EM-12
ENGINE MECHANICAL - Troubleshooting (Diesel Engine Diagnosis)
EXCESSIVE FUEL CONSUMPTION
HINT: Check whether clutch slipping, brakes grabbing, tires wrong size or air filter clogged.
(Possible Cause)
(Check Procedure and Correction Method)
1. FUEL LEAKAGE
2. IDLE SPEED TOO HIGH
3. MAXIMUM SPEED TOO HIGH
4. IMPROPER INJECTION TIMING
5. FAULTY INJECTION NOZZLES
Refer to step 3 of ROUGH IDLE WITH WARM
ENGINE.
After sufficiently warming up engine, check idle
speed. (See page EM-27)
Idle speed:
1PZ 600-700 rpm
1 H Z M / T 600-700 rpm
1HZA/T 660-760 rpm
1HD-T M/T 600-700 rpm
1H D -T A/T 750 - 850 rpm
If not as above, adjust with idle speed adjusting
screw.
Check maximum speed. (See page EM-27)
Maximum speed:
1PZ and 1 HZ 4,500 - 4,700 rpm
1H D -T 4,300 - 4,500 rpm
If not as above, adjust with maximum speed adjust-
ing screw.
Refer to step 7 of ENGINE CRANKS NORMALLY
BUT WILL NOT START.
Refer to step 9 of ENGINE CRANKS NORMALLY
BUT WILL NOT START.
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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 ...