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Valve Guide Reaming Procedure For Oversized Valve Stems

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  1. Ream valve guide as necessary to achieve proper valve stem-to-guide clearance with the new, oversized valve stems.
  2. Always recondition the valve seat after reaming valve guide bores or installing new valves.
  3. Replace cylinder head if valve guide cannot be repaired or reamed to accept an oversize valve stem.
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