TM-9-2815-237-34 HMMWV Engine Direct Support & General Support Maintenance Manual Download
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TM 9-2815-237-34 2-32. FUEL INJECTION PUMP REPAIR (Cont’d) 48. 49. 50. 51. 52. 53. NOTE Machining marks between cam lobes should not be considered damage. Inspect cam lobes (16) on cam ring (15) for spalling or flaking out. Replace cam lobes (16) are spalled or flaked. ring (15) if cam Inspect all transfer pump blades (17) and transfer pump liner (18) for scoring or damage. Replace all transfer pump blades (17) and transfer pump liner (18) if any are scored or damaged. Using a micrometer, measure transfer pump blades (17) at point “A” to determine wear. If any transfer blade (17) is smaller than 0.538 in. (13.67 mm), replace all transfer pump blades (17) and transfer pump liner (18). Inspect governor weights (21) for excessive wear at heel (19) and toe (20) Replace governor weights (21) if excessively worn. Inspect delivery valve reaction cuff (22) for chipping or erosion. Replace delivery valve (23) if reaction cuff (22) is chipped or eroded. Inspect vent wire (25) in vent wire screw (24) for freedom of movement. If vent wire (25) is stuck, replace vent wire screw (24). 2-105