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6.3.8. Removal and installation of the preliminary fuel pump

Model 463.323 (M612)

Details of installation of the preliminary fuel pump (M612)

1 — the Vacuum line
2 — the Vacuum pump
3 — the Line of supply of fuel

4 — the Line of return of fuel
13 — the Preliminary fuel pump

 PERFORMANCE ORDER

  1. Remove panels of finishing of a cover of a head of cylinders.
  2. Remove the vacuum pump (2).
  3. Disconnect from the preliminary pump (13) lines of giving (3) and return (4) fuels.
  4. Turn out fixing bolts and remove pump assembly (13), - prepare for collecting the spilled fuel.

Do not open pump assembly!

  1. Installation is made upside-down, - before installation the preliminary pump should be filled with fuel. Track respect for purity of the interfaced surfaces of the installed components, do not forget to replace sealing laying.
  2. In conclusion start the engine and check the corresponding components of a power supply system for existence of signs of development of leaks.

Model 463.333 (M628)

Details of installation of the preliminary fuel pump (M628)

1 — the Preliminary fuel pump
2 — Bolts

3 — TNVD
4 — the Activator of the drive of a butterfly valve with the top air ducts

 PERFORMANCE ORDER

  1. Remove the air cleaner and the activator of the drive of a butterfly valve with the top air ducts (see the Section Service of Components of an Inlet Air Path).
  2. Turn out fixing bolts (2) and remove assembly of the preliminary fuel pump (1), - prepare for collecting the spilled fuel.
  3. Installation is made upside-down, - before installation the preliminary pump should be filled with fuel. Track respect for purity of the interfaced surfaces of the installed components, do not forget to replace sealing laying.
  4. In conclusion start the engine and check the corresponding components of a power supply system for existence of signs of development of leaks.