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Cylinder Head: Inspection

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  1. Inspect the cylinder head for out-of-flatness using a straightedge and a feeler gauge. If tolerances exceed 0.0508 mm (0.002 in.) replace the cylinder head.
  2. Inspect the valve seats for damage. Service the valve seats as necessary.
  3. Inspect the valve guides for wear, cracks or looseness. If either condition exist, replace the cylinder head.
  4. Inspect the pushrods. Replace worn or bent pushrods.
  5. Inspect the cylinder head bolts.
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