Dodge Nitro. Manual — part 25

Fig. 76: Cylinder Head Bolt Tightening Sequence
Courtesy of CHRYSLER LLC

2. Position the new cylinder head gasket on the locating dowels.

3. Position the cylinder head onto the cylinder block. Make sure the cylinder head seats fully over the

locating dowels.

* - INDICATES SEALANT ON THREADS

CAUTION: When installing cylinder head, use care not damage the tensioner

arm or the guide arm.

NOTE:

The four M8 cylinder head mounting bolts (1) require sealant to be added
to them before installing. Failure to do so may cause leaks.

2007 Dodge Nitro R/T

2007 ENGINE 3.7L - Service Information - Nitro

4. Lubricate the cylinder head bolt threads with clean engine oil and install the eight M10 bolts.

5. Coat the four M8 cylinder head bolts with Mopar Lock and Seal Adhesive then install the bolts.

6. Tighten the bolts in sequence using the following steps and torque values. See Fig. 76 :

Step 1: Tighten bolts 1-8, 27 N.m (20 ft. lbs.).

Step 2: Verify that bolts 1-8, all reached 27 N.m (20 ft. lbs.), by repeating step 1 without loosening
the bolts. Tighten bolts 9 thru 12 to 14 N.m (10 ft. lbs.).

Step 3: Tighten bolts 1-8, 90°.

Step 4: Tighten bolts 1-8, 90°, again. Tighten bolts 9-12, 26 N.m (19 ft. lbs.)

NOTE:

The cylinder head bolts are tightened using an angle torque procedure,
however, the bolts are not a torque-to-yield design.

2007 Dodge Nitro R/T

2007 ENGINE 3.7L - Service Information - Nitro

Fig. 77: Special Tool 8429, Camshaft Chain & Crankshaft Timing Gear
Courtesy of CHRYSLER LLC

1 - SPECIAL TOOL 8429
2 - CAMSHAFT CHAIN
3 - CRANKSHAFT TIMING GEAR

2007 Dodge Nitro R/T

2007 ENGINE 3.7L - Service Information - Nitro

Fig. 78: Camshaft Sprocket V6 Marks
Courtesy of CHRYSLER LLC

7. Position the secondary chain (2) onto the camshaft drive gear, making sure one marked chain link is on

either side of the V6 mark. See Fig. 77 and Fig. 78 (1) on the gear then using the Camshaft Holder 8428,
position the gear onto the camshaft.

8. Install the camshaft drive gear retaining bolt.

9. Install the right side secondary chain guide. See INSTALLATION.

CAUTION: Remove excess oil from camshaft sprocket retaining bolt before

reinstalling bolt. Failure to do so may cause over-torquing of bolt
resulting in bolt failure.

2007 Dodge Nitro R/T

2007 ENGINE 3.7L - Service Information - Nitro