Valve Guide Replacement Procedure

WARNING: This page is about a different car, the 2003 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.

Using a press, remove the valve guide toward the cylinder block.
CAUTION: Do not install a valve guide of the same size again.
Rebore the valve guide hole of the cylinder head so that it fits the press-fitted oversize valve guide.
1. Valve guide hole diameters
2. 0.05 oversize 11.05 - 11.07 mm (0.4350 - 0.4358 inch)
3. 0.25 oversize 11.25 - 11.27 mm (0.4430 - 0.4436 inch)
4. 0.50 oversize 11.50 - 11.52 mm (0.4528 - 0.4535 inch)
  
  Fig 1: Identifying Valve Guide Removal And Installation Method
  Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Press-fit the valve guide until it protrudes 14.0 mm (0.55 inch) from the cylinder head top surface as shown in the illustration.
NOTE: When press-fitting the valve guide, work from the cylinder head top surface.

NOTE: Pay attention to the difference in length of the valve guides. [Intake side: 45.5 mm (1.79 inches); exhaust side: 50.5 mm (1.99 inches)]

NOTE: After installing the valve guides, insert new valves in them to check for smooth operation.

Fig 2: Identifying Valve Guide Protrusion Dimension
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.