Dodge dakota 2002 Service Manual page 1279

9 - 30 ENGINE - 3.7L
ROCKER ARM
DESCRIPTION
The rocker arms are steel stampings with an inte-
gral roller bearing. The rocker arms incorporate a 2.8
mm (0.11 inch) oil hole in the lash adjuster socket for
roller and camshaft lubrication.
REMOVAL
NOTE: Disconnect the battery negative cable to pre-
vent accidental starter engagement.
(1) Remove the cylinder head cover (Refer to 9 -
ENGINE/CYLINDER
COVER(S) - REMOVAL).
(2) For rocker arm removal on cylinder #4, Rotate
the crankshaft until cylinder #1 is at BDC intake
stroke.
(3) For rocker arm removal on cylinder #1, Rotate
the crankshaft until cylinder #1 is at BDC combus-
tion stroke.
(4) For rocker arm removal on cylinders #3 and #5,
Rotate the crankshaft until cylinder #1 is at TDC
exhaust stroke.
(5) For rocker arm removal on cylinders #2 and #6,
Rotate the crankshaft until cylinder #1 is at TDC
ignition stroke.
(6) Using special tool 8516 Rocker Arm Remover,
press downward on the valve spring, remove rocker
arm (Fig. 22).
INSTALLATION
CAUTION: Make sure the rocker arms are installed
with the concave pocket over the lash adjusters.
Failure to do so may cause severe damage to the
rocker arms and/or lash adjusters.
NOTE: Coat the rocker arms with clean engine oil
prior to installation.
(1) For rocker arm installation on cylinders #4,
Rotate the crankshaft until cylinder #1 is at BDC
intake stroke.
(2) For rocker arm installation on cylinder #1,
Rotate the crankshaft until cylinder #1 is at BDC
combustion stroke.
(3) For rocker arm installation on cylinders #3 and
#5, Rotate the crankshaft until cylinder #1 is at TDC
exhaust stroke.
(4) For rocker arm installation on cylinders #2 and
#6, Rotate the crankshaft until cylinder #1 is at TDC
ignition stroke.
(5) Using special tool 8516 press downward on the
valve spring, install rocker arm (Fig. 23).
HEAD/CYLINDER HEAD
Fig. 22 Rocker Arm - Removal
1 - CAMSHAFT
2 - SPECIAL TOOL 8516
Fig. 23 Rocker Arm - Installation
1 - CAMSHAFT
2 - SPECIAL TOOL 8516
(6) Install the cylinder head cover (Refer to 9 -
ENGINE/CYLINDER
COVER(S) - INSTALLATION).
HEAD/CYLINDER
DR
HEAD