Rodeo LS 2WD V6-3165cc 3.2L SOHC (6VD1) (1997)
Valve Seat: Service and Repair
Valve Seat Insert Replacement
1. Arc weld the rod at several points. Be careful not to damage the aluminum section.
2. Allow the rod to cool for a few minutes. This will cause the valve seat to shrink.
3. Strike the rod and pull it out.
4. Carefully clean the valve seat press-fit section on the cylinder head side.
5. Heat the press-fit section with steam or some other means to cause expansion.
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Cool the valve seat with dry ice or some other means.
6. Insert the press-fit section into the valve seat horizontally.
7. After insertion, use a seat grinder to grind finish the seating face.
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Carefully note the seating angle, the contact width, and the depression.
8. Lap the valve and the seat.