(12) Install primary timing chain. Refer to proce-
dure in this section.
ROCKER ARMS
REMOVAL
(1) Remove cylinder head cover(s). Refer to proce-
dure in this section.
CAUTION: Always rotate engine by turning the
crankshaft. Failure to do so will result in valve
and/or piston damage.
(2) Rotate engine until the cam lobe is on its base
circle (heel), on the rocker arm being removed.
CAUTION: Depress valve spring only enough to
remove rocker arm.
(3) Using Special Tools 8215 and 8216 Adaptor,
depress valve spring only enough to release tension
on rocker arm (Fig. 58).
(4) Remove rocker arm from cylinder head.
CAUTION: If rocker arms are to be reused, identify
position of rocker arms for reassembly in their orig-
inal positions.
(5) Repeat procedure for each rocker arm being
removed.
INSPECTION
Inspect the rocker arm for wear or damage (Fig.
59). Replace as necessary.
INSTALLATION
(1) Lubricate rocker arms with clean engine oil
before installation.
(2) Rotate engine until cam lobe is on its base cir-
cle (heel) of rocker arm being installed.
(3) Using Special Tools 8215 and 8216 Adaptor,
depress valve spring only enough to install rocker
arm (Fig. 58).
(4) Install rocker arm in original position (if
reused) over valve and lash adjuster. Release tension
on valve spring.
Fig. 56 Camshaft Chain Timing
1 – PLATED CHAIN LINKS
2 – CAMSHAFT TIMING MARKS
Fig. 57 Camshaft End Play Measuring
1 – DIAL INDICATOR
Fig. 58 Rocker Arm—Removal/Installation
1 – SPECIAL TOOL 8215
2 – ADAPTOR 8216
LH 2.7L ENGINE 9 - 41
REMOVAL AND INSTALLATION (Continued)
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