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4.0L Engine: Specifications Jeep Cherokee II рестайлинг

Mechanical

Crankcase Capacity

Oil capacity is 6.0 qts. (5.7L) with filter change.

TORQUE SPECIFICATIONS

ApplicationFt. Lbs. (N.m)
Camshaft Sprocket Preload Bolt
199880 (108)
199950 (68)
Connecting Rod Cap Nut33 (45)
Cylinder Head Bolts (1)
Stage 122 (30)
Stage 245 (61)
Stage 3110 (149)
Exhaust Manifold Bolts (2)
Bolts No. 1-5 & No. 8-1124 (33)
Bolts No. 6 & 723 (31)
Fan Bolt18 (24)
Flexplate-To-Crankshaft Bolts55 (75)
Flywheel-To-Crankshaft Bolts105 (142)
Intake Manifold Bolts (2)
Bolts No. 1-5 & No. 8-1124 (33)
Bolts No. 6 & 723 (31)
Main Bearing Brace Bolts35 (47)
Main Bearing Cap Bolts
Stage 140 (54)
Stage 270 (95)
Stage 380 (108)
Oil Pump Retaining Bolts17 (23)
Rocker Arm Bolts21 (29)
Starter Bolts33 (45)
Vibration Damper Bolt (3)80 (108)
Water Pump-To-Block Bolts17-23 (23-31)
Water Pump-To-Chain Cover30 (41)
INCH Lbs. (N.m)
Front Cover Bolts
1/4" X 2060 (7)
5/16" X 18(4)
Oil Pan Bolts
1/4" X 2084 (9.5)
5/16" X 18(5)
Oil Pump Cover Bolts70 (8)
Valve Cover Bolts85 (10)
(1) All bolts except No. 11. Tighten bolt No. 11 to 100 ft. lbs. (136 N.m). (Схема №3) (2) Tighten in sequence. (Схема №2) (3) With bolt cleaned and threads lubricated with oil. (4) Tighten to 16 ft. lbs. (16 N.m). (5) Tighten to 11 ft. lbs. (15 N.m).
(1)All bolts except No. 11. Tighten bolt No. 11 to 100 ft. lbs. (136 N.m). (Схема №3)
(2)Tighten in sequence. (Схема №2)
(3)With bolt cleaned and threads lubricated with oil.
(4)Tighten to 16 ft. lbs. (16 N.m).
(5)Tighten to 11 ft. lbs. (15 N.m).

TORQUE SPECIFICATIONS

GENERAL SPECIFICATIONS

ApplicationSpecification
Displacement242 Cu. In. (4.0L)
Bore3.88" (98.5 mm)
Stroke3.41" (87.0 mm)
Compression Ratio8.8:1
Fuel SystemSFI

GENERAL SPECIFICATIONS

CRANKSHAFT, MAIN BEARINGS & CONNECTING ROD BEARINGS SPECIFICATIONS

ApplicationIn. (mm)
Crankshaft
End Play.0015-.0065 (.038-.165)
Runout(1)
Main Bearings
Journal Diameter
No. 1-62.4996-2.5001 (63.489-63.502)
No. 72.4980-2.4995 (63.449-63.487)
Journal Out-Of-Round.0005 (.013)
Journal Taper.0005 (.013)
Oil Clearance.0010-.0025 (.025-.064)
Connecting Rod Bearings
Journal Diameter2.0934-2.0955 (53.172-53.226)
Journal Out-Of-Round.0005 (.013)
Journal Taper.0005 (.013)
Oil Clearance.001-.003 (.025-.070)
(1) Information is not available from manufacturer.
(1)Information is not available from manufacturer.

CRANKSHAFT, MAIN & CONNECTING ROD BEARINGS

CONNECTING RODS SPECIFICATIONS

ApplicationIn. (mm)
Bore Diameter
Pin Bore.9288-.9298 (23.591-23.617)
Crankpin Bore2.2080-2.2085 (56.083-56.096)
Center-To-Center Length6.123-6.127 (155.52-155.63)
Maximum Bend.001(.025) Per 1" (25.40)
Maximum Twist.001(.025) Per 1" (25.40)
Side Play.010-.019 (.25-.48)

CONNECTING RODS

PISTONS, PISTON PINS & PISTON RINGS SPECIFICATIONS

ApplicationIn. (mm)
Pistons
Clearance (1998)(1) .0013-.0021 (.033-.053)
Clearance (1999).0008-.0015 (.018-.038)
Diameter(2)
Pins
Diameter.9306-.9307 (23.637-23.640)
Piston Fit (1998).0003-.0007 (.007-.018)
Piston Fit (1999).0005-.0009 (.0102-.0208)
Rod FitPress Fit
Rings
End Gap
No. 1.009-.024 (.229-.610)
No. 2.019-.038 (.483-.965)
No. 3 (Oil).010-.060 (.254-1.500)
Side Clearance
No. 1 & 2.0017-.0033 (.042-.084)
No. 3 (Oil).0024.0083 (.06-.21)
(1) Preferred piston clearance is .0013-.0015" (.033-.038 mm). (2) Information is not available from manufacturer. Replace pistons if piston clearance exceeds .0025" (.064 mm).
(1)Preferred piston clearance is .0013-.0015" (.033-.038 mm).
(2)Information is not available from manufacturer. Replace pistons if piston clearance exceeds .0025" (.064 mm).

PISTONS, PINS & RINGS

CYLINDER HEAD SPECIFICATIONS

ApplicationSpecification
Cylinder Head Height(1)
Maximum Warpage.008" (.20 mm)
Valve Seats
Intake Valve
Seat Angle44.5°
Seat Width.040-.060" (1.02-1.52 mm)
Maximum Seat Runout.0025" (.064 mm)
Seat Bore Diameter(1)
Exhaust Valve
Seat Angle44.5°
Seat Width.040-.060" (1.02-1.52 mm)
Maximum Seat Runout.0025" (.064 mm)
Seat Bore Diameter(1)
Valve Guides
Intake Valve
Valve Guide I.D..313-314" (7.95-7.97 mm)
Valve Stem-To-Guide Oil Clearance.001-.003" (.03-.08 mm)
Exhaust Valve
Valve Guide I.D..313-314" (7.95-7.97 mm)
Valve Stem-To-Guide Oil Clearance.001-.003" (.03-.08 mm)
(1) Information is not available from manufacturer.
(1)Information is not available from manufacturer.

CYLINDER HEAD

CAMSHAFT SPECIFICATIONS

ApplicationIn. (mm)
Bore Diameter(1)
End Play(1)
Journal Diameter
No. 12.029-2.030 (51.54-51.56)
No. 22.019-2.020 (51.28-51.31)
No. 32.009-2.010 (51.03-51.05)
No. 41.999-2.000 (50.78-50.80)
Journal Runout(2)
Lobe Height(1)
Lobe Lift(1)
Oil Clearance.001-.003 (.03-.08)
(1) Information is not available from manufacturer. (2) Information is not available from manufacturer. Manufacturer specifies .001" (.03 mm) maximum base circle runout.
(1)Information is not available from manufacturer.
(2)Information is not available from manufacturer. Manufacturer specifies .001" (.03 mm) maximum base circle runout.

CAMSHAFT

VALVE LIFTERS SPECIFICATIONS

ApplicationIn. (mm)
Bore Diameter.9055-.9065 (22.999-23.025)
Lifter Diameter.9040-.9045 (22.962-22.974)
Oil Clearance.001-.0025 (.025-.063)

VALVE LIFTERS

CYLINDER BLOCK SPECIFICATIONS

ApplicationIn. (mm)
Cylinder Bore
Standard Diameter3.8759-3.8775 (98.447-98.488)
Maximum Taper.001 (.03)
Maximum Out-Of-Round.001 (.03)
Minimum Deck Height9.450-9.456 (240.03-240.18)
Maximum Warpage.008 (.20)

CYLINDER BLOCK

ENGINE VALVES & VALVE SPRINGS SPECIFICATIONS

ApplicationSpecification
Intake Valves
Face Angle45°
Head Diameter1.905-1915" (48.387-48.641 mm)
Minimum Margin.031" (.787 mm)
Minimum Refinish Length4.822" (122.47 mm)
Stem Diameter.312" (7.92 mm)
Valve Tip Maximum Refinish.010" (.25 mm)
Exhaust Valves
Face Angle45°
Head Diameter1.495-1.505" (37.973-38.227 mm)
Minimum Margin.031" (.787 mm)
Minimum Refinish Length4.837" (122.86 mm)
Stem Diameter.312" (7.92 mm)
Valve Tip Maximum Refinish.010" (.25 mm)
Valve Springs
Free Length1.876" (47.65 mm)
Installed Height(1)
Out-Of-Square(1)
Lbs. @ In. (kg @ mm)
Spring Pressure
1998 Engines
Valve Closed61-69 @ 1.640 (27.63-31.30 @ 41.66)
Valve Open83-89 @ 1.216 (86.18-95.25 @ 30.89)
1999 Engines
Valve Closed71-79 @ 1.640 (32.2-35.8 @ 41.66)
Valve Open202-218 @ 1.216 (91.6-98.8 @ 30.89)
(1) Information is not available from manufacturer.
(1)Information is not available from manufacturer.

VALVES & VALVE SPRINGS

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