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1st Gen Durango 1998 - 2003 Durango's

torque specs

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  #1  
Old 03-15-2010, 10:55 PM
11067 11067 is offline
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Default torque specs

i need some help with the specs on torque settings from the cylinder heads up. ( replacing head gaskets, valve cover gaskets, intake gaskets, etc. ) if anyone could help me out with that, it would be greatly appreciated,


2002 Durango- 4.7 litre.

thanks
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  #2  
Old 03-16-2010, 10:22 PM
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hydrashocker hydrashocker is offline
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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)
DESCRIPTION SPECIFICATION
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
(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.)
9 - 14 ENGINE 4.7L DN

DESCRIPTION SPECIFICATION
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.)
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.)
DESCRIPTION SPECIFICATION
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.)
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.)
DN ENGINE 4.7L 9 - 15
ENGINE 4.7L (Continued)
DESCRIPTION SPECIFICATION
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.)
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.)
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 Nm 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 —
9 - 16 ENGINE 4.7L DN


DESCRIPTION Nm Ft. In.
Lbs. Lbs.
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
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 —
__________________

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Last edited by hydrashocker; 03-16-2010 at 10:24 PM..
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  #3  
Old 10-13-2011, 02:10 PM
kuzzy kuzzy is offline
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Great post!! helped me out a bunch!!
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  #4  
Old 10-14-2011, 11:03 AM
Bobman Bobman is offline
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Quote:
Originally Posted by 11067 View Post
i need some help with the specs on torque settings from the cylinder heads up. ( replacing head gaskets, valve cover gaskets, intake gaskets, etc. ) if anyone could help me out with that, it would be greatly appreciated,


2002 Durango- 4.7 litre.

thanks
Remember that the 4.7 head bolts are TTY (Torque-To-Yield) so they go to their torque spec and then get turned another 90 degrees.

Bob
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Old 10-14-2011, 11:03 AM
 
 
 
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