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Home >> GMC >> 1991 >> Value Van 7.4 N >> Repair and Diagnosis >> External Pages >> Different car >> Section 87 (3.0L V6 - VIN [3]) >> Overhaul >> Cylinder Head >> Valve Guides

Valve Guides

WARNING: This page is about a different car, the 1995 Plymouth Voyager, 1995 Plymouth Grand Voyager, 1995 Dodge Grand Caravan, and 1995 Dodge Caravan. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check valve guide I.D. and valve stem-to-valve guide oil clearance. Clearance must be within specification. See CYLINDER HEAD  table under ENGINE SPECIFICATIONS.
  2. Measure valve guide protrusion from top of valve guide to spring seat area on cylinder head. Valve guide protrusion should be within specification. See CYLINDER HEAD  table under ENGINE SPECIFICATIONS. No service procedure is available from manufacturer.