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2005
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Optra5 LS, Standard
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Repair and Diagnosis (Single Page)
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Engine Mechanical
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Mechanical
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Engine Mechanical - 1.8L (L79)
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Repair Instructions
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Valve Rocker Arm and Shaft Cleaning and Inspection
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Cleaning Procedure
Cleaning Procedure
CAUTION:
Refer to
Safety Glasses Caution
in Cautions and Notices.
Fig 1: View Of Cylinder Head Cleaning Procedure
Courtesy of GENERAL MOTORS CORP.
Clean the cylinder head.
Clean the valve guides.
Clean all of the threaded holes.
Clean the valves of carbon, oil, and varnish.