Dodge Nitro. Manual — part 141

MANIFOLD-EXHAUST RIGHT

Fig. 293: Right Exhaust Manifold
Courtesy of CHRYSLER LLC

1. Clean gasket surfaces.

1 - GASKET
2 - MANIFOLD
3 - LOWER SHIELD
4 - UPPER SHIELD
5 - BOLT

NOTE:

If replacing the exhaust manifold, tighten the exhaust outlet studs to
39N.m (350 in.lbs.).

2007 Dodge Nitro R/T

2007 ENGINE 4.0L - Service Information - Nitro

2. Position the exhaust manifold and gasket. Install the retaining bolts. Tighten 4 bolts starting at the center

working outward to 23 N.m (200 in. lbs.). See Fig. 293.

3. Install the heat shields. Tighten the heat shield fasteners to 12 N.m (105 in.lbs.).

4. Tighten the 2 out most nuts to 8 N.m (73 in.lbs.).

5. Connect the oxygen sensor.

6. Raise and support the vehicle.

Fig. 294: Removing/Installing Exhaust Pipe
Courtesy of CHRYSLER LLC

7. Connect the front exhaust pipe to exhaust manifold (2). Tighten the fasteners to 34 N.m (300 in. lbs.).

8. Connect the negative battery cable.

VALVE TIMING

DESCRIPTION

TIMING DRIVE SYSTEM

2007 Dodge Nitro R/T

2007 ENGINE 4.0L - Service Information - Nitro

Fig. 295: Timing Drive System
Courtesy of CHRYSLER LLC

The timing drive system has been designed to provide quiet performance and reliability to support a NON free-
wheeling engine.

The timing drive components include a crankshaft sprocket (4), camshaft sprockets, tensioner pulley, hydraulic
tensioner and a timing belt (3). The water pump (2) is driven by the back side of the timing belt (3). The right
and left camshaft sprockets are keyed and not interchangeable because of the cam sensor pick-up wheel on the
left sprocket. See Fig. 295.

1 - FRONT TIMING COVER
2 - WATER PUMP
3 - TIMING BELT
4 - CRANKSHAFT SPROCKET
5 - CRANKSHAFT DAMPER

2007 Dodge Nitro R/T

2007 ENGINE 4.0L - Service Information - Nitro

COVER-FRONT TIMING BELT

REMOVAL

COVER-FRONT TIMING BELT

Fig. 296: Front Timing Covers
Courtesy of CHRYSLER LLC

1 - UPPER FRONT TIMING COVER
2 - LOWER FRONT TIMING COVER
3 - VIBRATION DAMPER

2007 Dodge Nitro R/T

2007 ENGINE 4.0L - Service Information - Nitro