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75459 108198 54760 Check the valve seats. On finding any slight scoring or burns, Heat the cylinder head to 80 ÷ 100°C and, using a suitable drift, fit in it the new valve seats, previously chilled in liquid Using the milling cutter 99394038 (1), clean the injector seat Mount the valves, block the seat of the electro-injectors and Using a dial gauge (1), check that, from the plane of the - Valve recessing: 0.5 ÷ 0.8 mm. - Injector protrusion: 2.77 ÷ 3.23 mm. - Glow plug protrusion: 3.78 mm. 540661 VALVE SEATS Recutting and replacing valve seats Figure 165 Figure 166 Figure 167 F1A ENGINE 95 D AILY E URO |