EM-67
ENGINE MECHANICAL - Cylinder Head
(e) Check the surface of the valve stem tip for wear.
If the valve stem tip is worn, resurface the tip with a grinder
or replace the valve.
NOTICE: Do not grind off more than the minimum
overall length.
12. INSPECT AND CLEAN VALVE SEATS
(a) Using a 45° carbide cutter, resurface the valve seats.
Remove only enough metal to clean the seats.
(b) Check the valve seating position. Apply a thin coat of
Prussian blue (or white lead) to the valve face. Lightly
press the valve against the seat. Do not rotate the
valve.
(c) Check the valve face and seat for the following:
• If blue appears 360° around the face, the valve is
concentric. If not, replace the valve.
• If blue appears 360° around the valve seat, the
guide and face are concentric. If not, resurface the
seat.
• Check that the seat contact is on the middle of the
valve face with the following width:
Intake 1.5-1.9 mm (0.059-0.075 in.)
Exhaust 1.8-2.2 mm (0.071 -0.087 in.)
If not, correct the valve seats as follows:
(1) If the seating is too high on the valve face, use
25° and 45° cutters to correct the seat.
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Страница 53: ...EM 42 ENGINE MECHANICAL Timing Gears TIMING GEARS COMPONENTS ...
Страница 65: ...EM 54 ENGINE MECHANICAL Cylinder Head CYLINDER HEAD COMPONENTS ...
Страница 95: ...EM 84 ENGINE MECHANICAL Cylinder Block CYLINDER BLOCK COMPONENTS ...
Страница 133: ...TURBOCHARGER SYSTEM Turbocharger TC 9 COMPONENTS ...
Страница 145: ...FU 6 FUEL SYSTEM Fuel Heater System FUEL HEATER SYSTEM SYSTEM CIRCUIT ...
Страница 166: ...FUEL SYSTEM Injection Pump FU 27 INJECTION PUMP REMOVAL OF INJECTION PUMP ...
Страница 169: ...FU 30 FUEL SYSTEM Injection Pump COMPONENTS ...
Страница 170: ...FUEL SYSTEM Injection Pump FU 31 COMPONENTS Cont d ...
Страница 171: ...FU 32 FUEL SYSTEM Injection Pump COMPONENTS Cont d ...
Страница 251: ...LU 4 LUBRICATION SYSTEM Troubleshooting TROUBLESHOOTING ...
Страница 255: ...LU 8 LUBRICATION SYSTEM Oil Pump OIL PUMP COMPONENT ...
Страница 262: ...LUBRICATION SYSTEM Oil Cooler Relief Valve and Check Valve LU 15 OIL COOLER RELIEF VALVE AND CHECK VALVE COMPONENTS ...
Страница 272: ...ST 4 STARTING SYSTEM Pre Heating System Super Glow Type TIMER CHARACTERISTIC DIAGRAM Cont d ...
Страница 281: ...STARTING SYSTEM Troubleshooting Starting System Circuit ST 13 TROUBLESHOOTING STARTING SYSTEM CIRCUIT ...
Страница 282: ...ST 14 STARTING SYSTEM Starting System Circuit STARTING SYSTEM CIRCUIT Cont d ...
Страница 340: ...B 1 STANDARD BOLT TORQUE SPECIFICATIONS Page STANDARD BOLT TORQUE SPECIFICATIONS B 2 ...
Страница 343: ...C 1 SSTAND SSM Page SST SPECIAL SERVICE TOOLS C 2 SSM SPECIAL SERVICE MATERIALS C 6 ...