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Engine Mechanical - 2.5L 4-CYLINDER - SOHC: Specifications Subaru Forester SF рестайлинг

Mechanical

Crankcase Capacity

Oil capacity is 4.8 qts. (4.5L) with filter.

TORQUE SPECIFICATIONS

ApplicationFt. Lbs. (N.m)
Camshaft Bearing Cap Support Bolt(1)
Camshaft Sprocket Bolt58 (78)
Connecting Rod Cap Nut32 (44)
Crankshaft Pulley Bolt131 (177)
Cylinder Block Bolt
6 mm Bolt No. 8(2)
6 & 8-mm Bolts17-20 (23-27)
10-mm Bolts32-37 (44-50)
Cylinder Block Service Hole Plug51 (69)
Cylinder Head Bolt
Step 1(3) 21 (29)
Step 2(3) 51 (69)
Step 3Loosen 180 Degrees
Step 4Loosen 180 Degrees
Step 5(4)
Step 6(3) Tighten 80-90 Degrees
Step 7(3) Tighten 80-90 Degrees
Flywheel Bolt51-55 (69-75)
Intake Manifold Bolt17-20 (23-27)
Timing Belt Idler Bolt29 (39)
Timing Belt Tension Adjuster Bolt29 (39)
Timing Belt Tensioner Bracket Bolt18 (25)
INCH Lbs. (N.m)
Oil Pan Bolt44 (5.0)
Oil Pump Bolt58 (6.5)
Timing Belt Cover Bolt44 (5.0)
Valve Cover Bolt44 (5.0)
Water Pump Bolt(5) 106 (12.0)
(1) See CAMSHAFT under REMOVAL & INSTALLATION for bolt tightening procedure. (2) Tighten bolt to 57 INCH lbs. (6.4 N.m). (3) Tighten bolts in sequence. (Схема №4) (4) Tighten bolt Nos. 1 and 2 to 25 ft. lbs. (34 N.m), and tighten bolts No. 3, 4, 5 and 6 to 11 ft. lbs. (15 N.m). (Схема №4) (5) Tighten in 2 steps.
(1)See CAMSHAFT under REMOVAL & INSTALLATION for bolt tightening procedure.
(2)Tighten bolt to 57 INCH lbs. (6.4 N.m).
(3)Tighten bolts in sequence. (Схема №4)
(4)Tighten bolt Nos. 1 and 2 to 25 ft. lbs. (34 N.m), and tighten bolts No. 3, 4, 5 and 6 to 11 ft. lbs. (15 N.m). (Схема №4)
(5)Tighten in 2 steps.

TORQUE SPECIFICATIONS

GENERAL SPECIFICATIONS

ApplicationIn. (mm)
Displacement150 Cu. In. (2.5L)
Bore3.92 (99.5)
Stroke3.11 (79.0)
Compression Ratio10.0:1
Fuel SystemSFI

GENERAL SPECIFICATIONS

CRANKSHAFT, MAIN BEARINGS & CONNECTING ROD BEARINGS SPECIFICATIONS

ApplicationIn. (mm)
Crankshaft
End Play
Standard.0012-.0045 (.030-.115)
Service Limit.0098 (.250)
Runout.0014 (.035)
Main Bearings
Journal Diameter
Standard2.3619-2.3625 (59.992-60.008)
.0012" (.03 mm) Undersize2.3607-2.3613 (59.962-59.978)
.0020" (.05 mm) Undersize2.3599-2.3605 (59.942-59.958)
.0098" (.025 mm) Undersize2.3520-2.3527 (59.742-59.758)
Journal Grinding Limit.0098 (.250)
Journal Out-Of-Round.0008 (.020)
Journal Taper.0028 (.070)
Oil Clearance
Standard.0004-.0012 (.010-.030)
Service Limit.0016 (.040)
Connecting Rod Bearings
Journal Diameter
Standard2.0466-2.0472 (51.984-52.000)
.0012" (.03 mm) Undersize2.0454-2.0461 (51.954-51.970)
.0020" (.05 mm) Undersize2.0446-2.0453 (51.934-51.950)
.0098" (.25 mm) Undersize2.0368-2.0374 (51.734-51.750)
Journal Grinding Limit.0098 (.250)
Journal Out-Of-Round.0008 (.020)
Journal Taper.0028 (.07)
Oil Clearance
Standard.0008-.0018 (.020-.046)
Service Limit.002 (.05)

CRANKSHAFT, MAIN & CONNECTING ROD BEARINGS

CONNECTING RODS SPECIFICATIONS

ApplicationIn. (mm)
Bore Diameter
Crankpin Bore(1)
Piston Pin Bore(1)
Maximum Bend(2)
Maximum Twist(2)
Side Play
Standard.0028-.0130 (.070-.330)
Service Limit.016 (.40)
(1) Information is not available from manufacturer. (2) Maximum bend or twist per 3.94" (100 mm) of length is .0039" (.100 mm).
(1)Information is not available from manufacturer.
(2)Maximum bend or twist per 3.94" (100 mm) of length is .0039" (.100 mm).

CONNECTING RODS

PISTONS, PISTON PINS & PISTON RINGS SPECIFICATIONS

ApplicationIn. (mm)
Pistons
Clearance
Standard.0004-.0012 (.010-.030)
Service Limit.0020 (.050)
Diameter (1)
Standard
"A"3.9167-3.9171 (99.485-99.495)
"B"3.9163-3.9167 (99.475-99.485)
.0098" (0.25 mm) Oversize3.9262-3.9266 (99.725-99.735)
.0197" (0.50 mm) Oversize3.9360-3.9364 (99.975-99.985)
Pins
Diameter(2)
Piston Pin Fit(3)
Piston-To-Pin Clearance.0002-.0003 (.005-.008)
Rings
No. 1
End Gap
Standard.0079-.0138 (.200-.350)
Service Limit.039 (1.00)
Side Clearance
Standard..0016-.0031 (.040-.080)
Service Limit.0059 (0.15)
No. 2
End Gap
Standard.0138-.0197 (.350-.500)
Service Limit.039 (1.00)
Side Clearance
Standard.0012-.0028 (.030-.070)
Service Limit.0059 (.150)
No. 3 (Oil)
End Gap
Standard.0079-.0276 (.200-.700)
Service Limit.059 (1.50)
Side Clearance(2)
(1) Measure at 1.457" (37.00 mm) from top of piston. (2) Information is not available from manufacturer. (3) Thumb press fit at 68°F (20°C).
(1)Measure at 1.457" (37.00 mm) from top of piston.
(2)Information is not available from manufacturer.
(3)Thumb press fit at 68°F (20°C).

PISTONS, PINS & RINGS

CYLINDER BLOCK SPECIFICATIONS

ApplicationIn. (mm)
Cylinder Bore
Standard Diameter
"A"3.9175-3.9179 (99.505-99.515)
"B"3.9171-3.9175 (99.495-99.505)
Maximum Boring Limit.020 (.50)
Maximum Deck Warpage.002 (.05)
Maximum Surface Grinding Limit.004 (.10)
Maximum Taper.002 (.05)
Out-Of-Round
Standard.0004 (.010)
Service Limit.0020 (.050)

CYLINDER BLOCK

ENGINE VALVES & VALVE SPRINGS SPECIFICATIONS

ApplicationIn. (mm)
Intake Valves
Face Angle45°
Head Diameter(1)
Margin
Standard.039 (1.00)
Service Limit.024 (0.60)
Stem Diameter
Standard.2343-.2348 (5.950-5.965)
Exhaust Valves
Face Angle45°
Head Diameter(1)
Margin
Standard.047 (1.20)
Service Limit.024 (0.60)
Stem Diameter
Standard.2341-.2346 (5.945-5.960)
Valve Springs
Free Length2.138 (54.300)
Out-Of-Square.094 (2.40)
Lbs. @ In. (kg @ mm)
Pressure
Valve Closed48.3-55.3 @ 1.772 (21.9-25.1 @ 45.00)
Valve Open118.4-130.8 @ 1.366 (53.7-59.3 @ 34.7)
(1) Information is not available from manufacturer.
(1)Information is not available from manufacturer.

VALVES & VALVE SPRINGS

CYLINDER HEAD SPECIFICATIONS

ApplicationIn. (mm)
Cylinder Head
Height3.839 (97.50)
Maximum Warpage(1) .002 (.05)
Camshaft Journal Bore Diameter1.2598-1.2605 (32.000-32.018)
Valve Seats
Intake Valve
Seat Angle45°
Seat Width
Standard.039 (1.00)
Service Limit.067 (1.70)
Exhaust Valve
Seat Angle45°
Seat Width
Standard.055 (1.40)
Service Limit.083 (2.10)
Valve Guides
Intake Valve
Valve Guide I.D..2362-.2367 (6.000-6.012)
Valve Guide Installed Height.787-.807 (20.0-20.5)
Valve Stem-To-Guide Oil Clearance
Standard.0014-.0024 (.035-.062)
Service Limit.0059 (.150)
Exhaust Valve
Valve Guide I.D..2362-.2367 (6.000-6.012)
Valve Guide Installed Height.650-.669 (16.5-17.0)
Valve Stem-To-Guide Oil Clearance
Standard.0016-.0026 (.040-.067)
Service Limit.0059 (.150)
(1) Maximum resurface limit is .012" (0.30 mm).
(1)Maximum resurface limit is .012" (0.30 mm).

CYLINDER HEAD

CAMSHAFT SPECIFICATIONS

ApplicationIn. (mm)
End Play
Standard.0012-.0035 (.030-.090)
Service Limit.0039 (.100)
Journal Diameter1.2570-1.2577 (31.928-31.945)
Journal Runout.0010 (.025)
Oil Clearance
Standard.0022-.0035 (.055-.090)
Service Limit.0039 (.100)
Lobe Height
Intake
Standard1.5545-1.5585 (39.485-39.585)
Service Limit1.5506 (39.385)
Exhaust
Standard1.5455-1.5495 (39.257-39.357)
Service Limit1.5416 (39.157)
Thrust
Standard.0012-.0035 (.030-.090)
Service Limit.0039 (.100)

CAMSHAFT

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