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In the Feb 2007 issue of Sports Car Market, Mike Sheehan's column address the issue on Cambelt change intervals. What I never really realized is that Ferrari never had an official time based policy until 2002. The net net on the article, changing your belts every five years is fine.

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I think the 5 years policy is a good rule to stick to, regardless of mileage.
 

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I just don't know why they don't put two belts (redundant system is what we call that in Portuguese, don't know if it makes sense in English). How hard would it be? How much more would it cost?? Not much, I'm sure!!

Then if one broke, the other would keep everything fine until you get to the mechanic, and we wouldn't have to be so paranoid about this.

Does that count as a comment?
 

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Boxer, if the project had considered an extra belt, there would be room for it. Of course, now that the car is produced it´s hard to change anything without screwing something else up.
 

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If two timing belts were together inside the front timing cover, if one were to break, because its inside and the engine still running and the other belt spinning, it would tangle itself around the good one and both belts would shred each other to bits.

There would have to be a belt at either end of the engine for two belt timing as well as a crank pulley. It would be an engineering nightmare because at the rear is where the flywheel is located…


~
 

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I am confused. I have always thought that the time between belt changes was two years irrespective of mileage.

Is it five?
 

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Discussion Starter #9
I am confused. I have always thought that the time between belt changes was two years irrespective of mileage.

Is it five?
Prior to 2002 the recommended cambelt change interval varied greatly by model. In 2002 Ferrari put in a policy of every 3 years if you wanted to qualify for the extended warantee coverage.

One of the 3 belt manufacturers, recommends that the belts be changed every 9 years, and the five year period is more of a compromise between the two. Net net, it is up to the owner.
 

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Broken Belts

I realize that a broken belt is a major disaster, but does anyone know of any documented cases of belts actually breaking? I know of one belt on an Acura NSX, but it's because a piece of debris got caught in the pulleys. -Steve
 

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In both cases, then, the belt didn't break because it was old or high mileage. Just as easily could have happened to a new belt? -Steve
 

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I rest my case. The Acura NSX forum has gone through the same thread. No one has ever seen a belt break from age or mileage. One guy freaked out when he read all the stuff about replacements every two years, so he finally did his belt. It was 12 years old and had over 100,000 miles. He said that he couldn't tell the difference between the new and the old belt with a magnifying glass. Yes, yes, I know they break without warning, but I think everybody is getting a little paranoid about the whole subject. (The NSX engine is an 8,000rpm, DOHC like a Ferrari). Five years is probably still on the safe side, and a reasonable compromise. -Steve
 

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I am not aware of any belt that has broken due to age or mileage.
Similar threads on other forums repeat this theme. Sadly, the religious belt service every 5 years is necessary just in case you unexpectedly have to sell the car.
 

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I agree. My Acura NSX belt had 3,000 miles and 4 years on it when I decided to sell the car. I changed the belt then because I knew no one would touch it otherwise. Fortunately, the belt is not expensive, and the job was pretty easy for me to do.

This whole thing reminds me of a funny joke. It goes something like this: Two old friends meet on a street in New York City. One of them is wearing a baseball cap with a toy moose mounted on it. The other guy says "Why are you wearing that stupid hat?' The man answered "because it keeps polar bears out of New York City." The first man said " There are no polar bears in New York City!" And the guy replies "See, it works!". So, you see, if you replace the timing belt every two years, it won't break. -Steve
 

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5years is what I intend doing and sounds like a good compromise
 

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I have just spoken to my service agent who is adamant that the interval is two years or 40,000 km. Interesting though is that the cost of the belt service on my 308 is cheaper than the belt service on my wife's 2004 Alfa Romeo 147 2.0 TS!
 
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