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#1627520 - 03/12/2018 18:02 Cause belt breakage
carmine Offline
Discoverer

Registered: 24/05/2018
Posts: 45
Loc: born in Italy I live in German...
Hello.
I ask for information to those who had experience with distribution belt failures.
I wanted to know,
breakage of the timing belt is more common, caused by: wear / time / km etc.
Or is it caused more frequently by the service belt, than by breaking itself it coils on the main belt causing it to break?
Thank you.

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#1627526 - 03/12/2018 19:13 Re: Cause belt breakage [Re: carmine]
GrahamL Offline
Forum is my job

Registered: 17/12/2005
Posts: 3582
Loc: Pothole City
The 20vt cambelt is pretty strong, it's more common for the aux belt to fail and the remains to get wound around the crank pulley and into the cambelt causing it to fail.

1 or 2 guys did make pulley guards to stop the aux belt failure interfering with the cambelt.

I left my cambelt for 10 years but it had only done about 30K miles. It still looked fine but had stretched to the point of being a little loose, so it really did need changed by that time.

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#1627531 - 03/12/2018 20:18 Re: Cause belt breakage [Re: carmine]
barnacle Offline
Club Member 18 - Minister without Portfolio
Forum Demigod

Registered: 17/12/2005
Posts: 31948
Loc: Hemel in the Hempstead
For 16v owners, however, the cam belt is a lot more fragile... it's quite happy to break on its own, without troubling the aux belts!
_________________________

Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!

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#1627534 - 03/12/2018 20:52 Re: Cause belt breakage [Re: carmine]
carmine Offline
Discoverer

Registered: 24/05/2018
Posts: 45
Loc: born in Italy I live in German...
OK understood.
I had seen somewhere, the pulley to protect the cambelt, any of you know where you can buy?
Another question, to change the belts of services and need to move the engine?
Do I have to change everything?
Thank you very much.

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#1627584 - 04/12/2018 21:01 Re: Cause belt breakage [Re: carmine]
carmine Offline
Discoverer

Registered: 24/05/2018
Posts: 45
Loc: born in Italy I live in German...
Does anyone know where to find a guard pulley?

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#1627585 - 04/12/2018 21:09 Re: Cause belt breakage [Re: carmine]
GrahamL Offline
Forum is my job

Registered: 17/12/2005
Posts: 3582
Loc: Pothole City

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#1627588 - 04/12/2018 21:17 Re: Cause belt breakage [Re: carmine]
Submariner Offline
Enjoying the ride

Registered: 20/12/2005
Posts: 1181
Loc: Kent
I read that on fitting the main belt it has 150% of the strength required and at end of the belt change duration/mileage/cycles it is still at circa 100%. One Coupe mechanic told me he has never seen the main belt go on it's own on the 20v turbo; it is as we know the aux belt/tensioners etc that usually take out the main. I have taken the main belt up to 8+ years and circa 40k+ miles (wouldn't recommend it though) but do the aux belts and tensioners every 3-4 years.

JBT http://www.midlandscarservicing.co.uk/ had a pulley manufactured with a guard I seem to remember.

Traffic light Grand Prix's and banging the car off the limiter are a no-no for the Coupe and it's belts IMO especially so if running big power increases.

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#1627607 - 05/12/2018 17:48 Re: Cause belt breakage [Re: carmine]
Countrycruising Offline
Club Rep Europe, member 914
I AM a Coop

Registered: 12/09/2006
Posts: 14560
Loc: FCSS 01684 593187
I have known the pulley guards not to work and still allow an aux belt to jump and be caught by the cam belt, one last year and another big bhp build in Germany so I've copied Flea's design, new batch being made from stainless.

click to enlarge
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#1627624 - 05/12/2018 22:33 Re: Cause belt breakage [Re: carmine]
carmine Offline
Discoverer

Registered: 24/05/2018
Posts: 45
Loc: born in Italy I live in German...
thank you all for the answers.

Mr. countrycruising
I would be very interested in the coverage shown in photos, bhp and a user who lives in germany?
can you please give me some other information?
I'd like to have a protection like the one in the picture?
thank you.

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#1627631 - 06/12/2018 10:11 Re: Cause belt breakage [Re: carmine]
Countrycruising Offline
Club Rep Europe, member 914
I AM a Coop

Registered: 12/09/2006
Posts: 14560
Loc: FCSS 01684 593187
Originally Posted By carmine
thank you all for the answers.

Mr. countrycruising
I would be very interested in the coverage shown in photos, bhp and a user who lives in germany?
can you please give me some other information?
I'd like to have a protection like the one in the picture?
thank you.


I'll send you a pm after I have received the guards, we can chat further then.
_________________________

www.facebook.com/fiatcoupes

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#1627634 - 06/12/2018 10:16 Re: Cause belt breakage [Re: carmine]
jonnyboy54321 Offline
Club member 1630
On a journey

Registered: 22/08/2017
Posts: 196
Loc: Surrey
Joe - you have pm from me ref these

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#1627640 - 06/12/2018 12:14 Re: Cause belt breakage [Re: carmine]
carmine Offline
Discoverer

Registered: 24/05/2018
Posts: 45
Loc: born in Italy I live in German...
Thank you,
I will wait willingly.

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