Dodge Dakota (R1). Manual - part 472

 

  Index      Dodge     Dodge Dakota (R1) - service repair manual 2000 year

 

Search            

 

 

 

 

 

 

 

  

 

Content   ..  470  471  472  473   ..

 

 

Dodge Dakota (R1). Manual - part 472

 

 

DESCRIPTION

N·m

In.

Ft.

Bolts (2wd)

Generator—Mounting
Bolt

41

—

30

Intake Manifold—Bolts

Refer to Procedure

Oil Pan—Bolts

24

215

—

Oil Pan—Drain Plug

34

—

25

Oil Pump—Mounting
Bolts

41

—

30

Oil Pump Cover—Bolts

11

95

—

Rear Insulator to
Bracket—

68

—

50

Through-Bolt (2WD)

Rear Insulator to
Crossmember

41

—

30

Support Bracket—Nut
(2WD)

Rear Insulator to

68

—

50

Crossmember—Nuts
(4WD)

Rear Insulator to
Transmission

68

—

50

— Bolts (4WD)

Rear Insulator Bracket—
Bolts

68

—

50

(4WD Automatic)

Rear Support Bracket to

41

—

30

Crossmember Flange—
Nuts

Rear Support Plate to
Transfer

41

—

30

Case—Bolts

Rocker Arm—Bolts

28

—

21

Spark Plugs

41

—

30

Starter Motor—Mounting
Bolts

68

—

50

Thermostat Housing—
Bolts

25

225

—

Throttle Body—Bolts

23

200

—

Torque Converter Drive
Plate—

31

270

—

Bolts

Transfer Case to
Insulator

204

—

150

Mounting Plate—Nuts

DESCRIPTION

N·m

In.

Ft.

Transmission Support
Bracket

68

—

50

—Bolts (2WD)

Vibration Damper—Bolt

183

—

135

Water Pump to Timing
Chain

41

—

30

Case Cover— Bolts

3.9L ENGINE

GENERAL DESCRIPTION

DESCRIPTION

SPECIFICATION

Engine Type

90° V-6 OHV

Bore and Stroke

99.3 x 84.0 mm

(3.91 x 3.31 in.)

Displacement

3.9L (238 c.i.)

Compression Ratio

9.1:1

Firing Order

1–6–5–4–3–2

Cylinder Compression

689.5 kPa

Pressure (Min.)

(100 psi)

CAMSHAFT

Bearing Diameter (Inside)

No. 1

50.800 - 50.825 mm

(2.000 - 2.001 in.)

No. 2

50.394 - 50.825 mm

(1.984 - 1.985 in.)

No. 3

49.606 - 49.632 mm

(1.953 - 1.954 in.)

No. 4

39.688 - 39.713 mm

(1.5265 - 1.5653 in.)

Journal Diameter

No. 1

50.749 - 50.775 mm

(1.998 - 1.999 in.)

No. 2

50.343 - 50.368 mm

(1.982 - 1.983 in.)

No. 3

49.555 - 49.581 mm

(1.951 - 1.952 in.)

No. 4

39.637 - 39.662 mm

(1.5605 - 1.5615 in.)

9 - 76

ENGINE 3.9L

AN

ENGINE 3.9L (Continued)

DESCRIPTION

SPECIFICATION

Bearing to Journal
Clearance

Standard

0.0254 - 0.0762 mm

(0.001 - 0.003 in.)

Max Allowable

0.127 mm

(0.005 in.)

End Play

0.051 - 0.254 mm

(0.002 - 0.010 in.)

CONNECTING RODS

Piston Pin Bore Diameter

24.940 - 24.978 mm

(0.9819 - 0.9834 in.)

Side Clearance

(Two Rods)

0.152 - 0.356 mm

(0.006 - 0.014 in.)

Total Weight

762 grams

(25.61 oz.)

CRANKSHAFT

Rod Journal Diameter

53.950 - 53.975 mm

(2.124 - 2.125 in.)

Rod Journal Out of
Round

(Max)

0.0254 mm

(0.001 in.)

Rod Journal Taper

(Max)

0.0254 mm

(0.001 in.)

Rod Journal Bearing
Clearance

0.013 - 0.056 mm

(0.0005 - 0.0022 in.)

Rod Journal Service Limit

0.08 mm

(0.003 in.)

Main Journal Diameter

63.487 - 63.513 mm

(2.4995 - 2.5005 in.)

Main Journal Out of
Round

(Max)

0.0254 mm

(0.001 in.)

DESCRIPTION

SPECIFICATION

Main Journal Taper

(Max)

0.0254 mm

(0.001 in.)

Main Journal Beraing
Clearance

No. 1

0.013 - 0.038 mm

(0.0005 - 0.0015 in.)

No. 2 - 4

0.013 - 0.051 mm

(0.0005 - 0.0020 in.)

Service Limit

0.064 mm

(0.0025 in.)

End Play

0.051 - 0.178 mm

(0.002 - 0.007 in.)

End Play Service Limit

0.254 mm

(0.010 in.)

CYLINDER BLOCK

Cylinder Bore Diameter

99.308 - 99.371 mm

(3.9098 - 3.9122 in.)

Cylinder Bore Out of
Round and

taper

(Max)

0.025 mm

(0.001 in.)

Lifter Bore Diameter

22.99 - 23.01 mm

(0.9501 - 0.9059 in.)

Distributor Drive Bushing
to

Bore Interference (Press
Fit)

0.0127 - 0.3556 mm

(0.0005 - 0.0140 in.)

Distributor Shaft to
Bushing

Clearance

0.0178 - 0.0686 mm

(0.0007 - 0.0027 in.)

CYLINDER HEAD and VALVES

Valve Seat Angle

44.25° - 44.75°

Valve Seat Runout

(Max)

0.0762 mm

(0.003 in.)

AN

ENGINE 3.9L

9 - 77

ENGINE 3.9L (Continued)

DESCRIPTION

SPECIFICATION

Valve Seat Width (Finish)

Intake

1.016 - 1.542 mm

(0.040 - 0.060 in.)

Exhaust

1.524 - 2.032 mm

(0.040 - 0.060 in.)

Valve Face Angle

43.25° - 43.75°

Valve Head Diameter

Intake

48.666 mm

(1.916 in.)

Exhaust

41.250 mm

(1.624 in.)

Valve Length (Overall)

Intake

124.28 - 125.92 mm

(4.893 - 4.918 in.)

Exhaust

124.64 - 125.27 mm

(4.907 - 4.932 in.)

Valve Lift (@ Zero Lash)

10.973 mm

(0.432 in.)

Valve Stem Diameter

7.899 - 7.925 mm

(0.311 - 0.312 in.)

Valve Guide Bore
Diameter

7.950 - 7.976 mm

(0.313 - 0.314 in.)

Valve Stem to Guide
Clearance

0.0254 - 0.0762 mm

(0.001 - 0.003 in.)

Valve Stem to Guide
Clearance

Service Limit (Rocking
Method)

0.4318 mm

(0.017 in.)

VALVE SPRINGS

Free Length

49.962 mm

(1.967 in.)

Spring Tension

Valve Closed

378 N @ 41.66 mm

(85 lbs. @ 1.64 in.)

Valve Open

890 N @ 30.89 mm

(200 lbs. @ 1.212 in.)

DESCRIPTION

SPECIFICATION

Number of Coils

6.8

Installed Height

41.66 mm

(1.64 in.)

Wire Diameter

4.50 mm

(0.177 in.)

HYDRAULIC TAPPETS

Body Diameter

22.949 - 22.962 mm

(0.9035 - 0.9040 in.)

Clearance in Block

0.0279 - 0.0610 mm

(0.0011 - 0.210 in.)

Dry Lash

1.524 - 5.334 mm

(0.060 - 0.210 in.)

Push Rod Length

175.64 - 176.15 mm

(6.915 - 6.935 in.)

OIL PRESSURE

@ Curb Idle (Min.)*

41.4 kPa

(6 psi)

@ 3000 rpm

207 - 552 kPa

(30 - 80 psi)

Bypass Valve Setting

62 - 103 kPa

(9 - 15 psi)

Switch Actuating
Pressure

34.5 - 48.3 kPa

(5 - 7 psi)

* If oil pressure is zero at curb idle, DO NOT RUN
ENGINE.

OIL PUMP

Clearance Over Rotors

(Max)

0.1016 mm

(0.004 in.)

Cover Out of Flat

(Max)

0.0381 mm

(0.0015 in.)

Inner Rotor Thickness

(Min)

20.955 mm

(0.825 in.)

9 - 78

ENGINE 3.9L

AN

ENGINE 3.9L (Continued)

DESCRIPTION

SPECIFICATION

Outer Rotor Clearance

(Max)

0.3556 mm

(0.014 in.)

Outer Rotor Diameter

(Min)

62.7126 mm

(2.469 in.)

Outer Rotor Thickness

(Min)

20.955 mm

(0.825 in.)

Tip Clearance Between
Rotors

(Max)

0.2032 mm

(0.008 in.)

PISTONS

Clearance at Top of Skirt

0.0127 - 0.0381 mm

(0.0005 - 0.0015 in.)

Land Clearance
(Diameter)

0.635 - 1.016 mm

(0.025 - 0.040 in.)

Piston Length

86.360 mm

(3.40 in.)

Ring Groove Depth

#1 & 2

4.572 - 4.826 mm

(0.180 - 0.190 in.)

#3

3.810 - 4.064 mm

(0.150 - 0.160 in.)

Weight

592.6 - 596.6 grams

(20.90 - 21.04 oz.)

PISTON PINS

Clearance in Piston

0.0064 - 0.0191 mm

(0.00025 - 0.00075 in.)

Clearance in Rod
(Interference)

0.0178 - 0.0356 mm

(0.0007 - 0.0014 in.)

DESCRIPTION

SPECIFICATION

Diameter

24.996 - 25.001 mm

(0.9841 - 0.9843 in.)

End Play

None

Length

75.946 - 76.454 mm

(2.990 - 3.010 in.)

PISTON RINGS

Ring Gap

Compression Rings

0.254 - 0.508 mm

(0.010 - 0.020 in.)

Oil Control (Steel Rails)

0.254 - 1.270 mm

(0.010 - 0.050 in.)

Ring Side Clearance

Compression Rings

0.038 - 0.076 mm

(0.0015 - 0.0030 in.)

Oil Control (Steel Rails)

0.06 - 0.21 mm

(0.002 - 0.008 in.)

Ring Width

Compression Rings

1.971 - 1.989 mm

(0.0776 - 0.0783 in.)

Oil Control (Steel Rails)

3.848 - 3.975 mm

(0.1515 - 0.1565 in.)

VALVE TIMING

Exhaust Valve

Closes

16° (ATDC)

Opens

52° (BBDC)

Duration

248°

Intake Valve

Closes

50° (ABDC)

Opens

10° (BTDC)

Duration

240°

Valve Overlap

26°

AN

ENGINE 3.9L

9 - 79

ENGINE 3.9L (Continued)

 

 

 

 

 

 

 

Content   ..  470  471  472  473   ..