3-18
DE541
NOTE: If the rocker arm assembly is to be disas-
sembled, label all rocker arms for installing pur-
poses. If the rocker arms are mixed up, the
complete overhead must be adjusted.
9. After labeling rocker arms and supports, remove
components from the rocker arm shaft.
10. Inspect the wear points on the rocker arm shaft and
using a micrometer, measure the shaft. The mea-
surements must be within specifications.
DE542
11. Measure the inside diameter of the rocker arms.
The measurement must be within specifications.
DE544
12. Inspect all components for cracks, flaking, galling,
or signs of discoloration.
13. Assemble the rocker arm assembly installing the
rocker arms and supports in the original positions
as removed coating all components with clean
engine oil. Hold components in place with rubber
bands.
DE529
Installing
NOTE: The flywheel end of the camshaft includes
a bolt-on eccentric to drive the lift pump. If the
eccentric has been removed, install and tighten
the cap screw to 58 ft-lb.
1. Coat the camshaft journals, lobes, and camshaft
bores in the cylinder head with clean engine oil;
then carefully insert the camshaft into the cylinder
head being careful not to nick or jam journals or
journal bores.
DE525
2. Install the lift pump eccentric bushing onto the
camshaft; then install the camshaft end cover
using a new O-ring. Tighten the cap screws
securely.
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