Dodge 2000 DURANGO Service Manual page 555

9 - 46 4.7L ENGINE
REMOVAL AND INSTALLATION (Continued)
(14) Install the crankshaft
damper bolt 175 N·m (130 Ft. Lbs.).
(15) Install accessory drive belt.
(16) Install the fan shroud.
(17) Install the cylinder head cover.
(18) Install the intake manifold.
(19) Install oil fill housing onto cylinder head.
(20) Refill the cooling system.
(21) Raise the vehicle.
(22) Install the exhaust pipe onto the right
exhaust manifold.
(23) Lower the vehicle.
(24) Reconnect battery negitive cable.
(25) Start the engine and check for leaks.
VALVE SPRINGS AND SEALS
REMOVAL
(1) Remove the cylinder head cover. Refer to Cyl-
inder Head Cover in this Section.
(2) Using Special Tool 8516 Valve Spring Compres-
sor, remove the rocker arms and the hydraulic lash
adjusters (Fig. 67).
Fig. 67 Rocker Arm—Removal
1 – CAMSHAFT
2 – SPECIAL TOOL 8516
(3) Remove the spark plug for the cylinder the
valve spring and seal are to be removed from.
(4) Apply shop air to the cylinder to hold the
valves in place when the spring is removed
(5) Remove the camshaft. Refer to Camshaft in
this section.
damper. Tighten NOTE: All eight valve springs and seals are
removed in the same manner; this procedure only
covers one valve seal and valve spring.
sor, compress the valve spring.
NOTE: It may be necessary to tap the top of the
valve spring to loosen the spring retainers locks
enough to be removed.
NOTE: the valve spring is under tension use care
when releasing the valve spring compressor.
NOTE: The valve stem seals are common between
intake and exhaust.
INSTALLATION
install the valve stem seal. make sure the seal is
fully seated and that the garter spring at the top of
the seal is intact.
sor, compress the spring and install the two valve
spring retainer halves.
sure the two spring retainer halves and the spring
retainer are fully seated.
section.
rocker arms (Fig. 67).
HYDRAULIC LASH ADJUSTER
REMOVAL
dure in this section.
this section.
CAUTION: If lash adjusters and rocker arms are to
be reused, always mark position for reassembly in
their original positions.
(6) Using Special Tool 8387 Valve Spring Compres-
(7) Remove the two spring retainer lock halves.
(8) Remove the valve spring compressor.
(9) Remove the spring retainer, and the spring.
(10) Remove the valve stem seal.
(1) coat the valve stem with clean engine oil and
(2) Install the spring and the spring retainer.
(3) Using Special Tool 8387 Valve Spring Compres-
(4) Release the valve spring compressor and make
(5) Install the camshaft. Refer to Camshaft in this
(6) Position the hydraulic lash adjusters and
(7) Install the cylinder head cover.
(1) Remove cylinder head cover(s). Refer to proce-
(2) Remove rocker arm(s). Refer to procedure in
(3) Remove lash adjuster(s).
DN