 (0.0039)
Thrust clearanceMm (in)Standard0.070 - 0.330 (0.0028 - 0.0130)
Connecting rod bearing thickness (at center)Mm (in)Standard sizeStandard1.492 - 1.508 (0.0587 - 0.0594)
0.03 (0.0012) USStandard1.511 - 1.515 (0.0595 - 0.0596)
0.05 (0.0020) USStandard1.521 - 1.525 (0.0599 - 0.0600)
0.25 (0.0098) USStandard1.621 - 1.625 (0.0638 - 0.0640)
Oil clearanceMm (in)Standard0.025 - 0.055 (0.0010 - 0.0022)
Piston pin & connecting rod bushingClearance between piston pin and connecting rod bushingMm (in)Standard0.004 - 0.026 (0.0002 - 0.0010)
Crankshaft and crankshaft bearingBendingMm (in)Limit0.035 (0.0014)
Crankshaft pinCylindricalityMm (in)Limit0.006 (0.0002)
Out-of-roundnessMm (in)Limit0.005 (0.0002)
Grinding limit (dia.)Mm (in)To 49.726 (1.9577)
Crankshaft journalCylindricalityMm (in)Limit0.006 (0.0002)
Out-of-roundnessMm (in)Limit0.005 (0.0002)
Grinding limit (dia.)Mm (in)To 67.735 (2.6667)
Crankshaft pin outer diameterMm (in)Standard sizeStandard49.976 - 50.000 (1.9676 - 1.9685)
0.03 (0.0012) USStandard49.946 - 49.970 (1.9664 - 1.9673)
0.05 (0.0020) USStandard49.926 - 49.950 (1.9656 - 1.9665)
0.25 (0.0098) USStandard49.726 - 49.750 (1.9577 - 1.9587)
Crankshaft journal outer diameterMm (in)Standard sizeStandard67.985 - 68.009 (2.6766 - 2.6775)
0.03 (0.0012) USStandard67.955 - 67.979 (2.6754 - 2.6763)
0.05 (0.0020) USStandard67.935 - 67.959 (2.6746 - 2.6755)
0.25 (0.0098) USStandard67.735 - 67.759 (2.6667 - 2.6677)
Crankshaft bearing thickness (at center)Mm (in)#1, #2, #3, #4Standard sizeStandard2.495 - 2.513 (0.0982 - 0.0989)
0.03 (0.0012) USStandard2.519 - 2.522 (0.0992 - 0.0993)
0.05 (0.0020) USStandard2.529 - 2.532 (0.0996 - 0.0997)
0.25 (0.0098) USStandard2.629 - 2.632 (0.1035 - 0.1036)
#5Standard sizeStandard2.493 - 2.511 (0.0981 - 0.0989)
0.03 (0.0012) USStandard2.517 - 2.520 (0.0991 - 0.0992)
0.05 (0.0020) USStandard2.527 - 2.530 (0.0995 - 0.0996)
0.25 (0.0098) USStandard2.627 - 2.630 (0.1034 - 0.1035)
Thrust clearanceMm (in)Standard0.130 - 0.308 (0.00512 - 0.01213)
Oil clearanceMm (in)Standard0.013 - 0.031 (0.00051 - 0.00122)
NOTE: OS: Oversize US: Undersize
NOTE
OS: Oversize US: Undersize

Scheme 491

Scheme 491: CRANK PULLEY

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

T: < Ref. to INSTALLATION, Crank Pulley. >

Scheme 492

Scheme 492: TIMING CHAIN & CAMSHAFT

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

T1: 6.4 (0.7, 4.7)

T2: 18 (1.8, 13.3)

Scheme 493

Scheme 493: CHAIN COVER

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

T1: 6.4 (0.7, 4.7)

T2: 18 (1.8, 13.3)

T3: < Ref. to INSTALLATION, Chain Cover. >

Scheme 494

Scheme 494: ROCKER COVER

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

T: < Ref. to INSTALLATION, Rocker Cover. >

Scheme 495

Scheme 495: CAM CARRIER

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

T1: < Ref. to CAM CARRIER RH, ASSEMBLY, Cam Carrier. >

T2: < Ref. to ASSEMBLY, Cam Carrier. >

T3: < Ref. to INSTALLATION, Cam Carrier. >

Scheme 496

Scheme 496: CYLINDER HEAD

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

T: < Ref. to INSTALLATION, Cylinder Head. >

Scheme 497

Scheme 497: VALVE ASSEMBLY

Scheme 498

Scheme 498: CYLINDER BLOCK 1

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

T1: 6.4 (0.7, 4.7)

T2: 10 (1.0, 7.4)

T3: 21 (2.1, 15.5)

T4: 25 (2.5, 18.4)

T5: 41.7 (4.3, 30.8)

T6: < Ref. to CYLINDER BLOCK, ASSEMBLY, Cylinder Block. >

T7: < Ref. to INSTALLATION, Cylinder Block. >

T8: < Ref. to OIL PAN, INSTALLATION, Oil Pan and Strainer. >

Scheme 499

Scheme 499: CYLINDER BLOCK 2

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

T: < Ref. to INSTALLATION, Cylinder Block. >

Scheme 500

Scheme 500: CRANKSHAFT AND PISTON

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

T1: < Ref. to INSTALLATION, Cylinder Block. >

T2: < Ref. to INSTALLATION, Drive Plate. >

Scheme 501

Scheme 501: ENGINE MOUNTING

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

T1: 35 (3.6, 25.8)

T2: 45 (4.6, 33.2)

Refer to "Cylinder Head" for removal and installation procedures of the intake and exhaust valves. < Ref. to REMOVAL, Cylinder Head. > < Ref. to INSTALLATION, Cylinder Head. >

Refer to "Cylinder Block" for removal and installation procedures of pistons. < Ref. to REMOVAL, Cylinder Block. > < Ref. to INSTALLATION, Cylinder Block. >

Refer to "Cylinder Block" for removal and installation procedures of connecting rod.

< Ref. to REMOVAL, Cylinder Block. > < Ref. to INSTALLATION, Cylinder Block. >

Refer to "Cylinder Block" for removal and installation procedures of the crankshaft. < Ref. to REMOVAL, Cylinder Block. > < Ref. to INSTALLATION, Cylinder Block. >

See also:
CLEAR MEMORY MODE