Intake/Exhaust Valves & Seats; Description; Standard Procedure - Valve And Valve Seat Refacing - Chrysler 300M Service Manual

LH
CYLINDER HEAD COVER(S) (Continued)
Fig. 25 Cylinder Head Cover Gasket and Spark Plug
Tube Seals
1 - CYLINDER HEAD COVER GASKET
2 - SPARK PLUG TUBE SEALS
Fig. 26 Spark Plug Tube Seal Installation
1 - SPECIAL TOOL MD-998306
2 - SPARK PLUG TUBE SEAL
(4) For right cylinder head cover installation per-
form the following:
(a) Position A/C compressor on bracket and
install mounting bolts.
(b) Install A/C compressor belt. (Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
INSTALLATION)
(5) Position wire harness on cylinder head cover
and install retaining nuts (Fig. 22).
(6) Install ignition coils and connect all electrical
connectors (Fig. 23).
(7) Install upper intake manifold. (Refer to 9 -
ENGINE/MANIFOLDS/INTAKE
INSTALLATION)
(8) Install air cleaner assembly.
INTAKE/EXHAUST VALVES &
SEATS

DESCRIPTION

are chrome plated to prevent stem scuffing. The
intake valve is a one-piece forging, while the exhaust
valve has a forged head with a welded stem for lock
groove hardenability. The four valves (two intake and
two exhaust) employ a three-groove lock design to
help facilitate valve rotation.
STANDARD PROCEDURE - VALVE AND VALVE
SEAT REFACING
(Fig. 28).
VALVES
1 - MARGIN
2 - FACE
3 - STEM
4 - VALVE SPRING RETAINER LOCK GROOVES
are refaced (Fig. 27). (Refer to 9 - ENGINE - SPEC-
IFICATIONS)
VALVE SEATS
MANIFOLD -
the correct size valve guide pilot be used for reseat-
ing stones. A true and complete surface must be
obtained.
dial indicator. Total runout should not exceed 0.051
mm (0.002 inch.) total indicator reading.
Valves are made of highly heat-resistant steel and
The valve face and valve seat angles are shown in
Fig. 27 Intake and Exhaust Valves
(1) Inspect the remaining margin after the valves
(1) When refacing valve seats, it is important that
(2) Measure the concentricity of valve seat using
ENGINE 9 - 29