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Vauxhall Workshop Service and Repair Manuals

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Replace toothed belt drivewheel > < Replace toothed belt cover

Astra H

Replace toothed belt

  Remove

1.   Remove engine damping block adapter LUREF_1.gif
2.   Set cylinder no. 1 to TDC of combustion stroke
Note:   The mark on the camshaft sprocket (1) must align with the mark on the cylinder head cover (2).
Object Number: 2408170 Size: DEFAULT


3.   Remove toothed belt (1)
Note:   Mark direction of rotation.
•   Slacken the toothed belt tension roller
– Loosen bolt (2)
Object Number: 2408566 Size: DEFAULT


4.   Remove toothed belt tension roller
•   Unscrew bolt

  Install

5.   Clean the thread
6.   Install toothed belt tension roller
•   Insert tension roller in guide
•   Screw in bolt
Note:   Insert bolt with locking compound (red). The maximum installation time including torque check is 10 minutes.
7.   Set cylinder no. 1 to TDC of combustion stroke
Note:   The mark on the camshaft sprocket must align with the mark on the cylinder head cover.
8.   Install toothed belt
•   Observe prescribed direction of rotation
Important:   Tightened end (1) must be taut
•   Position toothed belt
9.   Raise vehicle by its full height
10.   Tension the toothed belt
•   Screw in bolt (6)
•   Tension toothed belt tension roller
Note:   Push adjusting lever in direction of arrow with a screwdriver (5) until pointer (4) of toothed belt tension roller aligns with mark (2).
•   Tighten bolt, toothed belt tension roller (3) 25 Nm
Object Number: 2408567 Size: DEFAULT


11.   Check crankshaft setting with EN-46788
•   Unscrew oil pump bolt (arrow)
•   Tighten stud bolt (1) EN-46788
•   Attach positioning disk (4) EN-46788
– Screw in bolt (3)
– Screw in nut (2)
•   Remove positioning disk EN-46788
Object Number: 3446087 Size: DEFAULT


12.   Lower vehicle by its full height
13.   Timing, Check
•   Turn crankshaft 720° in the direction of rotation of the engine
•   Check camshaft position
– The mark on the camshaft sprocket must align with the mark on the cylinder head cover.
14.   Raise vehicle by its full height
15.   Check crankshaft setting with EN-46788
Note:   If EN-46788 cannot be fitted, repeat the toothed belt positioning procedure
•   Attach positioning disk EN-46788
– Screw in bolt
– Screw in nut
•   Remove positioning disk and stud bolt EN-46788
•   Tighten oil pump bolt 9 Nm
16.   Lower vehicle by its full height
17.   Remove engine damping block adapter LUREF_1.gif

Replace toothed belt drivewheel > < Replace toothed belt cover