Astra L4-1.8L (2009)
2. Clean the 4 thread, rear toothed belt cover.
3. Install the rear toothed belt cover.
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Coat the 4 bolts with locking compound (red).
Tighten the 4 new bolts to 6 Nm (53 lb in).
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Clip in the wiring trough cover.
Note: Do not tighten the bolt.
4. Attach the intake camshaft adjuster.
Install the bolt.
Note: Do not tighten the bolt.
5. Attach the exhaust camshaft adjuster.
Install the bolt.
Note: Note markings on the camshaft sprockets.
6. Insert MK-6340 .
7. Insert MK-6628 into camshafts.
Align camshafts using hexagon until MK-6628 can be inserted in both camshafts.
Note: Two mechanics required.
8. Tighten the exhaust camshaft adjuster.
Counterhold at the camshaft hexagon.
Tighten the exhaust camshaft adjuster to 65 Nm (48 lb ft) plus 120 degrees plus 15 degrees.
Note: Two mechanics required.
9. Tighten the intake camshaft adjuster.
Counterhold at the camshaft hexagon.
Tighten the intake camshaft adjuster to 65 Nm (48 lb ft) plus 120 degrees plus 15 degrees.
10. Tighten the exhaust camshaft adjuster closure bolt.
Replace the seal ring.
Tighten the bolt to 30 Nm (22 lb ft).
11. Tighten the closure bolt, intake camshaft adjuster.
Replace the seal ring.
Tighten the bolt to 30 Nm (22 lb ft).
12. Install the camshaft adjustment valve, exhaust camshaft.
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Tighten the bolt.
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Clip the wiring harness to the cylinder head.
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Connect the wiring harness plug.
13. Install the camshaft adjustment valve, intake camshaft.
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Tighten the bolt.
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Connect the wiring harness plug.
14. Install the camshaft sensor of exhaust camshaft.
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Tighten the bolt.
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Connect the wiring harness plug.
