Dodge Nitro. Manual - part 76

 

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Dodge Nitro. Manual - part 76

 

 

PISTON RING SIDE CLEARANCE 

PISTON RING WIDTH 

CONNECTING RODS 

CRANKSHAFT MAIN BEARING JOURNALS 

CONNECTING ROD JOURNALS 

Ring Gap-Oil Control (Steel Rails)

0.25-0.76 mm

0.010-0.030 in.

DESCRIPTION 

SPECIFICATIONS 

Metric 

Standard 

Top and Second Compression 

Ring

0.04-0.08 mm

0.0016-0.0031 in.

Oil Ring (Steel Rails

0.038-0.184 mm

0.0015-0.0073 in.

DESCRIPTION 

SPECIFICATIONS 

Metric 

Standard 

Top Compression Ring

1.17-1.20 mm

0.0461-0.0472 in.

2nd Compression Ring (Micro-

Napier

1.47-1.49 mm

0.058-0.059 in.

Oil Control (Steel Rails)

0.435-0.490 mm

0.0171-0.0193 in.

DESCRIPTION 

SPECIFICATIONS 

Metric 

Standard 

Bearing Clearance

0.035-0.073 mm

0.0013-0.0028 in.

Piston Pin Bore Diameter

22.005-22.012 mm

0.8663-0.8666 in.

Side Clearance (MAX)

0.39 mm

0.0153 in.

Total Weight (Less Bearing)

693 grams

24.445 oz.

DESCRIPTION 

SPECIFICATIONS 

Metric 

Standard 

Diameter

68.987-69.013 mm

2.519-2.520 in.

Main Bearing Diametrical Clearance

0.032-0.062 mm

0.0013-0.0024 in.

Bearing Clearance (Wear Limit)

0.072 mm

0.0028 in.

Out-of-Round (MAX)

0.008 mm

0.0003 in.

Diametrical Taper (MAX)

0.010 mm

0.0004 in.

End Play

0.048-0.260 mm

0.002-0.010 in.

End Play (MAX)

0.37 mm

0.015 in.

DESCRIPTION 

SPECIFICATIONS 

Metric 

Standard 

Diameter

57.982-58.002 mm

2.282-2.283 in.

Bearing Diametrical Clearance

0.035-0.073 mm

0.0014-0.0029 in.

 

2007 Dodge Nitro R/T 

2007 ENGINE 4.0L - Service Information - Nitro

  

CAMSHAFT 

VALVE TIMING-INTAKE VALVE 

VALVE TIMING-EXHAUST VALVE 

CYLINDER HEAD 

Bearing Clearance (Wear Limit)

0.080 mm

0.003 in.

Out-of-Round (MAX)

0.008 mm

0.0003 in.

Diametrical Taper (MAX)

0.010 mm

0.0004 in.

DESCRIPTION 

SPECIFICATIONS 

Metric 

Standard 

Bore Diameter

43.038-43.059 mm

1.6944-1.6953 in.

Diametrical Clearance

0.078-0.12 mm

0.003-0.0047 in.

Diametrical Clearance (MAX)

0.15 mm

0.0059 in.

Bearing Journal Diameter

42.939-42.960 mm

1.6905-1.6913 in.

End Play

0.05-0.51 mm

0.002-0.020 in.

DESCRIPTION 

SPECIFICATIONS (CRANKSHAFT 

DEGREES) 

Opens

4° BTDC (A) - 1° ATDC (B)

Closes (ABDC)

60° (A) - 65° (B)

Duration

244°

Centerline

118° (A) - 123° (B)

DESCRIPTION 

SPECIFICATIONS (CRANKSHAFT 

DEGREES) 

Opens (BBDC)

61°

Closes (ATDC)

21°

Duration

262°

Centerline

110°

DESCRIPTION 

SPECIFICATIONS 

Metric 

Standard 

Gasket Thickness (Compressed)

1.50 mm

0.059 in.

Valve Seat Angle (From 

Horizontal)

45-45.5°

Valve Seat Runout (MAX)

0.051 mm

0.002 in.

Valve Seat Width-Intake

0.8-1.2 mm

0.031-0.067 in.

Valve Seat Width-Exhaust

1.3-1.7 mm

0.05-0.067 in.

Guide Bore Diameter (Std.)

6.975-7.00 mm

0.2746-0.2756 in.

Valve Guide Height *

9.5-10.5 mm

0.3740-0.4134 in.

* Measured from cylinder head surface

 

2007 Dodge Nitro R/T 

2007 ENGINE 4.0L - Service Information - Nitro

  

VALVES 

VALVE SPRINGS 

DESCRIPTION 

SPECIFICATIONS 

Metric 

Standard 

Face Angle (From Horizontal)

44.5°-45°

Head Diameter-Intake

36.37-36.63 mm

1.4319-14421 in.

Head Diameter-Exhaust

28.87-29.13 mm

1.1366-1.1469 in.

Length-Intake (Overall)

114.41-114.99 mm

4.5043-4.5272 in.

Length-Exhaust (Overall)

126.17-126.75 mm

4.9673-4.9902 in.

Stem Diameter-Intake

6.935-6.953 mm

0.2730-0.2737 in.

Stem Diameter-Exhaust

6.906-6.924 mm

0.2719-0.2726 in.

Stem-to-Guide Clearance-Intake

0.022-0.065 mm

0.0009-0.0026 in.

Stem-to-Guide Clearance-Intake 

(MAX.) Rocking Method

0.29 mm

0.0114 in.

Stem-to-Guide Clearance-Exhaust

0.051-0.094 mm

0.002-0.0037 in.

Stem-to-Guide Clearance-Intake 

(MAX.) Rocking Method

0.370 mm

0.0146 in.

Valve Lift-Intake (Zero Lash)

9.00 mm

0.3543 in.

Valve Lift-Exhaust (Zero Lash)

7.00 mm

0.2756 in.

Valve Margin-Intake

0.835-1.165 mm

0.0329-0.0459 in.

Valve Margin-Exhaust

1.44-1.77 mm

0.0567-0.0697 in.

Valve Stem Tip Height-Intake

42.366-43.655 mm

1.6680-1.7187 in.

Valve Stem Tip Height-Exhaust

45.205-46.486 mm

1.780-1.8305 in.

DESCRIPTION 

SPECIFICATIONS 

Metric 

Standard 

Free Length-Intake (Approx.)

43.6 mm

1.7165 in.

Free Length-Exhaust- (Approx.)

47.9 mm

1.8858 in.

Spring Force-Intake (Valve 

Closed)

309-358 N @ 38.0 mm

69.5-80.5 lbs. @ 1.4961 in.

Spring Force-Exhaust (Valve 

Closed)

355.4-400.8 N @ 38.0 mm

79.9-90.1 lbs. @ 1.496 in.

Spring Force-Exhaust (Valve 

Open)

646.5-714.5 N @ 31.0 mm

145.3-160.7 lbs. @ 1.2205 in.

Spring Force-Intake (Valve Open)

871.1-943.7 N @ 29.0 mm

195.8-212.2 lbs. @ 1.1417 in.

Number of Coils-Intake

6.5

Number of Coils-Exhaust

7.5

Color of Spring (Top of Coils)-

Intake-Right Hand Coil Direction

GREY

Color of Spring (Top of Coils)-

Exhaust-Left Hand Coil Direction

BLUE

Wire Diameter-Intake

4.29-4.35 mm

0.1547-0.1570 in.

 

2007 Dodge Nitro R/T 

2007 ENGINE 4.0L - Service Information - Nitro

  

OIL PUMP 

OIL PRESSURE 

SPECIAL TOOLS 

4.0L ENGINE 

Wire Diameter-Exhaust

3.93-3.99 mm

0.1547-0.1570 in.

Spring Installed Height *

38.0 mm

1.4961 in.

* Spring Seat to Bottom Retainer-Intake and Exhaust

DESCRIPTION 

SPECIFICATIONS 

Metric 

Standard 

Clearance Over Rotors

0.077 mm

0.003 in.

Cover-Out-of-Flat (MAX.)

0.025 mm

0.001 in.

Inner and Outer Rotor Thickness 

(MIN.)

14.300 mm

0.563 in.

Inner and Outer Rotor Thickness 

(MAX.)

14.325 mm

0.564 in.

Clearance between Outer Rotor 

and Body

0.39 mm

0.015 in.

Outer Rotor Diameter (MIN.)

79.997 mm

3.149 in.

Outer Rotor Diameter (MAX.)

80.074 mm

3.153 in.

Tip Clearance Between Rotors 

(MAX.)

0.20 mm

0.008 in.

DESCRIPTION 

SPECIFICATIONS 

NOTE: At Normal Operating Temperatures

Pressure @ Curb Idle Speed *

34.47 kPa Min. (5 PSI MIN.)

Pressure @ 3000 RPM

300-724 kPa (45-105 PSI.)

*CAUTION: If pressure is zero at curb idle, DO NOT run engine at 3000 RPM.

 

2007 Dodge Nitro R/T 

2007 ENGINE 4.0L - Service Information - Nitro

  

 

 

 

 

 

 

 

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