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Home >> Mitsubishi >> 1990 >> Precis Base, Automatic >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 1.5L 4-CYL - VINS [A,J,X] & 1.6L 4-CYL - VIN [Y] >> Overhaul >> Cylinder Head >> Valve Seats

Valve Seats

  1. To replace valve seats, cut valve seat to designated dimension. See Fig 1. Machine cylinder head to proper dimension. See OVERSIZED VALVE SEAT SPECIFICATIONS  table.
  2. Heat cylinder head to 480°F (250°C). Press replacement seat into cylinder head. Ensure valve seat height is within specification. Cut valve seat to proper angle to obtain correct seat width.
Fig 1: Cutting Valve Seat & Measuring Installed Height
G90J08798Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
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