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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> Engine Mechanical >> Engine Mechanical 3.4L V6 - VIN (E) >> Overhaul >> Cylinder Head >> Valve Guides

Valve Guides

  1. Valve guides must be reamed for an oversize valve if valve stem-to-guide oil clearance exceeds specification. See CYLINDER HEAD  table under ENGINE SPECIFICATIONS. Valves are available with oversize stems.
  2. If oversize valves or oversize valve stem oil seals are not available, valve guide may be reamed to use a service bushing. Always use reamers in proper sequence (smallest first).
NOTE: Always grind valve seat after valve guide has been reamed or service bushing has been installed.
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