Replacement Procedure Of Valve Seat

WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.

Scrape the valve seat to be replaced from inside to make its wall thickness thin before pulling out.

Fig 1: Identifying Valve Seat Dimension
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Repair the valve seat hole of the cylinder head to match it with the diameter of the oversize valve seat to be press fitted.
Inlet valve seat bore diameter: 0.3 Over size: 36.22 - 36.24 mm (1.4260 - 1.4267 inch)

Exhaust valve seat bore diameter: 0.3 Over size: 30.22 - 30.24 mm (1.1898 - 1.1905 inch)

Fig 2: Identifying Valve Seat Height And Diameter
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Press fit the valve seat, taking care not to score the cylinder head bore at room temperature.
Ream the valve seat.
Refer to "REPAIR PROCEDURE OF VALVE SEAT ."