Dodge Dakota (R1). Manual — part 487
SPECIFICATIONS
4.7L ENGINE
DESCRIPTION
SPECIFICATION
GENERAL SPECIFICATIONS
Engine Type
90° SOHC V-8 16-Valve
Displacement
4.7 Liters / 4701cc
(287 Cubic Inches)
Bore
93.0 mm (3.66 in.)
Stroke
86.5 mm (3.40 in.)
Compression Ratio
9.0:1
Horsepower
235 BHP @ 4800 RPM
Torque
295 LB-FT @ 3200 RPM
Lead Cylinder
#1 Left Bank
Firing Order
1-8-4-3-6-5-7-2
CYLINDER BLOCK
Cylinder Block
Cast Iron
Bore Diameter
93.010 ± .0075 mm
(3.6619 ± 0.0003 in.)
Out of Round (MAX)
0.076 mm (0.003 in.)
Taper (MAX)
0.051 mm (0.002 in.)
PISTONS
Material
Aluminum Alloy
Diameter
92.975 mm (3.6605 in.)
Weight
367.5 grams (12.96 oz)
Ring Groove Diameter
No. 1
83.73 - 83.97 mm
(3.296 - 3.269 in.)
No. 2
82.833 - 83.033 mm
(3.261 - 3.310 in.)
No. 3
83.88 - 84.08 mm
(3.302 - 3.310 in.)
PISTON PINS
Type
Pressed Fit
Clearance In Piston
0.010 - 0.019 mm
(0.0004 - 0.0008 in.)
Diameter
24.013 - 24.016 mm
(0.9454 - 0.9456 in.)
PISTON RINGS
Ring Gap
Top Compression Ring
0.37 - 0.63 mm
DESCRIPTION
SPECIFICATION
(0.0146 - 0.0249 in.)
Second Compression
Ring
0.37 - 0.63 mm
(0.0146 - 0.0249 in.)
Oil Control (Steel Rails)
0.25 - 0.76 mm
(0.0099 - 0.30 in.)
Side Clearance
Top Compression Ring
.051 - .094 mm
(0.0020 - 0.0037 in.)
Second Compression
Ring
0.040 - 0.080 mm
(0.0016 - 0.0031 in.)
Oil Ring (Steel Ring)
.019 - .229 mm
(.0007 - .0091 in.)
Ring Width
Top Compression Ring
1.472 - 1.490 mm
(0.057 - 0.058 in.)
Second Compression
Ring
1.472 - 1.490 mm
(0.057 - 0.058 in.)
Oil Ring (Steel Rails)
0.445 - 0.470 mm
(0.017 - 0.018 in.)
CONNECTING RODS
Bearing Clearance
0.010 - 0.048 mm
(0.0004 - 0.0019 in.)
Side Clearance
0.10 - 0.35 mm
(0.004 - 0.0138 in.)
Piston Pin Bore Diameter
.022 - .045 mm
(Interference Fit)
(0.0009 - 0.0018 in.)
Bearing Bore Out of
Round
0.004 mm
(MAX)
(0.0002 in.)
Total Weight (Less
Bearing)
555 grams (19.5771
ounces)
CRANKSHAFT
Main BearingJournal
Diameter
63.488 - 63.512 mm
(2.4996 - 2.5005 in.)
Bearing Clearance
0.018 - 0.052 mm
(0.0008 - 0.0021 in.)
Out of Round (MAX)
0.005 mm (0.0002 in.)
9 - 136
ENGINE 4.7L
AN
ENGINE 4.7L (Continued)
DESCRIPTION
SPECIFICATION
Taper (MAX)
0.008 mm (0.0004 in.)
End Play
0.052 - 0.282 mm
(0.0021 - 0.0112 in.)
End Play (MAX)
0.282 mm (0.0112 in)
Connecting Rod
Journal
Diameter
50.992 - 51.008 mm
(2.0076 - 2.0082 in.)
Bearing Clearance
0.015 - 0.055 mm
(0.0006 -0.0022 in.)
Out of Round (MAX)
0.005 mm (0.0002 in.)
Taper (MAX)
0.008 mm (0.0004 in.)
CAMSHAFT
Bore Diameter
26.02 - 26.04 mm
(1.0245 - 1.0252 in.)
Bearing Journal Diameter
25.975 - 25.995 mm
(1.0227 - 1.0235 in.)
Bearing Clearance
0.025 - 0.065 mm
(0.001 - 0.0026 in.)
Bearing Clearance (MAX)
0.065 mm (0.0026 in.)
End Play
.075 - .200 mm
(0.003 - 0.0079 in.)
End Play (MAX)
.200 mm (0.0079 in.)
VALVE TIMING
Intake
Opens (ATDC)
3.6°
Closes (ATDC)
247.1°
Duration
243.5°
Exhaust
Opens (BTDC)
232.5°
Closes (ATDC)
21.2°
Duration
253.70°
Valve Overlap
17.6°
VALVES
Face Angle
45° - 45.5°
Head Diameter
Intake
48.52 - 48.78 mm
(1.9103 - 1.9205 in.)
Exhaust
36.87 - 37.13 mm
1.4516 - 1.4618 in.)
DESCRIPTION
SPECIFICATION
Length (Overall)
Intake
113.45 - 114.21 mm
(4.4666 - 4.4965)
Exhaust
114.92 - 115.68 mm
(4.5244 - 4.5543 in.)
Stem Diameter
Intake
6.931 - 6.957 mm
(0.2729 - 0.2739 in.)
Exhaust
6.902 - 6.928 mm
(0.2717 - 0.2728 in.)
Stem - to - Guide
Clearance
Intake
.018 - .069 mm
(0.0008 - 0.0028 in.)
Exhaust
.047 - .098 mm
(0.0019 - 0.0039 in.)
Max. Allowable Stem -
to -
Guide Clearance
(Rocking
Method)
Intake
0.069 mm (0.0028 in.)
Exhaust
0.098 mm (0.0039 in.)
Valve Lift (Zero Lash)
Intake
11.25 mm (0.443 in.)
Exhaust
10.90 mm (0.4292 in.)
VALVE SPRING
Free Length (Approx)
Intake and Exhaust
48.6 mm (1.9134 in.)
Spring Force (Valve
Closed)
Intake and Exhaust
315.5 - 352.5 N @ 40.89
mm
(70.92722 - 79.24515 lbs.
@ 1.6099 in.)
Spring Force (Valve
Open)
Intake and Exhaust
786.0 - 860.0 N @ 29.64
mm
176.6998 - 193.3357 lbs.
@ 1.167 in.)
AN
ENGINE 4.7L
9 - 137
ENGINE 4.7L (Continued)
DESCRIPTION
SPECIFICATION
Number of Coils
Intake and Exhaust
6.69
Wire Diameter
Intake and Exhaust
4.2799 - 4.3561 mm
(0.1685 - 0.1715 in.)
Installed Height (Spring
Seat to Bottom of
Retainer)
Nominal
Intake
40.97 mm (1.613 in.)
Exhaust
40.81 mm (1.606 in.)
CYLINDER HEAD
Gasket Thickness
(Compressed)
.7 mm (0.0276 in.)
Valve Seat Angle
44.5° - 45.0°
Valve Seat Runout (MAX)
0.051 mm (0.002 in.)
Valve Seat Width
Intake
1.75 - 2.36 mm
(0.0698 - 0.0928 in.)
Exhaust
1.71 - 2.32 mm
(0.0673 - 0.0911 in.)
Guide Bore Diameter
(Std.)
6.975 - 7.00 mm
(0.2747 - 0.2756 in.)
Cylinder Head Warpage
(Flatness)
0.0508 mm (0.002 in.)
OIL PUMP
Clearance Over Rotors /
End Face (MAX)
.035 - .095 mm
(0.0014 - 0.0038 in.)
Cover Out - of -Flat
(MAX)
.025 mm (0.001 in.)
Inner and Outer Rotor
Thickness
12.02 mm (0.4731 in.)
Outer Rotor Clearance
(MAX)
.235 mm (.0093 in.)
Outer Rotor Diameter
(MIN)
85.925 mm (0.400 in.)
Tip Clearance Between
Rotors
(MAX)
.150 mm (0.006 in.)
DESCRIPTION
SPECIFICATION
OIL PRESSURE
At Curb Idle Speed
(MIN)*
25 kPa (4 psi)
@ 3000 rpm
170 - 758 kPa (25 - 110
psi)
* CAUTION: If pressure is zero at curb idle, DO
NOT run
engine at 3000 rpm.
TORQUE
DESCRIPTION
N·m
Ft.
In.
Lbs.
Lbs.
Camshaft
Non - Oiled Sprocket Bolt
122
90
—
Bearing Cap Bolts
11
—
100
Timing Chain Cover—Bolts
54
40
—
Connecting Rod Cap—Bolts
27
20
—
PLUS 90° TURN
Bed Plate—Bolts
Refer to Procedure
Crankshaft Damper—Bolt
175
130
—
Cylinder Head—Bolts
M11 Bolts
81
60
—
M8 Bolts
26
19
—
Cylinder Head Cover—Bolts
12
—
105
Exhaust Manifold—Bolts
25
18
—
Exhaust Manifold Heat
Shield—Nuts
8
—
72
Then loosen 45°
Flexplate—Bolts
60
45
—
Engine Mount Bracket to
Block—Bolts
61
45
—
Rear Mount to
Transmission—Bolts
46
34
—
Generator Mounting—Bolts
M10 Bolts
54
40
—
M8 Bolts
28
—
250
Intake Manifold—Bolts
12
—
105
Refer to Procedure
for
Tightening Sequence
Oil Pan—Bolts
15
—
130
9 - 138
ENGINE 4.7L
AN
ENGINE 4.7L (Continued)
DESCRIPTION
N·m
Ft.
In.
Lbs.
Lbs.
Oil Pan—Drain Plug
34
25
—
Oil Pump—Bolts
28
—
250
Oil Pump Cover—Bolts
12
—
105
Oil Pickup Tube—Bolt and
Nut
28
—
250
Oil Dipstick Tube to Engine
Block—Bolt
15
—
130
Oil Fill Tube—Bolts
12
—
105
Timing Chain Guide—Bolts
28
—
250
Timing Chain Tensioner
Arm—Special
Pin Bolt
17
—
150
Hydraulic Tensioner—Bolts
28
—
250
Timing Chain Primary
Tensioner—Bolts
28
—
250
Timing Drive Idler Sprocket—
Bolt
34
25
—
Thermostat Housing—Bolts
13
—
115
Water Pump—Bolts
54
40
—
SPECIAL TOOLS
4.7L ENGINE
Spanner Wrench 6958
Adapter Pins 8346
Engine Lifting Studs 8400
Engine Lift Fixture 8347
Front Crankshaft Seal Remover 8511
Front Crankshaft Seal Installer 8348
AN
ENGINE 4.7L
9 - 139
ENGINE 4.7L (Continued)
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