Dodge dakota 2002 Service Manual page 1282

DR
CYLINDER HEAD - RIGHT (Continued)
Fig. 24 Checking Cylinder Head Bolts for Stretching
(Necking)
1 - STRETCHED BOLT
2 - THREADS ARE NOT STRAIGHT ON LINE
3 - THREADS ARE STRAIGHT ON LINE
4 - UNSTRETCHED BOLT
CAUTION: When cleaning cylinder head and cylin-
der block surfaces, DO NOT use a metal scraper
because the surfaces could be cut or ground. Use
only a wooden or plastic scraper.
(1) Clean the cylinder head and cylinder block
mating surfaces (Fig. 25).
Fig. 25 Proper Tool Usage For Surface Preparation
1 - PLASTIC/WOOD SCRAPER
(2) Position the new cylinder head gasket on the
locating dowels.
CAUTION: When installing cylinder head, use care
not damage the tensioner arm or the guide arm.
(3) Position the cylinder head onto the cylinder
block. Make sure the cylinder head seats fully over
the locating dowels.
NOTE: The four M8 cylinder head mounting bolts
require sealant to be added to them before install-
ing. Failure to do so may cause leaks.
(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.
NOTE: The cylinder head bolts are tightened using
an angle torque procedure, however, the bolts are
not a torque-to-yield design.
(6) Tighten the bolts in sequence using the follow-
ing steps and torque values:
• 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 degrees (Fig. 26).
• Step 4: Tighten bolts 1–8, 90 degrees, again.
Tighten bolts 9–12, 26 N·m (19 ft. lbs.)
Fig. 26 Cylinder Head Tightening Sequence
* - INDICATES SEALANT ON THREADS
CAUTION: The nut on the right side camshaft
sprocket should not be removed for any reason, as
the sprocket and camshaft sensor target wheel is
serviced as an assembly. If the nut was removed
retorque nut to 5 ft. lbs.( 60 in. lbs.).
ENGINE - 3.7L 9 - 33