Dodge Nitro. Manual — part 6
Courtesy of CHRYSLER LLC
24. Connect the engine wiring harness at the following points:
Intake air temperature (IAT) sensor
Fuel Injectors
Electronic Throttle Control (ETC)
Idle Air Control (IAC) Motor
Engine Oil Pressure Switch
Engine Coolant Temperature (ECT) Sensor
Manifold Absolute Pressure MAP) Sensor
Camshaft Position (CMP) Sensor
Coil Over Plugs
Crankshaft Position Sensor (2)
1 -
CRANKSHAFT
POSITION
SENSOR
2 - CYLINDER
HEAD COVER
3 -
CAMSHAFT
POSITION
SENSOR
4 - RIGHT
SIDE
CYLINDER
BLOCK
2007 Dodge Nitro R/T
2007 ENGINE 3.7L - Service Information - Nitro
Fig. 16: Removing/Installing Generator - 3.7L
Courtesy of CHRYSLER LLC
25. Connect lower radiator hose.
26. Connect upper radiator hose.
27. Connect throttle and speed control cables.
28. Install the heater hose assembly.
29. Install coolant recovery bottle.
30. Install the power steering pump.
31. Install the generator (3). Refer to INSTALLATION .
1 - LOWER BOLTS
2 - REAR BOLT
3 - GENERATOR
2007 Dodge Nitro R/T
2007 ENGINE 3.7L - Service Information - Nitro
Fig. 17: Removing/Installing A/C Compressor
Courtesy of CHRYSLER LLC
32. Install the A/C compressor (2).
33. Install the drive belt. Refer to INSTALLATION .
34. Install the fan shroud with the electric fan assembly. Refer to INSTALLATION .
35. Install the radiator core support bracket.
36. Install the air cleaner assembly.
37. Refill the engine cooling system.
38. Install the hood.
39. Check and fill engine oil.
40. Connect the battery negative cable.
41. Start the engine and check for leaks.
SPECIFICATIONS
3.7L ENGINE
GENERAL SPECIFICATIONS
DESCRIPTION
SPECIFICATION
Type
90° SOHC V6 12 Valve
Number of Cylinders
6
Firing Order
1-6-5-4-3-2
Lead Cylinder
No. 1 Left Bank
Compression Ratio
9.6:1
Max. Variation Between Cylinders
25%
Metric
Standard
Displacement
3.7 Liters
226 Cubic Inches
2007 Dodge Nitro R/T
2007 ENGINE 3.7L - Service Information - Nitro
CYLINDER BLOCK
PISTONS
PISTON PINS
PISTON RINGS
Bore
93.0 mm
3.66 in.
Stroke
90.8 mm
3.40 in.
Horsepower
211 @ 5200 RPM
Torque
236 ft.lbs.@ 4000 RPM
Compression Pressure
1172-1551 kPa
170-225 psi
DESCRIPTION
SPECIFICATION
Metric
Standard
Bore Diameter
93.013 ± 0.0075 mm
3.6619 ± 0.0003 in.
Out of Round (MAX)
0.076 mm
0.003 in.
Taper (MAX)
0.051 mm
0.002 in.
DESCRIPTION
SPECIFICATION
Metric
Standard
Diameter
92.975 mm
3.6605 in.
Weight
365.0 grams
12.87 oz
Ring Groove Diameter
No. 1
85.37 - 83.13 mm
3.282 - 3.273 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.
DESCRIPTION
SPECIFICATION
Metric
Standard
Clearance In Piston
0.006 - 0.015 mm
0.0002 - 0.0005 in.
Diameter
24.017 - 24.020 mm
0.9455 - 0.9456 in.
DESCRIPTION
SPECIFICATION
Metric
Standard
Ring Gap
Top Compression Ring
0.20 - 0.36 mm
0.0079 - 0.0142 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
0.051 - 0.094 mm
0.0020 - 0.0037 in.
Second Compression Ring
0.040 - 0.080 mm
0.0016 - 0.0031 in.
Oil Ring (Steel Ring)
0.019 - 0.229 mm
0.0007 - 0.0091 in.
Ring Width
Top Compression Ring
1.472 - 1.490 mm
0.057 - 0.058 in.
2007 Dodge Nitro R/T
2007 ENGINE 3.7L - Service Information - Nitro
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