Megane problem

May 09, 2005 6 Replies

First off I'm no mechanic...:(



Had a 97R Megane (1.6 RXE) about 3 months ago. Two weeks ago it started making a loud vibrating, whining noise from the belts area, usually when cold and at low revs. Took it to a garage who replaced the tensioner pulley and a couple of belts, said it was common problem and that this would sort it - it didn't. The garage seem baffled, started making guesses as to the problem - mentioned alternator, water pump or timing belt.



Anyway, although the noises aren't as bad now, they are still there. Anyone have any ideas? If it helps there is no record of the cam belt being changed, and its done 95k miles (Yes, I know). Am I likely to do any great damage driving it? I'm a bit reluctant to change every damn part until I find out whats knackered!



PO



You are kidding right?

They changed the tensioner and re-used the old belt?

Let me put it to you this way. If the belt snaps, the timing between valves and pistons is lost. This is expensive, as the valves come down as the pistons come up and 99% of the time the valves lose the battle. This necessitates large amounts of time and labour of rebuilding the head, as dependant on engine speed most of the 16 valves will have been damaged. There may also be a knock-on effect of crankshaft damage which is even more expensive. Then when this all fixed, you need to pay to fit a new cambelt/tensioner anyway. Cambelt/tensioner swap will cost around 200 quid. Engine rebuild will cost £1000+.

Don't scrimp on this. Get the belt and tensioner changed *today*.

Hellraiser..........>

Whoops my bad...

I meant they fitted *new* pulley and belts, can still read the text on the belts...

NOT the cam/timing belt though (I assume they are one and same)

PO

Which belts? If memory serves, there should be two - one driving the alternator, and the other will be under a plastic cover on the lefthand side of the engine - this will be the cambelt/timing belt.

Hellraiser...........>

Hmm. Must be alternator then, as it/they are visible. It seems to have something to do with the aircon/PAS motor. Plastic cover has not been removed. All fluids at correct level.

Car has been looked after and has good history, seems odd that cam belt wasnt done at 60k - I dont know for sure that it wasnt changed, theres just no record of it.

PO

For archives sake, just to say that a cambelt (and pulleys) change cured the problem - noise was a knackered pulley.

Cheers

It's as well u got it done then - could have been expensive when it let go properly :)

Hellraiser.........>

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