Inspect - Winnebago 1987-1989 LeSharo Service Manual

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ENGINE OVERHAUL AND REBUILD
CYLINDER HEAD
INSPECT
• Inspect head for heat and stress cracks and
warpage.
• Inspect valve seats for excessive wear and
cracks.
• Inspect valve guides.
• Inspect cam bearing bores for scoring and wear.
If the bores are excessively scored or worn,
replace the cylinder head.
• Inspect camshaft lobes and journals for
excessive wear and scoring. If the lobes are
excessively worn or scored, be sure to inspect
the rocker area for similar wear.
• Inspect for cracks in the combustion chambers
and valve ports. Inspect for cracks in the gasket
surfaces at each coolant passage.
• Inspect valve heads for burns, cracks, pitting or
warpage.
• Inspect for scuffed or bent valve stems.
• Replace all damaged valves.
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