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6A–56 ENGINE MECHANICAL (6VD1 3.2L) 3. Apply abrasive compound to the valve seat insert surface. 4. Insert the valve into the valve guide. insert. 6. Check that the valve contact width is correct. with the entire circumference of the valve. 014RS014 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. 014RS015 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. Cool the valve seat with 6. Insert the press–fit section into the valve seat horizontally. Standard fitting interference: 0.14 mm–0.09 mm 7. After insertion, use a seat grinder to grind finish the seating face. Carefully note the seating angle, the 8. Lap the valve and the seat. Reassembly 1. Install valve guide (1) to cylinder head. Apply engine oil to the outside of the valve guide. Using valve guide 2. Install oil controller (3) and spring lower seat (2). Using oil controller replacer 5–8840–0623–0, drive in 014RW058 |