Dodge dakota 2002 Service Manual page 1559

9 - 310 ENGINE 5.9L DIESEL
INTAKE/EXHAUST VALVES & SEATS (Continued)
Fig. 35 Compressing Valve Springs with Tool
1 - SPECIAL TOOL 8319
(4) Lubricate the crossheads and push rod sockets
and install the rocker arms and pedestals in their
original locations. Tighten bolts to 36 N·m (27 ft. lbs.)
torque.
(5) Verify valve lash adjustment (Refer to 9 -
ENGINE/CYLINDER
VALVES & SEATS - STANDARD PROCEDURE).
(6) Install cylinder head cover and reusable gasket
(Refer to 9 - ENGINE/CYLINDER HEAD/CYLIN-
DER HEAD COVER(S) - INSTALLATION).
(7) Connect battery negative cables.
ROCKER ARM / ADJUSTER
ASSY
DESCRIPTION
The unique intake and exhaust rocker arms have
their own rocker shafts and are lubricated by pas-
sages intersecting the cylinder block main oil rifle.
Crossheads are used, which allow each rocker arm to
operate two valves.
The solid push rods are hardened at the rocker
arm and tappet contact areas for superior strength
and durability.
REMOVAL
(1) Disconnect the battery negative cables.
(2) Remove cylinder head cover (Refer to 9 -
ENGINE/CYLINDER
COVER(S) - REMOVAL).
(3) Remove the rocker arm/pedestal fasteners (Fig.
36) and remove rocker arm and pedestal from cylin-
8319–A
HEAD/INTAKE/EXHAUST
HEAD/CYLINDER
der head. Mark the arms and pedestals so they can
be installed in their original position.
CAUTION: When removing the rocker arms, the
sockets (Fig. 37) may come loose and fall into the
engine. Make sure they stay with the arm upon
removal/installation.
(4) Lift the push rod(s) up and out of the engine
(Fig. 38). Mark them so they can be installed in their
original position.
NOTE: The #5 cyl. intake and exhaust and #6 cyl.
intake and exhaust push rods must be raised
through the provided cowl panel access holes.
(5) Lift the crosshead(s) off of the valve stems.
Mark them so they can be installed in their original
position.
Fig. 36 Rocker Arm and Pedestal Removal
1 - ROCKER ARM
2 - PEDESTAL
CLEANING
Clean all components in a suitable solvent. If nec-
essary, use a wire brush or wheel to remove stubborn
deposits. Rinse in hot water and blow dry with com-
pressed air. Inspect oil passages in rocker arms and
pedestals. Apply compressed air to lubrication orifices
to purge contaminants.
HEAD
DR