Thursday, August 19, 2010

renault dti cam belt failures

had a dti 1.9 laguna on a v plate,80k miles,full service history etc,etc.there is a common fault on these engines i found to my peril.the cam belt had been done by the main dealer at 71k,that was fine.

the problem lies with the alternator tensioner,it has a plastic pulley which fails!!you get no warning when it may go.mine collasped threw the belt which coils round the crank pulley,and in turn throws the cam belt off.nasty,cost about 1800 in the dealer,i repaired it my self and itstill cost 600 in parts please be careful when buying the dti engined renaults,if you get one replace the tensioner at least,cost 150 from dealer.

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