Table of contents: Checking the drivebelt condition 🠇 Drivebeit (models without air…🠇 Drivebeit (models with air…🠇
1. On all models, only one auxiliary drivebelt is fitted. The belt drives the alternator and (where fitted) the power steering pump or air conditioning compressor.
Checking the drivebelt condition
2. Apply the handbrake, then jack up the front of the car and support it on axle stands (see "Jacking and vehicle support"). Remove the right-hand front roadwheel and wheel arch liner. Where necessary, undo the retaining nut, and free the coolant hoses from the retaining clip to improve access to the crankshaft sprocket bolt.
3. Using a suitable socket and extension bar fitted to the crankshaft sprocket bolt, rotate the crankshaft so that the entire length of the drivebelt can be examined. Examine the drivebelt for cracks, splitting, fraying, or other damage. Check also for signs of glazing (shiny patches) and for separation of the belt plies. Renew the belt if worn or damaged.
4. If the condition of the belt is satisfactory, check the drivebelt tension as described below under the relevant sub-heading.
Drivebeit (models without air conditioning) - removal, refitting and tensioning
Note: On 16-valve engines, the procedures are the same with and without air conditioning and are as described for models with air conditioning in paragraphs 17 to 29.
Removal
5. If not already done, carry out the operations described in paragraph 2.
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6. Disconnect the battery negative terminal (refer to "Disconnecting the battery").
7. Slacken both the alternator upper and lower mounting bolts, and the bolt securing the adjuster strap to the mounting bracket.
8. Back off the adjuster bolt to relieve the tension in the drivebelt, then slip the drivebelt from the pulleys (see illustrations).
16.8a. Loosen the alternator mounting bolts, then slacken the adjuster bolt (arrowed)...
16.8b — and slip the drivebelt off its pulleys
Refitting
9. Fit the belt around the pulleys, ensuring that the belt is of the correct type if it is being renewed, and take up the slack in the belt by tightening the adjuster bolt.
10. Tension the drivebelt as described in the following paragraphs.
Tensioning
11. If not already done, carry out the operations described in paragraph 2.
12. Correct tensioning of the drivebelt will ensure that it has a long life. Beware, however, of overtightening, as this can cause wear in the alternator bearings.
13. The belt should be tensioned so that, under firm thumb pressure, there is approximately 5.0 mm of free movement at the mid-point between the pulleys, on the longest belt run.
14. To adjust, with the upper mounting bolt just holding the alternator firm, and the lower mounting bolt loosened, turn the adjuster bolt until the correct tension is achieved. Rotate the crankshaft through two complete turns, then recheck the tension. When the tension is correct, securely tighten both the alternator mounting bolts and, where necessary, the bolt securing the adjuster strap to its mounting bracket.
15. Reconnect the battery negative terminal.
16. Clip the coolant hoses in position and secure them with the retaining nut (where removed). Refit the wheel arch liner and roadwheel, and lower the vehicle to the ground.
Drivebeit (models with air conditioning) - removal, refitting and tensioning
Removal
17. If not already done, carry out the operations described in paragraph 2.
18. Disconnect the battery negative terminal (refer to "Disconnecting the battery").
19. Slacken the two bolts securing the tensioner pulley assembly to the engine, and the lower alternator mounting bolt.
20. Rotate the adjuster bolt to move the tensioner pulley away from the drivebelt, until there is sufficient slack for the drivebelt to be removed from the pulleys.
Refitting
21. Fit the belt around the pulleys, ensuring that the belt is of the correct type if it is being renewed, and take up the slack in the belt by tightening the adjuster bolt.
22. Tension the drivebelt as described in the following paragraphs.
Tensioning
23. If not already done, carry out the operations described in paragraph 2.
24. Correct tensioning of the drivebelt will ensure that it has a long life. Beware, however, of overtightening, as this can cause wear in the alternator bearings.
25. The belt should be tensioned so that, under firm thumb pressure, there is approximately 5.0 mm of free movement at the mid-point between the pulleys, on the longest belt run.
26. To adjust the tension, with the two tensioner pulley assembly retaining bolts and the lower alternator mounting bolt slackened, rotate the adjuster bolt until the correct tension is achieved. Once the belt is correctly tensioned, rotate the crankshaft through two complete turns, and recheck the tension.
27. When the belt is correctly tensioned, securely tighten the tensioner pulley assembly retaining bolts, and the lower alternator mounting bolt.
28. Reconnect the battery negative terminal.
29. Clip the coolant hoses back in position, and secure with the retaining nut (where removed). Refit the wheel arch liner and roadwheel, and lower the vehicle to the ground.