Inspecting A Tandem Pump - Skoda Octavia II 2004 Workshop Manual

Octavia II 2004 ➤ , Octavia II 2010 ➤
2.0/100; 103 kW TDI PD Engine - Edition 01.2018
– Unscrew screws -arrows-.
– Remove tandem pump -4- from cylinder head.
Installing
Installation occurs in reverse order to removal. Pay attention to
the following:
Note
Ensure that the tandem pump driver is correctly seated in the
♦
camshaft.
Always replace the tandem pump seals.
♦
– Install tandem pump and tighten the top fixing screws (M8) to
20 Nm.
– Tighten bottom fixing screws (M6) to 8 Nm.
– Connect fuel intake hose and vacuum hose to tandem pump.
– Connect the diesel extractor - VAS 5226- at the fuel return-
flow hose.
– Operate the diesel extractor - VAS 5226- until fuel comes out
of the fuel return-flow hose.
– Connect fuel return-flow hose (marked in blue) to the fuel line.
– Connect central plug for unit injectors.
1.15

Inspecting a tandem pump

1.15.1 Checking the feed pressure of the tan‐
dem pump, vehicles with engine code
BKD, AZV
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Special tools and workshop equipment required
♦ Tester for tandem pump e.g. -VAS 5187- with hollow screw -
VAS 5187/1A-
♦ Hose clamp - MP 7-602 (3094)-
♦ Pliers for spring-type clips
Test conditions
• The coolant temperature must be at least 85 °C.
• Unit injectors O.K.
• Fuel filter and fuel line must not be blocked.
174
Rep. gr.20 - Fuel supply system