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Skoda Workshop Service and Repair Manuals

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Inspecting a tandem pump > < Removing and installing the sender for fuel gauge display G

Octavia Mk2

Removing and installing the tandem pump
Removing and installing the tandem pump
Special tools and workshop equipment required
t  Diesel extractor, e.g. -VAS 5226-
t  Pliers for spring strap clamps
  WARNING
Under no circumstances must the tandem pump be disassembled, otherwise it can lead to malfunction of the vacuum part. This will result in a failure of the brake booster.
  Caution
Observe instructions for installing again a used tandem pump → Chapter.
Removing
  Note
t  Safety precautions when working on the fuel supply system → Chapter.
t  Observe rules for cleanliness → Chapter.
–  Remove engine cover → Chapter.
   
–  Disconnect the fuel intake hose -1- (marked in white) and the fuel return-flow hose -2- (marked in blue) from the fuel filter.
–  Connect diesel extractor -VAS 5226- at fuel return-flow hose -2-.
–  Apply compressed air to diesel extractor -VAS 5226-.
–  Operate diesel extractor -VAS 5226- until no more fuel comes out of the fuel return-flow hose.
–  Remove air filter with air mass meter -G70- → Chapter.
  S20-0339
–  Separate vacuum line -1- for brake servo unit from tandem pump -4-.
–  Disconnect the fuel intake hose -2- (marked in white) and the fuel return-flow hose -3- (marked in blue) from the tandem pump -4-.
–  Release fixing screws -arrows- and remove tandem pump -4- from cylinder head.
Install
Installation occurs in reverse order to removal. Pay attention to the following:
  Caution
Observe instructions for installing again a used tandem pump → Chapter.
  Note
t  Ensure that the tandem pump coupling is correctly seated in the camshaft.
t  Always replace the gasket of the tandem pump.
  S20-0285
–  Install tandem pump and tighten the fixing screws -arrows- to 20 Nm.
  S20-0285
–  Connect fuel intake hose -1- (marked in white) to fuel filter.
–  Connect diesel extractor -VAS 5226- to return-flow hose -2-.
–  Operate diesel extractor -VAS 5226- until fuel flows out of the fuel return-flow hose.
–  Connect fuel return-flow hose -2- (marked in blue) to fuel filter.
  S20-0339

Inspecting a tandem pump > < Removing and installing the sender for fuel gauge display G