TM   10-3930-638-24&P 3-4. FUEL SYSTEM TROUBLESHOOTING (cont) MALFUNCTION TEST  OR  INSPECTION CORRECTIVE   ACTION 3. ENGINE HARD TO START (cont) Step 15. Check adjustment of torque screw (para 4-3b; notify general support maintenance). a. If torque screw out of adjustment, adjust (para 4-3b). b. If torque screw adjustment is okay, proceed to step 16. Step 16. Disassemble automatic advance components and inspect (para 4-3b; notify general support maintenance). a. If automatic advance components are worn or damaged, replace and adjust (para 4-3b). b. If automatic advance components are okay, proceed to step 17. Step  17.  Check  delivery  valve  screw  for  tightness  (para  4-3b;  notify  general  support  maintenance). a. If delivery valve screw is loose, tighten (para 4-3b). b. If delivery valve screw is tight, remove it. Then, remove delivery valve and inspect seat for erosion  (para  4-3b). 1) If seat is eroded, replace delivery valve (para 4-3b). 2) If seat is okay, reinstall, tighten delivery valve screw (para 4-3b) and proceed to step 18. Step 18. Check rotor for scores (para 4-3b; notify general support maintenance). Replace rotor (para 4-3b). 4. ENGINE STARTS AND STOPS Step 1. Check fuel injection pump timing (para 3-5a(3)). a. If fuel injection pump timing is not correct, adjust timing as described in paragraph 3-5a(3). b. If fuel injection pump timing is okay, proceed to step 2. Step 2. Disconnect fuel lines from fuel injection pump at fuel injectors (para 3-6a) one at a time, crank engine and check that fuel is pumped out of disconnected line. a. If fuel is not pumped out of any one disconnected fuel line when engine is cranked, replace associated connector screw (para 4-3b; notify general support maintenance). If fuel is not pumped out of any and all lines when disconnected, replace/clean inlet strainer (para 4-3b; notify general support maintenance). b. If fuel is cranked out of all lines when disconnected, proceed to step 3. Step 3. Remove governor control cover (para 4-3b; notify general support maintenance) and check solenoid frame and arm assembly for cracks and swelling in encapsulated material and looseness of screw terminals. Check continuity using an ohmmeter (para 4-3b; notify general support maintenance). 3 -9