Fuel Pump

  1. Pump Casing
  2. Sealing Ring
  3. Baffle Screw
  4. Spring Washer
  5. Pointer
  6. Cheese Head Screw
  7. Bolt
  8. Toggle Joint
  9. Hexagon Nut
  10. Lock Nut
  11. Cover
  12. Shaft Seal
  13. Set Screw
  14. Support Cup
  15. Spring Cup
  16. Thrust Spring
  17. Sleeve
  18. Circlip
  19. Control Sleeve
  20. Pump Element
  21. 'O' Ring
  22. Control Rod(Pump Rack)
  23. Dowel Pin
  24. Flange
  25. Spacer Sleeve
  26. Spring
  27. Valve Cone
  28. Valve Carrier
  29. Straight Pin
  30. Marking
  •  Plunger Barrel get stacked-If engine stopped for a longer period,then if engine starts and run at a high speed then due to uneven thermal expansion of plunger and barrel this problem occur.So after starting after a longer period the speed keep low about 20 minutes.This problem also occur due failure of fuel pump lubrication system, low quality lubrication oil is used or low quality plunger barrel(proper metal not used).
  • 'O' Ring Damage in High Pressure Line-'O' ring damage occur due to excess pressure in high pressure line.If fuel temperature increase 'O' ring also damaged.
  • Control Rod or Gear Teeth Broken-This is happened due to thermal stress or plunger barrel get stacked.
  • Plunger tip broken
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