Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 1487
INSTALLATION
IN VEHICLE
1. The valve stem seal/valve spring seat (4) 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 (1), com-
press the spring (3) only enough to install locks (1).
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) (Refer to 9 - ENGINE/CYLINDER HEAD/ROCKER ARMS - INSTALLATION).
5. Install camshafts (Refer to 9 - ENGINE/CYLINDER HEAD/CAMSHAFT(S) - INSTALLATION), timing chain (Refer
to 9 - ENGINE/VALVE TIMING/TIMING BELT/CHAIN AND SPROCKETS - 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 HEAD/CYLINDER HEAD COVER(S) - INSTALLA-
TION).
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ENGINE - 2.7L DOHC - SERVICE INFORMATION
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7. Install upper intake manifold (1) (Refer to 9 -
ENGINE/MANIFOLDS/INTAKE
MANIFOLD
-
INSTALLATION).
8. Install air cleaner housing (3) and inlet hose (Refer
to
9
-
ENGINE/AIR
INTAKE
SYSTEM/AIR
CLEANER HOUSING - INSTALLATION).
9. Connect negative battery (1) cable.
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ENGINE - 2.7L DOHC - SERVICE INFORMATION
9 - 1973
OFF VEHICLE
1. If removed, install valve(s) (5)&(6) (Refer to 9 - ENGINE/CYLINDER HEAD/INTAKE/EXHAUST VALVES &
SEATS - INSTALLATION).
2. If valves or seats have been reground, check valve
tip height (5). If valve tip height for intake valve is
greater than 47.836 mm (1.883 in.) or 47.837 mm
(1.883 in.) for exhaust valve, grind valve tip until
within specifications. Make sure measurement is
taken from cylinder head surface to the top of valve
stem.
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ENGINE - 2.7L DOHC - SERVICE INFORMATION
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3. Install valve seal/spring seat assembly (4) over
valve guides on all valve stems (5).
NOTE: Ensure that the garter spring (9) is intact
around the top of the rubber seal. Install valve
springs (3) , valve retainers (1).
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 (4), make sure mea-
surements are taken from top of spring seat (6)
to the bottom surface of spring retainer (1). 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 seal/spring seat (8) to bring spring
height back within specification.
LX
ENGINE - 2.7L DOHC - SERVICE INFORMATION
9 - 1975
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