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Home >> Plymouth >> 1990 >> Horizon Automatic >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 2.2L 4-CYL - VINS [C,D] & 2.5L 4-CYL - VINS [J,K] >> Overhaul >> Cylinder Head >> Valve Guides

Valve Guides

  1. Check valve stem oil clearance. Ensure valve stem diameter is within specification. Valve guide must be reamed for valve with oversize valve stem if clearance exceeds specification. See ENGINE SPECIFICATIONS .
  2. Valves are available with oversize valve stems of .006" (.15 mm), .016" (.40 mm) and .031" (.80 mm). Cylinder head must be replaced if guide cannot be cleaned using a .031" (.80 mm) reamer.
NOTE: DO NOT  ream valve guides from standard to maximum oversize in one step. Ream guides to oversize in gradual steps, so guides are reamed true in relation to valve seat.
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