Chrysler Concorde 1993 Service Manual page 436

(3) Install valve seal/spring seat assembly over valve
guides on all valve stems (Fig. 30). Ensure that the
garter spring is intact around the top of the rubber
seal. Install valve springs, valve retainers.
(4) Compress valve springs with a valve spring com-
pressor install locks and release tool. If valves and/or
seats are reground, measure the installed height
of springs (B) (Fig. 29), make sure measurements
are taken from top of spring seat to the bottom
surface of spring retainer. If height is greater than
38.75 mm (1.5256 inches.), install a .762 mm (0.030
inch) spacer in head counterbore under the valve
spring seat to bring spring height back within specifi-
cation.
Fig. 30 Installing Valve, Seal/Spring Seat Assembly,
Spring, Retainer and Locks
REPLACE VALVE STEM SEALS OR VALVE
SPRINGS, CYLINDER HEAD NOT REMOVED
(1) Perform fuel system pressure release procedure
before attempting any repairs. Refer to Group 14
Fuel System for procedure.
(2) Disconnect negative battery cable.
(3) Remove Air Cleaner Cover and hose assembly.
(4) Remove Intake
Intake/Exhaust Manifold 3.5L Engine Group 11 Ex-
haust System and Intake Manifold of this manual for
removal procedure.
(5) Remove cylinder head covers and spark plugs.
Refer to this section for procedure.
(6) Remove ignition coils and intake manifold sup-
port bracket.
(7) Remove rocker arms assembly. Refer to this
section for procedure.
(8) Rotate the crankshaft by the pulley retaining
screw, till the number 1 piston is at Top Dead Center on
the compression stroke.
(9) With air hose attached to spark plug adapter
installed in number 1 spark plug hole, apply 90 to 100
psi air pressure (620.5 to 689 kPa). This is to hold
valves into place while servicing components.
(10) Using Tool MD 998772A with adapter 6527 or
Equivalent compress valve spring and remove retainer
valve locks and valve spring.
(11) The valve stem seal/valve spring seat should be
pushed firmly and squarely over the valve guide using
the valve stem as guide. Do Not Force seal against
top of guide. When installing the valve retainer locks,
compress the spring only enough to install the locks.
CAUTION:Do not remove garter spring around the
seal at the top of the valve stem seal (Fig. 29).
(12) Follow the same procedure on the remaining 5
cylinders using the firing sequence 1-2-3-4-5-6. Make
sure piston in cylinder is at TDC on the valve
spring that is being covered.
(13) Remove spark plug adapter tool .
(14) Remove Special Tool MD 998772A and install
rocker arm assembly. Refer to procedure outlined in
this section.
(15) Install rocker arm covers. Refer to procedure
outline in this section.
(16) Install intake manifold support bracket and
ignition coil.
(17) Install Intake Manifold; Refer to Intake Mani-
fold Installation 3.5L Engine, Group 11 Exhaust Sys-
tem and Intake Manifold.
3.5L ENGINE 9 - 53
Manifold; Refer to