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Home >> GMC >> 2016 >> Terrain SL, Gas >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Engine Mechanical - 3.6L (LFX) - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> Valve and Seat Grinding >> Valve Measurement Overview

Valve Measurement Overview

WARNING: This page is about a different variant/trim than selected.
    NOTE:

    The following measurement and reconditioning procedures must be followed to ensure proper engine performance.

  1. Proper valve service is critical to engine performance. Therefore, all detailed measurement procedures must be followed to identify components that are out of specification.
  2. If the measurement procedures reveal that the valve seat must be reconditioned, it is critical to perform the measurement procedures after reconditioning. Valves for E85-compatible engines CANNOT be reconditioned. Any grinding, lapping, wire-brushing or other similar procedure will damage or destroy the coating that gives the valve the E-85 compatible features. If an E85-compatible valve is out of specification in any area, replace it.
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