Chrysler 1997 Stratus Convertible RHD Service Manual page 766

VALVE RETAINER SPRING
9 - 30 2.4L ENGINE
REMOVAL AND INSTALLATION (Continued)
Fig. 44 Valve Stem Seal/Valve Spring Seat
CYLINDER HEAD
REMOVAL
(1) Perform fuel system pressure release proce-
dure before attempting any repairs. Refer to
Group 14, Fuel System for procedure.
(2) Disconnect negative battery cable. Drain cool-
ing system. Refer to Group 7, Cooling System for pro-
cedure.
(3) Remove air cleaner and disconnect all vacuum
lines, electrical wiring and fuel lines from throttle
body.
(4) Remove throttle linkage. Refer to Group 14,
Fuel System for procedures
(5) Remove accessory drive belts. Refer to Group
7, Cooling System for procedure.
(6) Remove power brake vacuum hose from intake
manifold.
(7) Raise vehicle and remove exhaust pipe from
manifold.
(8) Remove power steering pump assembly and
set aside.
(9) Disconnect coil pack wiring connector and
remove coil pack and plug wires from engine.
(10) Remove cam sensor and fuel injectors wiring
connectors.
(11) Remove timing belt and camshaft sprocket.
Refer to procedure outlined in this section.
(12) Remove timing belt idler pulley and rear tim-
ing belt cover.
(13) Remove cylinder head cover using procedure
outlined in this section.
(14) Remove camshafts and cam followers. Refer to
procedures outlined in this section for procedures.
(15) Remove cylinder head bolts and remove cyl-
inder head from engine block.
(16) Inspect and clean cylinder head. Refer to
Cleaning and Inspection outlined in this section for
procedures.
VALVE RETAINING LOCKS VALVE SPRING SEAT VALVE VALVESPRING SEAL ASSEMBLY AND
INSTALLATION
UNSTRETCHED STRETCHED BOLT BOLT
NOTE: The Cylinder head bolts should be exam-
ined BEFORE reuse. If the threads are necked
down, the bolts should be replaced (Fig. 45).
Necking can be checked by holding a scale or
straight edge against the threads. If all the threads
do not contact the scale the bolt should be replaced.
Fig. 45 Checking Bolts for Stretching (Necking)
(1) Before installing the bolts, the threads should
be coated with engine oil.
(2) Tighten the cylinder head bolts in the
sequence shown in (Fig. 46). Using the 4 step torque
turn method, tighten according to the following val-
ues:
• First All to 34 N·m (25 ft. lbs.)
• Second All to 68 N·m (50 ft. lbs.)
• Third All to 68 N·m (50 ft. lbs.)
CAUTION: Do not use a torque wrench for the fol-
lowing step.
• Fourth Turn an additional 1/4 Turn,
Fig. 46 Cylinder Head Tightening Sequence
(3) Install camshafts and cam followers. Refer to
procedures outlined in this section for procedures.
(4) Install cylinder head cover using procedure out-
lined in this section.
THREADS ARE NOT STRAIGHT ON LINE THREADS ARE STRAIGHT ON LINE
JX