Daewoo D70S-2 - 6. Cause of Trouble, Diagnosis and Troubleshooting; 6.1. Starting Trouble

6. Cause of Trouble, Diagnosis and Troubleshooting
1) Starting Trouble
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Statement Cause Remedy
Start Motor (1) Magenetic switch does not operate when turn starter swicth Trouble of circuit
1. Distribution inferiority, disconnection, connection inferiority, Correction
2. starter switch connection inferiority Replacement
3.Coil disconnection of magenetic switch, strain Replacement
4. bend of flanger shaft
Correction or replacement
5. fixed humidity part of flanger. Correction or replacement
(2) Magnetic switch operate, but pinion does not clamp with ring gear
1. Defect of amateur shaft bearing
Correction or replacement
2. Pinion & ring gear was excessive wore, changed. Correction or replacement
3. Shortage of battery Charge or replacement
4. Inferiority of Pinion moving Wash
5. Flanger & connector shaft fixed Correction or replacement
(3) Pinion clamped with ring gear, but engine does not turn
1. Pinion clutch skip Replacement
2. Amateur field coil strain Replacement
3. Brush & communicator inferiority
Correction or replacement
4. Shortage of battery Charge or replacement
5. Earth inferiority correction
Fuel System (1) Fuel does not feed from feed pump
Trouble 1. No fuel Replenish
2. Clogged fuel tank strainer Wash
3. Clogged fuel tank or air in fuel line correction
4. Defect of fuel feed pump valve Replacement
5. Feed pump piston & push rod fixed
Correction or replacement
6. Clogged fuel pump strainer Wash
(2) Fuel does not inject from injection pump
1. Clogged fuel filter element Replacement
2. Continually opened over flow valve of fuel filter Replacement
3. Air in fuel filter or injection pump Removal air
4. flanger, delivery valve fixed Correction or replacement
(3) Unfitness of fuel injector
1. Injection timing Inferiority correction
2. Unfitness of fuel timing correction
3. cam or cam shaft excessive wore Replacement
(4) Injection nozzle does not operate
1. Needle valve fixed
Correction or replacement
2. Leakage between nozzle and needle valve Correction or replacement
3. Unfitness of injection pressure