Disassembly; Inspection - Chrysler 300M Service Manual

LH
ROCKER ARM / ADJUSTER ASSEMBLY (Continued)
Fig. 38 Purging Air From Lash Adjuster
1 - SPECIAL TOOL 8351
2 - OIL AIR RELIEF SERVICE ACCESS HOLE
3 - ROCKER ARM ASSY
4 - INTERNAL CHECK BALL
5 - VALVE TIP
6 - HYDRAULIC LASH ADJUSTER WITHIN ROCKER ARM
(1) Remove cylinder head covers. (Refer to 9 -
ENGINE/CYLINDER
COVER(S) - REMOVAL)
(2) Identify the rocker arm assembly and rocker
arms before disassembly (Fig. 39).
(3) Remove rocker arm assembly bolts.
(4) Remove rocker arm assembly.
NOTE: To prevent air ingestion into lash adjusters,
avoid turning rocker arm assembly upside down.
CAUTION: Do not allow rocker arm assembly to rest
on lash adjusters, as damage may occur to lash
adjusters and/or plastic retainers.
Fig. 39 Rocker Arms and Shafts
HEAD/CYLINDER

DISASSEMBLY

(1) Remove rocker arm and shafts. (Refer to 9 -
ENGINE/CYLINDER
ADJUSTER ASSY - REMOVAL)
(2) Remove dowel pin using a 4 mm screw, nut,
spacer, and washer installed into the pin (Fig. 40).
Thread the screw into the pin, then loosen the nut on
the screw. This will pull the dowel out of the shaft
support. Do not reuse dowel pins. Remove the rocker
arms and pedestals in order.
Fig. 40 Rocker Arms and Shaft - Disassembly
1 - 4mm SCREW AND NUT
HEAD
2 - 4mm SCREW AND NUT
3 - WASHER
4 - SPACER
5 - DOWEL
6 - DOWEL
7 - SPACER
8 - WASHER
(3) Check the rocker arm mounting portion of the
shafts for wear or damage. Replace if damaged or
heavily worn.
(4) Check shaft oil holes for clogging with small
wire, clean as required.

INSPECTION

The rocker arm shafts are hollow and are used as
lubrication oil ducts. The rocker arm and shaft
assembly on the right side of the engine has an oil
passage hole from the cylinder head located at the
third rocker shaft support pedestal. The rocker arm
and shaft assembly on the left side of the engine has
an oil passage hole from the cylinder head located at
the second rocker shaft support pedestal.
NOTE: To prevent air ingestion into lash adjusters,
avoid turning rocker arm assembly upside down.
CAUTION: Do not allow rocker arm assembly to rest
on lash adjusters, as damage may occur to lash
adjuster and plastic retainer.
ENGINE 9 - 35
HEAD/ROCKER ARM /