Chrysler Sebring 2004 Service Manual page 1107

9 - 180 ENGINE 2.7L DOHC
VALVE SPRINGS (Continued)
INSTALLATION
INSTALLATION - IN VEHICLE
(1) 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 locks
(2) Follow the same procedure on the remaining
cylinders using the firing sequence 1-2-3-4-5-6. Make
sure piston is at TDC on the cylinder that the
valve spring is to be removed.
(3) Remove spark plug adapter tool and Special
Tool MD 998772A.
(4) Install rocker arm(s).
(5) Install camshafts (Refer to 9 - ENGINE/CYL-
INDER HEAD/CAMSHAFT(S) - INSTALLATION),
timing chain (Refer to 9 - ENGINE/VALVE TIMING/
TIMING BELT/CHAIN
INSTALLATION), and timing chain cover (Refer to 9
- ENGINE/VALVE TIMING/TIMING BELT / CHAIN
COVER(S) - INSTALLATION).
(6) Install cylinder head covers. (Refer to 9 -
ENGINE/CYLINDER
COVER(S) - INSTALLATION)
(7) Install upper intake manifold. (Refer to 9 -
ENGINE/MANIFOLDS/INTAKE
INSTALLATION)
(8) Install air cleaner housing and inlet hose.
(9) Connect negative cable.
INSTALLATION - OFF VEHICLE
(1) If removed, install valve(s). (Refer to 9 -
ENGINE/CYLINDER
VALVES & SEATS - INSTALLATION)
(2) If valves or seats have been reground, check
valve tip height (A) (Fig. 40). If valve tip height for
intake valve is greater than 47.59 mm (1.8737 in.) or
49.14 mm (1.9347 in.) for exhaust valve, grind valve
tip until within specifications. Make sure measure-
ment is taken from cylinder head surface to the top
of valve stem.
(3) Install valve seal/spring seat assembly over
valve guides on all valve stems (Fig. 41). Ensure that
the garter spring is intact around the top of the rub-
ber seal. Install valve springs, valve retainers.
AND SPROCKETS
HEAD/CYLINDER
MANIFOLD
HEAD/INTAKE/EXHAUST
Fig. 40 Valve Tip Height and Valve Spring Installed
1 - SPRING RETAINER
2 - GARTER SPRING
-
3 - VALVE SPRING SEAT TOP
4 - CYLINDER HEAD SURFACE
(4) Compress valve springs with a valve spring
compressor install locks and release tool. If valves
and/or seats
HEAD
installed height of springs (B) (Fig. 40), 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
in.), install a 0.762 mm (0.030 in.) spacer in head
counterbore under the valve spring seat to bring
spring height back within specification.
Fig. 41 Valve Seal and Spring
1 - VALVE RETAINING LOCKS
2 - VALVE SPRING RETAINER
3 - VALVE SPRING
4 - VALVE SEAL AND VALVE SPRING SEAT ASSEMBLY
5 - VALVE
Height
are reground, measure
JR
the