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CYLINDER HEAD EM-237 < UNIT DISASSEMBLY AND ASSEMBLY > [QR25DE] C D E F G H I J K L M A EM N P O c. Press valve guide from camshaft side to dimensions as shown in the figure. CAUTION: Cylinder head contains heat, when working, wear protective d. Apply reamer finish to valve guide with a valve guide reamer 2. Install valve seat if removed. CAUTION: Replace with oversize [0.5 mm (0.020 in)] valve seat. a. Ream cylinder head recess diameter for service valve seat. • Be sure to ream in circles concentric to the valve guide center. This will enable valve seat to fit correctly. b. Heat cylinder head to 110 to 130 ° C (230 to 266 ° F) by soaking in heated oil . c. Provide valve seats cooled well with dry ice. Press-fit valve seat into cylinder head. CAUTION: • Avoid directly to touching cold valve seats. :Cylinder head Projection “H” : Refer to PBIC3217J Standard : Refer to JSBIA2468ZZ : Valve seat For service parts : Oversize [0.5 mm (0.020 in)] . PBIC3218J PBIC3214J |