Quantcast c.  Inspection and Repair (Contd) - TM-9-2815-225-34P_167

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TM 9-2815-225-34&P 3-35.  CYLINDER HEAD AND VALVE REPAIR (Contd) LOCATION/ITEM ACTION REMARKS c.  Inspection and Repair (Contd) 18. Two injector (2)  Using gauge block (46), Use this measurement to sleeves (7) (Contd) measure protrusion of injector determine amount that must be assembly (43) tip. cut from sleeve.  The protrusion of injector tip must be 0.060- 0.070 in. (1.524-1.778 mm). (3)  Remove two screws (45), injector clamp (44), and injector assembly (43) from injector sleeve (7). (4)  Install cutter (55) and pilot Use injector seat cutter (ST-884) (49) on drill press and cut (55).  Ensure enough cutting oil injector sleeve (7). is used to allow cutter (55) to cut freely without grabbing.  When proper cut depth is reached, allow cutter (55) to turn in position for about 10 seconds to ensure a smooth seat. (5)  Check injector (43) seating. Refer to step 18b pattern. (6)  Check protrusion of Refer to step 18c. injector assembly (43) tip. 19. Eight valve springs (4) a.  Inspect for distortion, cracks, Discard valve spring (4) if breaks, and collapsed coils. damaged. b.  Using tester (56), compress to Use valve spring tester working length of 1.724 in. (3375182) (56). (4.379 cm). c.  Record amount of force required Discard if less than wear limit to compress valve spring (4). shown below. Wear Limit  ...................................................................... 143.00 lb (64.92 kg) New Minimum  ................................................................. 147.25 lb (66.85 kg) New Maximum  ................................................................ 162.75 lb (73.89 kg) 3-136


 


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