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Discussion Starter #1
Hi all.

How do you visually check for wear on your timing belt? I have just re-leased the top part of my belt cover to have a look, but not sure exactly what i am looking for.The belt is shiny black smooth with no sighn of any cracks.Only thing i noticed was a kind of inpression of the teeth from the pully's which i guess is normal due to the tention of the belt.The reason i ask is that about a year ago i had the tentioner done under warranty and asked for the belt to be done at the same time and that i would pay the extra, i was told that the belt was fine and did not need doing.I explained that as i had not had the car long i wanted it done. On picking up the car i was told that they had replaced the belt but also did this under warranity.Having used this dealer since i have become more warey of them to a point that i will not be using them again and now cant help wondering if they actually changed the belt or not.
 

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It is very difficult to tell a belts condition by looking at it. The tensioners are the main problem on the TS anyway, they fail and take the belt out.. If in doubt get the whole lot changed...
 

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I'm forming the impression that all this talk of failing cam belts on Alfas is down to their fitment of the most shoddy short lived tensioners and idlers of any ever invented. Opel, when developing their first belt-driven overhead cam claimed they wore out 2 engines on one belt!
The original equipment tensioners want changing early, with the belt of course, now advised at 36,000. You have the 2-litre which has balancer shafts, also belt driven but by a different belt. This needs changing along with its tensioners for the reason that, even if it's failure isn't in itself disasterous for the engine internals, it's proximity to the cambelt makes damage to the latter possible. Then there's the auxiliary belt, and you guessed it - its tensioners/idlers.
Knowing nothing whatever about your cars age, mileage or service history make it difficult to advise which of these might need attention. I'd take the lot to pieces and check the tensioners by spinning them, feeling them and listening to them, change any that were sloppy or rough or noisy or made of plastic then fit new belts and drive on. I'd be listening to the engine thereafter for increase in noise at the timing end. Having said that, if I wasn't confident in being able to spot impending disaster by noisy bearings, I'd bite the bullet and replace the lot making a note of the mileage, then probably change again at makers intervals thereafter. If you don't do work yourself, go to a specialist, not necessarily a main agent (there are some recommendations here) and ask that they keep the old parts and show you them afterwards. As I mentioned on a similar thread recently - they are YOUR property after all! It gives some confidence what's actually been done.
 

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All a visual check will tell you is that the cambelt is still there.

If you have not got a list of the parts used last year I'd be inclined to change the lot - cambelt, balance belt and all of the tensioners. Worth changing the variator at the same time too - another £100 or so on top.

Paul.
 

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Interesting reading the above posts, may have this wrong, is the variator problem caused by lack of lubrication? Or, as Wrenched says about other components, not fit for purpose?
 

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Tell you when I next forget to check the level. Already poured dirty old oil into it from the wrong bottle! That should be a test for it.
 

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Well sorted, Wrenched, this stuff has made me a bit paranoid over Alfas. The wax had gone hard in the earpieces of my MV stethoscope,now I'm keeping it in the boot!!
 

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To replace a tensioner would involve removing the belt in the first place making it redundant. Putting a used belt back on is a big no-no regardless of its condition. If they replaced the tensioner then putting a new belt on should be simply routine.
 

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Discussion Starter #9
Thanks for your comments. The belt dose look ok and have just had the aux belt and tensioner replaced also in last service think i am being a bit paranoid as have recently heard lots of nasty things happening.
 
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