Service manual

6. With the engine in the number 6 firing position,
adjust the exhaust valves for cylinders
number 2, 5, 6, and 7 and the intake valves for
cylinders number 3, 4, 6, and 8.
6.1. Turn the valve rocker arm nut counter
clockwise until the valve lash is felt in the
valve pushrod.
6.2. Turn the valve rocker arm nut clockwise
until all the valve lash is removed.
Zero valve lash can be felt by moving the
valve pushrod up and down between
your thumb and forefinger until there is no
more up and down movement of the
valve push rod.
6.3. When all the valve lash is removed, then
turn the valve rocker arm nut clockwise
1 additional turn (360 degrees).
Intake Manifold Installation
SIE-ID = 66866
Notice: SIO-ID = 16302 Apply the proper amount of the
sealant when assembling this component. Excessive
use of the sealant can prohibit the component
from sealing properly. A component that is not sealed
properly can leak leading to extensive engine
damage.
Important: The lower intake manifold must be
installed and the fasteners tightened while the
adhesive is still wet to the touch.
1. Apply a 4.0 mm (0.157 in) patch of adhesive
GM P/N United States 12346141,
GM P/N Canada 10953433, or equivalent, to the
cylinder head side of the lower intake manifold
gasket at each end.
2. Install the lower intake manifold gasket onto the
cylinder head.
Use the gasket locator pins in order to properly
seat the lower intake manifold gasket onto
the cylinder head.
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38512
6-130 Engine Mechanical - 5.0L and 5.7L Engine
2002 - Unit Repair (May 25, 2001)