renault scenic dci alternator belt

Honest John Back Room » Technical matters
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Sun 11 Dec 2005 16:31
renault scenic dci alternator belt - zephyr6boy
the belt /pulley area has a very noisy vibration on tick over. disappears when engine speed increased. a new belt was fitted prior to my recent purchase. (allegedly). the noise goes when lots of power sources are turned on. ie lights, main beam, fog lights , air con etc. it comes back when they are turned off. this suggests a tensioner problem. how do you tighten the belt up or adjust the tension ?
cheers. mark.
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Sun 11 Dec 2005 17:39
renault scenic dci alternator belt - elekie&a/c doctor
This vibration/flapping of the belt is caused not by the tensioner but by the alternator pulley.It is a special pulley with a friction clutch built into it.The system slips & causes this problem.Unfortunately I do not think it cannot be bought seperately from renault-they will only sell the complete alternator.However if it is a Bosch unit then the pulley may be able to sourced on its own.Another possibility is to ditch the special pulley & replace it with a normal type,provided the diameter & groove alignment is correct.BTW this is a fairly common fitting on a lot of diesel engines in VAG & M/benz models.
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Thu 12 Jan 2006 19:00
renault scenic dci alternator belt - zephyr6boy
2nd hand alternator fitted . problem solved. Thank you
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