Dodge Nitro. Manual — part 147

1. Align the crankshaft sprocket (10) with the TDC mark (9) on oil pump cover. See Fig. 314.

2. Align the camshaft sprockets (2, 7) timing reference marks (1, 8) with the marks on the rear cover.

3. Install the timing belt starting at the crankshaft sprocket (10) going in a counterclockwise direction.

Install the belt around the last sprocket. Maintain tension on the belt as it is positioned around the
tensioner pulley (11).

4. Holding the tensioner pulley (11) against the belt, install the tensioner into the housing and tighten to 28

N.m (250 in. lbs.). Each camshaft sprocket mark should remain aligned the cover marks.

5. When tensioner is in place pull retaining pin to allow the tensioner to extend to the pulley bracket.

6. Rotate crankshaft sprocket 2 revolutions and check the timing marks on the camshafts and crankshaft.

The marks should line up within their respective locations. If marks do not line up, repeat procedure.

7. Install the front timing belt cover. See INSTALLATION.

8. Tighten the rocker arm assemblies and install the cylinder head covers. See INSTALLATION.

9. Connect negative battery cable.

TENSIONER - TIMING BELT & PULLEY

REMOVAL

TIMING BELT TENSIONER PULLEY ASSEMBLY

1 - RIGHT CAMSHAFT GEAR ALIGNMENT
MARK

7 - LEFT CAMSHAFT GEAR

2 - RIGHT CAMSHAFT GEAR

8 - LEFT CAMSHAFT GEAR ALIGNMENT
MARK

3 - CYLINDER HEAD TO INNER TIMING BELT
COVER BOLTS - RIGHT

9 - CRANKSHAFT GEAR ALIGNMENT MARK

4 - TIMING BELT

10 - CRANKSHAFT GEAR

5 - WATER PUMP PULLEY

11 - TIMING BELT TENSIONER PULLEY

6 - CYLINDER HEAD TO INNER TIMING BELT
COVER BOLTS - LEFT

12 - TIMING BELT TENSIONER

NOTE:

If the camshaft gears have been removed it is only necessary to have the
camshaft gear retaining bolts installed to a snug torque at this time.

NOTE:

If camshaft gears have been removed and timing is correct, counterhold
and tighten the camshaft gears to final torque specification. See
INSTALLATION.

2007 Dodge Nitro R/T

2007 ENGINE 4.0L - Service Information - Nitro

Fig. 315: Removing/Installing Tensioner Pulley, Pivot Bolt & Tensioner Bracket
Courtesy of CHRYSLER LLC

1. Remove the timing belt. See TIMING BELT.

2. Remove the timing belt tensioner pulley (1) and bracket (3) assembly by unscrewing the pivot bolt (2)

from the oil pump housing. See Fig. 315.

TIMING BELT TENSIONER

1. For timing belt tensioner removal procedure. See TIMING BELT.

INSPECTION

1 - TENSIONER PULLEY
2 - PIVOT BOLT
3 - TENSIONER BRACKET

2007 Dodge Nitro R/T

2007 ENGINE 4.0L - Service Information - Nitro

TIMING BELT TENSIONER PULLEY ASSEMBLY

Fig. 316: Removing/Installing Tensioner Pulley, Pivot Bolt & Tensioner Bracket
Courtesy of CHRYSLER LLC

1. Inspect pulley (1) for free movement. Replace if pulley is loose, seized, or rough turning. See Fig. 316.

2. Inspect pulley bearing and seal. Replace if damaged.

3. Inspect pivot bolt (2) for free movement in assembly housing. Replace assembly if seized or excessive

looseness.

1 - TENSIONER PULLEY
2 - PIVOT BOLT
3 - TENSIONER BRACKET

NOTE:

The tensioner pulley (1), bracket (3), and pivot bolt (2) is serviced as an
assembly.

2007 Dodge Nitro R/T

2007 ENGINE 4.0L - Service Information - Nitro

TIMING BELT TENSIONER

Fig. 317: Timing Housing & Plunger (Extended Position)

2007 Dodge Nitro R/T

2007 ENGINE 4.0L - Service Information - Nitro