Contents Wiring diagrams Section: Mechanical All sections

3.9L V6 - VIN [X]: Specifications Dodge Dakota WS

Crankcase Capacity

Oil capacity with oil filter is 4.5 qts. (4.3L).

TORQUE SPECIFICATIONS

ApplicationFt. Lbs. (N.m)
Axle Bracket-To-Bellhousing Bolt (Dakota 4WD)65 (88)
Axle Shaft Nut (Dakota 4WD)180 (244)
Axle Shaft-To-Differential Flange Bolt (Dakota 4WD)66 (90)
Axle-To-Insulator Bolt (Dakota 4WD)75 (102)
Camshaft Sprocket Bolt50 (68)
Camshaft Thrust Plate Bolt18 (24)
Clutch Housing-To-Cylinder Block Bolt
Dakota & RWD Van
(1)20-40 (27-54)
(2)35-65 (47-88)
All Others40 (54)
Connecting Rod Bolt45 (61)
Crankshaft Pulley Bolt18 (24)
Cylinder Head Bolt (3)
Step 150 (68)
Step 2105 (143)
Step 3 (Verify Torque)105 (143)
Differential Pinion Nose Bracket-To-Adapter Bolt (Dakota 4WD)65 (88)
Differential Pinion Nose Bracket-To-Bellhousing Bolt (Dakota 4WD)65 (88)
Engine Mount Bracket-To-Frame Rail Bolt (Dakota 2WD)30 (41)
Engine Mount Through-Bolt
Dakota 2WD50 (68)
Dakota 4WD75 (102)
Engine Mount-To-Cylinder Block Bolt (Dakota)30 (41)
Engine Mount-To-Frame Bracket Bolt/Nut
Pickup75 (102)
RWD Van65 (88)
Exhaust Manifold Bolt & Nut25 (34)
Flywheel/Flexplate-To-Crankshaft Bolt55 (75)
Front Cover Bolt30 (41)
Main Bearing Cap Bolt85 (115)
Oil Filter Adapter Stud50 (68)
Oil Pan Bolt18 (24)
Oil Pump Bolt30 (41)
Rocker Arm Bolt21 (28)
Shift Motor Bolt (Dakota 4WD)65 (88)
Spark Plug30 (41)
Transfer Case Yolk Bolt (Dakota 4WD)20 (27)
Vibration Damper Bolt135 (183)
Water Pump Bolt30 (41)
Wheel Lug Nut
1/2"85-105 (115-142)
5/8"177-225 (240-305)
INCH Lbs. (N.m)
Intake Manifold Bolt
Step 1 (4) (Bolts No. 1 & 2)71 (8)
Step 2 (Bolts 3 Through 12)71 (8)
Step 3 (Verify Torque)71 (8)
Step 4 (Torque All Bolts)142 (16)
Step 5 (Verify Torque)142 (16)
Intake Manifold Plenum Pan Bolt
Step 127 (3)
Step 244 (5)
Step 389 (10)
Step 4 (Verify Torque)89 (10)
Oil Pump Cover Bolt97 (11)
Valve Cover Bolts97 (11)
(1) Bolts through clutch housing into cylinder block. (2) Bolts through cylinder block into clutch housing. (3) Tighten bolts in sequence. (Схема №4) (4) Tighten bolts in alternating steps of 12 INCH lbs. (1.4 N.m) to 71 INCH lbs. (8 N.m). (Схема №3)
(1)Bolts through clutch housing into cylinder block.
(2)Bolts through cylinder block into clutch housing.
(3)Tighten bolts in sequence. (Схема №4)
(4)Tighten bolts in alternating steps of 12 INCH lbs. (1.4 N.m) to 71 INCH lbs. (8 N.m). (Схема №3)

TORQUE SPECIFICATIONS

GENERAL SPECIFICATIONS

ApplicationSpecification
Displacement239 Cu. In. (3.9L)
Bore3.91" (99.3 mm)
Stroke3.31" (84.1 mm)
Compression Ratio9.1:1
Fuel SystemPFI
Horsepower @ RPM175 @ 4800
Torque Ft. Lbs. @ RPM225 @ 3200

GENERAL SPECIFICATIONS

CRANKSHAFT, MAIN BEARINGS & CONNECTING ROD BEARINGS SPECIFICATIONS

ApplicationIn. (mm)
Crankshaft End Play
Standard.002-.007 (.05-.18)
Wear Limit.010 (.25)
Main Bearings
Journal Diameter2.4995-2.5005 (63.487-63.513)
Journal Out-Of-Round.001 (.03)
Journal Taper.001 (.03)
Oil Clearance
Journal No. 1
Standard.0005-.0015 (.013-.038)
Wear Limit.0015 (.038)
All Others
Standard.0005-.0020 (.013-.051)
Wear Limit.0025 (.064)
Connecting Rod Bearings
Journal Diameter2.124-2.125 (53.950-53.975)
Journal Out-Of-Round.001 (.03)
Journal Taper.001 (.03)
Oil Clearance
No. 1.0005-.0015 (.013-.038)
Nos. 2, 3, & 4.0005-.0020 (.013-.051)
Wear Limit.0025 (.064)
Side Play.006-.014 (.15-.36)

CRANKSHAFT, MAIN & CONNECTING ROD BEARINGS

PISTONS, PISTON PINS & PISTON RINGS SPECIFICATIONS

ApplicationIn. (mm)
Piston Clearance.0005-.0015 (.013-.038)
Pins
Diameter.9841-9843 (24.996-25.001)
Piston Fit.00025-.00075 (.0064-.0191)
Rod Fit(1) .0007-.0014 (.018-.036)
Rings
No. 1 & No. 2
End Gap.010-.020 (.25-.51)
Side Clearance.0015-.0030 (.038-.076)
No. 3 (Oil)
End Gap.010-.050 (.25-1.27)
Side Clearance(2) .0080 (.203) Max.
(1) Interference fit. (2) Steel rail oil ring should be free in groove, but clearance maximum specification.
(1)Interference fit.
(2)Steel rail oil ring should be free in groove, but clearance maximum specification.

PISTONS, PINS & RINGS

CYLINDER BLOCK SPECIFICATIONS

ApplicationIn. (mm)
Cylinder Bore
Standard Diameter3.910-3.912 (99.31-99.36)
Maximum Taper.010 (.25)
Maximum Out-Of-Round.005 (.13)
Maximum Oversize.040 (1.016)

CYLINDER BLOCK

ENGINE VALVES & VALVE SPRINGS SPECIFICATIONS

ApplicationSpecification
Intake Valves
Face Angle43.25-43.75°
Head Diameter1.916" (48.66 mm)
Minimum Margin.047" (1.19 mm)
Stem Diameter.311-.312" (7.90-7.93)
Exhaust Valves
Face Angle43.25-43-75°
Head Diameter1.624" (41.25 mm)
Minimum Margin.047" (1.19 mm)
Stem Diameter.311-.313" (7.90-7.92)
Valve Springs
Free Length1.967" (49.96 mm)
Installed Height1.640" (41.66 mm)
Pressure
Valve Closed85 Lbs. @ 1.640 In. (39 kg @ 41.66 mm)
Valve Open200 Lbs. @ 1.212 In. (91 kg @ 30.78 mm)

VALVES & VALVE SPRINGS

CYLINDER HEAD SPECIFICATIONS

ApplicationSpecification
Maximum Warpage.00075" Per 1" (.0191 mm Per 25 mm)
Valve Seats
Intake Valve
Seat Angle44.25-44.75°
Seat Width.040-.060" (1.0-1.5 mm)
Maximum Seat Runout.003" (.08 mm)
Exhaust Valve
Seat Angle44.25-44.75°
Seat Width.060-.080" (1.5-2.0 mm)
Maximum Seat Runout.003" (.08 mm)
Valve Guides
Intake Valve
Valve Guide I.D..313-.314" (7.95-7.98)
Valve Stem-To-Guide Oil Clearance
Standard.001-.003" (.02-.08 mm)
Wear Limit(1) .017" (.43 mm)
Exhaust Valve
Valve Guide I.D..313-.314" (7.95-7.98)
Valve Stem-To-Guide Oil Clearance
Standard.001-.003" (.02-.08 mm)
Wear Limit(1) .017" (.43 mm)
(1) Specification applies to method obtained by rocking valve stem in valve guide.
(1)Specification applies to method obtained by rocking valve stem in valve guide.

CYLINDER HEAD

CAMSHAFT SPECIFICATIONS

ApplicationIn. (mm)
End Play.002-.010 (.05-.25)
Camshaft Bearing I.D.
No. 12.000-2.001 (50.80-50.82)
No. 21.984-1.985 (50.39-50.42)
No. 31.953-1.954 (49.61-49.63)
No. 41.5625-1.5635 (39.688-39.713)
Journal Diameter
No. 11.998-1.999 (50.75-50.77)
No. 21.982-1.983 (50.34-50.37)
No. 31.951-1.952 (49.56-49.58)
No. 41.5605-1.5615 (39.637-39.662)
Oil Clearance
Standard.001-.003 (.02-.08)
Wear Limit.005 (.13)
(1) Bearings are numbered from front of camshaft.
(1)Bearings are numbered from front of camshaft.

CAMSHAFT (1)

VALVE LIFTERS SPECIFICATIONS

ApplicationIn. (mm)
Bore Diameter.9051-.9059 (22.990-23.010)
Lifter Diameter(1) .9035-.9040 (22.949-22.962)
Oil Clearance.0011-.0024 (.028-.061)
Push Rod Length6.794-6.814 (172.57-173.08)
(1) Standard diameter valve lifter is listed. Oversize valve lifters are available in .001" (.02 mm), .008" (.20 mm) and .030" (.76 mm).
(1)Standard diameter valve lifter is listed. Oversize valve lifters are available in .001" (.02 mm), .008" (.20 mm) and .030" (.76 mm).

VALVE LIFTERS