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Home >> Mitsubishi >> 2010 >> Lancer ES, Standard >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> Engine Overhaul <2.0L Non-Turbo> - Lancer >> Cylinder Head And Valves >> Inspection >> Valve Seat

Valve Seat

Assemble the valve, then measure the contact width. If the measurement exceeds the specified limit, replace the valve seat.

Standard value 

Intake: 1.16 - 1.46 mm (0.046 - 0.058 inch) 

Exhaust: 1.35 - 1.65 mm (0.053 - 0.065 inch) 

CAUTION: If the variation in the width exceeds 0.2 mm (0.008 inch) even if the contact width is within the standard value, replace or correct the valve seat.
Fig 1: Measuring Contact Width
G06671057Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
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