Quantcast ENGINE HARD TO START (CRANKING SYSTEM WORKING)

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TM   5-2815-241-34&P TROUBLESHOOTING  ON  ENGINE  TEST  STAND  -  CONTINUED MALFUNCTION TEST  OR  INSPECTION CORRECTIVE  ACTION 6.  ENGINE  FAILS  TO  START  (CRANKING  SYSTEM  WORKING). Step  1. Check fuel shutoff valve for correct operation. Replace defective fuel shutoff valve. Step  2. Check filter, gaskets, connections, and lines for air leaks. Replace  defective  filter,  leaking  gaskets,  connections,  and  suction lines. Step  3. Check  injector  timing  (page  2-106). Reset  injector  timing. Step  4. Check  valve  adjustment  (page  2-106). Readjust    valves. Step  5. Remove  injectors  (page  2-34).  Check  for  damaged  O-rings  (page  2-289). Replace  damaged  preformed  packing. 7. ENGINE HARD TO START (CRANKING SYSTEM WORKING). Step  1. Step  2. Step  3. Step  4. Step 5. Step  6. Step  7. Check filters, gaskets, connections, and lines for air leaks. Replace  defective  filter,  leaking  gaskets,  connections,  and  suction lines. Check all fuel lines for bends, breaks, or damage causing restriction. Repair or replace all restricted fuel lines. Check intake and exhaust manifolds for gasket leaks. Replace  leaking  gaskets  (page  2-272). Check  injector  timing  (page  2-106). Readjust  injector  timing. Check  valve  adjustment  (page  2-106). Readjust   valves. Remove  injectors  (page  2-34).  Check  for  damaged  preformed  packing  or cracked  injector  cups  (page  2-289). Replace  damaged  packing. Replace  cracked  injector  cups. Check engine for excessive blowby and wetness in exhaust caused by broken   or   damaged   rings. Isolate damaged cylinders and replace broken or damaged rings. 8.  ENGINE  MISSES  AT  HIGH  IDLE. Step  1. Check  filter,  gaskets,  connections,  and  suction  lines  for  air  leaks. Replace  defective  filter,  leaking  gaskets,  connections,  and  suction lines. Step  2. Check   injector   timing   (page   2-106). Reset  injector  timing. Step  3. Check  valve  adjustment  (page  2-106). Readjust    valves. 2-427


 


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