Camshaft sprockets
Attention! Installation will require new sprocket mounting bolts.
Removing
1. Remove the toothed drive belt as described in Chapter 7.
2. Block the camshaft in one of two ways:
- A) Make a blocking tool from two pieces of steel strip (one is long, the other is short), and three nuts and bolts. One of the bolts forms the hinge of the bifurcated tool, the two remaining bolts connect its ends to the sprocket.
- b) Remove the camshaft cover (see chapter 4) and block the camshaft with a double ended wrench (see illustration).
3. Turn off a bolt of fastening and remove an asterisk from the end of a cam-shaft. If the sprocket dowel pin is loose in the camshaft, remove it and store with the sprocket.
4. If necessary, remove the second camshaft sprocket using the same method.
Installation
5. Before installation, check the seals for damage and leaks. If necessary, replace them as described in Chapter 9.
6. Place the dowel pin in working position at the end of the camshaft.
7. Please note that the camshaft sprockets are the same and each has two dowel pin holes. If the sprocket is installed on the intake camshaft, insert the pin into the hole marked «IN», and if on the exhaust camshaft, insert it into the hole marked «EX» (see illustration).
8. Insert the camshaft locating pin into the appropriate hole in the sprocket, then install the washer and new mounting bolt.
9. Block the sprocket and tighten the bolt of its fastening with the tightening torque (see specs), then tighten the bolt to the desired angle (see specs), using the socket and extension rod. When finished, tighten the bolt to the desired angle (see specs). It is recommended to use an angle template for this to ensure accuracy. If a template is not available, apply white paint to the bolt head and flywheel alignment marks - these will then help ensure that the bolt is turned to the desired angle.
10. Install the toothed belt as described in Chapter 7, then install the camshaft cover (see chapter 4).
Crankshaft sprocket
Attention! Installation will require a new sprocket mounting bolt.
Removing
11. Remove the toothed belt as described in Chapter 7.
12. Block the crankshaft in one of the following ways:
- A) Use the tool described in point 2, screwing its bolts into the opposite holes to mount the pulley.
- b) On manual transmission models, have an assistant select the highest gear and apply the brakes firmly.
- V) If the engine or transmission unit has been removed from the vehicle, block the flywheel/drive plate (see chapter 15).
13. Turn off a bolt of fastening and remove an asterisk from the end of the crankshaft. Discard the bolt - it must be replaced. If necessary, remove the sprocket key from the crankshaft and remove the spacer.
Installation
14. Place a spacer on the crankshaft (where filmed), then install the slotted key.
15. Align the sprocket with the key and place it in working position with the flange facing out. Install the washer and new mounting bolt.
16. Block the crankshaft and tighten the sprocket mounting bolt with a torque (see specs), then tighten the bolt to the desired angle (see specs), using the socket and extension rod. It is recommended to use an angle template for this to ensure accuracy. If a template is not available, apply white paint to the bolt head and flywheel alignment marks - these will then help ensure that the bolt is turned to the desired angle.
17. Install the toothed belt as described in Chapter 7.
Assembling the Tension Mechanism
Removing
18. Remove the toothed belt as described in Chapter 7.
19. Turn off a bolt of fastening and remove assembly of the mechanism of a tension from the engine.
Installation
20. Install the tensioner on the engine, making sure that the protrusion on its support plate is in the hole in the oil pump casing. Install the mounting bolt.
Using a hex wrench, turn the mechanism lever clockwise to the stop, then securely tighten the mounting bolt.
21. Install the toothed belt as described in Chapter 7.
Intermediate pulleys
Removing
22. Remove the toothed belt as described in Chapter 7.
23. Turn off bolts of fastening and remove intermediate pulleys from the engine. If necessary, unfasten the pulley bracket and remove it from the cylinder block.
Installation
24. Install the pulley bracket on the cylinder block and tighten the fastening bolts with a tightening torque regulated specifications.
25. Install the intermediate pulleys and tighten the fastening bolts with a tightening torque regulated specifications.
26. Install the toothed belt as described in Chapter 7.
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