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Removing and installing injection pump: engine codeAFF, AHU, AFN,AVG > < Servicing injection pump: engine code AFF, AHU, AFN, AVG

A4 Mk1

TDI diesel injection and glow plug system (4-cyl.) 08.99 ä
Servicing Diesel direct injection system
Servicing injection pump: engine code AHH
 
A23-0038
  • ◆ Note safety precautions
  • ◆ Observe rules for cleanliness
  • ◆ Removing and installing injection pump
  • ◆ Dynamically checking and adjusting injection pump
  • Stretch bolt
    • ◆ Always renew
    • ◆ 20 Nm + 1/4 turn (90°)
  • Injection pump sprocket
  • Hub nut
    • ◆ Never slacken
  • 25 Nm
 
A23-0038
  • Supply pipe
    • ◆ From fuel filter
  • Fuel shut off valve
    • ◆ 20 Nm
  • Pipe union
    • ◆ For return pipe
    • ◆ 28 Nm
  • Return pipe
    • ◆ To control valve/fuel filter
  • 25 Nm
  • Injector pipes
    • ◆ Tighten to 25 Nm
    • ◆ Remove with 3035
    • ◆ Always remove pipework complete
    • ◆ Do not alter shape
  • Pressure valve
    • ◆ 45 Nm
  • 25 Nm
 
A23-0038
  • Injector
    • ◆ For 3rd cylinder with needle lift sender
    • ◆ Removing, installing and testing
  • 20 Nm
  • Retainer
  • Mounting
  • Copper seal
  • 12 Nm
  • Commencement of injection valve (N108)
  • Strainer
  • O-Ring
  • 25 Nm
 
A23-0038
  • Timing control cover
    • ◆ If leaking, replace O-ring
  • Console
  • 25 Nm

Removing and installing injection pump: engine codeAFF, AHU, AFN,AVG > < Servicing injection pump: engine code AFF, AHU, AFN, AVG