Vauxhall Workshop Service and Repair Manuals

Adjust timing (Z 12 XE, Z 12 XEP, Z 14 XEP, with air conditioning, LHD)

  Remove

1.   Open bonnet 2.   Disconnect 4 cable management wiring harness plugs •   Oil pressure switch (2), coolant temperature sensor (3), camshaft sensor (4) and ignition module (1) •   Unclip wiring trough (5) •   Set wiring harness to one side

3.   Remove ignition module •   Remove ignition module cover – Move to the right •   Unscrew 2 bolts •   Extract using KM-6009 (1) Note:   Do not tilt 4.   Remove cylinder head cover •   Detach 2 engine vent hoses •   Unscrew 13x bolt 5.   Raise vehicle

6.   Remove ribbed V-belt cover •   Unscrew 3 bolts (1) •   Remove clip (arrow)

7.   Remove closure bolt for crankshaft bearing bridge (1) 8.   Lower vehicle 9.   Set no.1 cylinder to TDC •   Insert KM-952 (2) – Turn crankshaft uniformly until KM-952 engages Note:   Mark on crankshaft belt pulley (4) must line up with lug (3) on timing case

10.   Insert KM-953 (1) •   KM-953 must engage in camshaft groove Note:   If the KM-953 cannot be inserted, a basic timing adjustment must be made

11.   Attach KM-954 (1) •   Position on phase sensor disc (2) Note:   KM-954 must engage in groove in phase sensor disk 12.   Remove retaining tools Note:   Retaining tools must not be used for counterholding •   KM-952 , KM-953 , KM-954

13.   Remove air cleaner housing (1) •   Disconnect 2 wiring harness plugs – Hot film mass air flow sensor (3), tank vent valve (2) •   Unclip tank vent valve •   Remove suction pipe (4) – Unscrew 2 nuts •   For Z 12 XEP, Z 14 XEP: detach air intake hose •   Remove bolt (arrow)

14.   Lock chain tensioner •   Remove closure bolt (1) •   Load intake camshaft in direction of arrow via hexagonal section using an open-ended spanner •   Insert KM-955-1 (2)

15.   Release camshaft sprockets •   Loosen 2 bolts (2) – Counterhold camshafts at hexagonal section (1) 16.   Replace camshaft sprocket bolts 17.   Insert KM-952

18.   Adjust camshafts •   Insert KM-953 (1) – Turn the camshafts at hexagonal section

19.   Attach KM-954 (1) •   Position on phase sensor disc (2) Note:   KM-954 must engage in groove in phase sensor disk

21.   Fasten camshaft sprockets Note:   Tightening torque of 10 Nm is used to secure the camshaft sprockets and the phase sensor disk •   Tighten 2 bolts (2) 10 Nm Note:   First tighten intake camshaft sprocket bolt – Counterhold camshafts at hexagonal section (1) 22.   Remove retaining tools Note:   Retaining tools must not be used for counterholding •   KM-952 , KM-953 , KM-954 23.   Fasten camshaft sprockets Note:   Second person required •   Tighten 2 bolts 50 Nm + 60° Note:   First tighten intake camshaft sprocket bolt – Counterhold camshafts at hexagonal section

  Install

30.   Clean sealing surfaces •   Cylinder head, cylinder head cover 31.   Attach cylinder head cover (1) •   Renew gasket (2) and seal rings •   Apply sealant (dimension I = 2 mm) Note:   Complete assembly operations within 10 minutes •   Tighten 13 bolts 8 Nm 32.   Attach 2 engine vent hoses