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Home >> Cadillac >> 2005 >> Escalade ESV >> Repair and Diagnosis >> External Pages >> Different car >> Section 137 (Engine Mechanical - 8.1L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Valve Guide Reaming/Valve and Seat Grinding >> Valve Guide Reaming Procedure for Oversized Valve Stems

Valve Guide Reaming Procedure for Oversized Valve Stems

WARNING: This page is about a different car, the 2005 GMC Yukon XL, 2005 Chevrolet Suburban, and 2005 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Reaming Valve Guide
    GM4956Courtesy of GENERAL MOTORS CORP.
  1. Ream the 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 the valve guide bores or installing new valves.
  3. Replace the cylinder head if the valve guide cannot be repaired or reamed to accept an oversize valve stem.
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