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| Note position of tensioning roller indicator -1-. Press toothed belt forcefully with thumb -arrow-. The indicator must move. |
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| Release tension on toothed belt. |
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| Turn crankshaft two turns in engine direction of rotation. |
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| Then check position of indicator. It must have returned to its original position. |
| If tensioning roller does not return to its initial position |
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| Renew tensioning roller. |
| If both tensioning rollers are OK |
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| Refit lower toothed belt guard. |
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| Refit crankshaft pulley. Observe the following: |
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| The belt pulley and the toothed belt pulley securing bolt must be renewed. |
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| When installing belt pulley, observe fixing arrangement to toothed belt pulley. |
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| Tightening procedure for new, oiled bolt: 90 Nm + 1/4 turn (90°) further. |
Note | When installing poly V-belt, ensure that belt seats correctly in pulleys. |
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| Install engine splash protection. |
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| Install lower part of toothed belt guard. |
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| Install air filter housing (engine code BCA) → Fig.. |
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