Contents: Camshaft Sprockets ⬇ Crankshaft sprocket ⬇ Tensioner pulley and upper idler…⬇ Lower guide pulley ⬇
Camshaft Sprockets
Right cylinder head camshaft sprocket
The exhaust valve shaft locating pin must fit into slot 1, and the intake valve shaft locating pin must fit into slot 2.
Left cylinder head camshaft sprocket
The exhaust valve shaft locating pin must fit into slot 4, and the intake valve shaft locating pin must fit into slot 3.
Removal
1. Remove the timing belt. Turn the crankshaft approximately 60° back. This reduces the likelihood of the valves touching the pistons.
2. Lock the camshaft sprocket using a homemade tool.
3. Lock the camshaft of the sprocket being removed using a wrench.
4. Remove the sprocket bolt.
5. Remove the sprocket.
6. Remove the remaining sprockets in a similar manner.
Installation
1. Check and replace camshaft seals if necessary.
2. The camshaft sprockets of the right cylinder head are marked 1 and 2, and the camshaft sprockets of the left cylinder head are marked 3 and 4 (see figure Right cylinder head camshaft sprocket and drawing Left cylinder head camshaft sprocket). The sprockets of both shafts on each head are identical. There are two marks on each sprocket. A table on the use of these marks is given below.
3. Install the sprockets. The dowel pins must be inserted into the corresponding slots (indicated by arrows).
4. Insert the bolts. The corresponding timing marks must be aligned with the slots in the cover (indicated by arrows).
5. Tighten the bolts to the specified torque.
(Text copied from an online resource opelbook.ru)
6. Tighten the bolts to the required angle.
7. Install the timing belt and outer cover.
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Camshaft Sprockets
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The label to use
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exhaust valves of the right cylinder head
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1
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intake valves of the right cylinder head
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2
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intake valves of the left cylinder head
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3
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exhaust valves of the left cylinder head
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4
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Crankshaft sprocket
Removal
1. Remove the timing belt.
2. Lock the crankshaft.
3. Unscrew the bolt.
4. Remove the sprocket.
5. Remove the bushing.
Installation
1. Inspect the shaft seal and replace it if necessary.
2. Insert the woodruff key, install the sprocket and tighten the bolt to the specified torque.
3. Tighten the bolt to the required angle.
Tensioner pulley and upper idler pulley
Removal
1. Remove the timing belt.
2. Unscrew the bolts (indicated by arrows) pulley bracket.
3. Remove the pulley bracket.
Installation
Install the pulley bracket and tighten the bolts.
Lower guide pulley
Removal
1. Remove the timing belt.
2. Unscrew the bolt (indicated by the arrow) and remove the pulley.
Installation
Installation is carried out in the reverse order of removal.
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