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Vauxhall Workshop Service and Repair Manuals

Technical Service Bulletins > < High-Pressure Pump, Remove and Install

Replace high-pressure pump

  Remove

1.   Open bonnet
2.   Disconnect battery
•   Detach ground connection from ground terminal
Slacken nut
3.   Remove engine cover (1)
•   Unclip engine vent hose from bracket (2)
•   Unscrew 2x bolts (4)
•   Unscrew oil filler cap (5)
•   Remove engine cover
•   Screw on oil filler cap
Note:   Re-attach any retaining rubbers (3) to the engine cover which may have become detached
Object Number: 8230686  Size: DEFAULT


4.   Remove air cleaner housing
5.   Raise vehicle by its full height
6.   Remove lower engine compartment cover and/or right-hand engine splash guard
7.   Place collecting basin underneath.
8.   Detach fuel return damping case (2)
•   Unclip wiring harness from bracket
•   Disconnect high-pressure pump wiring harness plug
•   Unclip 2x fuel lines from bulkhead bracket
•   Unclip fuel return line from bracket
•   Remove fuel return line (4) with KM-796-A
•   Detach fuel hose (1)
Release clamp
•   Disconnect oil leak line (3)
•   Unscrew 2x bolts (arrows)
Object Number: 3446062  Size: DEFAULT


9.   Detach high-pressure pump fuel supply line (1)
•   Release clamp
10.   Disconnect high-pressure pump wiring harness plug (2)
Object Number: 3446031  Size: DEFAULT


11.   Remove high pressure line (1) from high pressure pump to pressure chamber
Important:   When releasing the union nut, counterhold with open-ended wrench against the connection for the diesel high pressure fuel pump
•   Unscrew 2x union nuts
Note:   Seal pressure chamber, high-pressure pump and high-pressure line with sealing cap from kit (part number 9201697)
Object Number: 2408157  Size: DEFAULT


12.   Remove upper toothed belt cover
•   Unscrew 4x bolts (1) with EN-47631
•   Unscrew 2x bolts (2)
•   Unclip wiring harness
Object Number: 7360952  Size: DEFAULT


13.   Release wiring harness diesel electronics from intake manifold
•   Unscrew 2x bolts
•   Unclip from bracket
•   Disconnect wiring harness plug from injector 1
14.   Detach wiring harness bracket
•   Unscrew 2x bolts
Important:   The retaining bolt must be 40 mm long. The thread may be no more than 10 mm, otherwise the sliding of the high pressure pump drive gear on the bolts cannot be guaranteed.
15.   Adjust high-pressure pump
•   Turn the steering wheel to the right
•   Rotate the engine at the crankshaft in the direction of engine rotation until the retaining bolts (1) M6x40 in the high-pressure pump bracket can be turned
16.   Release high-pressure pump drive gear
•   Unscrew nut
Object Number: 10681032  Size: DEFAULT


17.   Slacken high pressure pump
•   Unscrew 3x nuts (1)
Note:   Place cloths under the high-pressure pump to prevent the loss of nuts
Object Number: 3446034  Size: DEFAULT


Important:   Make absolutely certain that the shaft of the high-pressure pump is not turned.
18.   Remove high pressure pump
•   Press completely off the high-pressure pump wheel using EN-46790
Object Number: 7360969  Size: DEFAULT


  Install

19.   Install high pressure pump
•   Tighten 3x new nut 25 Nm
Important:   Slide the high-pressure pump drive gear onto the high-pressure pump shaft by hand
20.   Fasten the high-pressure pump drive gear
•   Tighten nut 50 Nm
21.   Unscrew the retaining bolt from the high-pressure pump drive gear
22.   Install wiring harness bracket
•   Tighten 2x bolts
23.   Attach wiring harness diesel electronics to intake manifold
•   Connect wiring harness plug to injector 1
•   Clip into bracket
•   Tighten 2x bolts
Important:   Check the high-pressure pump wheel for fractures and cracks
24.   Install upper toothed belt cover
•   Tighten 4x bolts with EN-47631
•   Tighten 2x bolts
•   Attach wiring harness
25.   Install high-pressure line of high-pressure pump to pressure chamber
Note:   Use new high pressure lines
•   Detach sealing caps
•   Tighten 2x retaining nut
(M12) 25 Nm
(M14) 23 Nm
26.   Connect high-pressure pump wiring harness plugs
27.   Attach high-pressure pump fuel supply line
•   Fasten clamp
28.   Attach fuel return damping case
•   Tighten 2x bolts
•   Attach fuel return line
Note:   Must engage audibly
•   Attach fuel hose
Fasten clamp
•   Attach oil leak line
29.   Install air cleaner housing LUREF_1.gif
30.   Install engine cover
•   Clip in 4x
31.   Raise vehicle by its full height
32.   Attach water drain hose of air cleaner housing
33.   Install lower engine cover and right engine splash guard
34.   Lower vehicle by its full height
35.   Connect battery
•   Attach ground connection to ground terminal
Tighten nut
36.   Program volatile memories
37.   Close bonnet

Technical Service Bulletins > < High-Pressure Pump, Remove and Install