Dodge Nitro. Manual — part 145

Fig. 307: Left Camshaft Sprocket
Courtesy of CHRYSLER LLC

9. Hold left camshaft sprocket with a 36 mm (1 7/16 in.) box end wrench.

10. Loosen and remove the camshaft gear retaining bolt and washer. The left bolt is 255 mm (10.0 in.) long.

11. Remove the camshaft sprocket. See Fig. 307

1 - LEFT CAMSHAFT TDC
2 - LOOSENED ROCKER ASSEMBLY

NOTE:

The camshaft timing gears are keyed to the camshaft.

2007 Dodge Nitro R/T

2007 ENGINE 4.0L - Service Information - Nitro

Fig. 308: Removing/Installing Camshaft Sprocket
Courtesy of CHRYSLER LLC

12. Hold right camshaft sprocket with a 36 mm (1 7/16 in.) box end wrench.

1 - LOOSENED ROCKER ASSEMBLY
2 - RIGHT CAMSHAFT TDC

CAUTION: The right camshaft must be pushed rearward approximately 3 1/2

inches to remove the camshaft gear retaining bolt and gear. Care
must be taken not to scratch or nick the camshaft or cylinder head
journals when moving camshaft.

2007 Dodge Nitro R/T

2007 ENGINE 4.0L - Service Information - Nitro

13. Loosen and remove the camshaft gear retaining bolt and washer. The right bolt is 213 mm (8 3/8 in.)

long.

14. Remove the camshaft sprocket. See Fig. 308.

INSPECTION

TIMING BELT AND SPROCKETS

Fig. 309: Identifying Timing Gear Components
Courtesy of CHRYSLER LLC

Remove the outer timing covers. Rotate the crankshaft until the pointer on the crankshaft sprocket (10) aligns
the TDC mark on the oil pump (9). Check to determine if the camshaft sprocket (2, 7) timing marks (1, 8) are
aligned with the marks on the inner timing cover. It may take an additional full revolution of the crankshaft
before the camshaft sprocket marks are aligned. See Fig. 309.

TIMING BELT

NOTE:

The camshaft timing gears are keyed to the camshaft.

2007 Dodge Nitro R/T

2007 ENGINE 4.0L - Service Information - Nitro

Fig. 310: Timing Belt Inspection
Courtesy of CHRYSLER LLC

1. Remove front timing belt cover. See REMOVAL).

1 - PEELING
2 - TOOTH MISSING AND CANVAS FIBER EXPOSED
3 - RUBBER EXPOSED
4 - CRACKS
5 - PEELING
6 - ROUNDED EDGE
7 - ABNORMAL WEAR (FLUFFY STRAND)

2007 Dodge Nitro R/T

2007 ENGINE 4.0L - Service Information - Nitro