Technical Changing the alternator belt

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Technical Changing the alternator belt

JamesPtg

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Hello people,

My Alternator belt just snap :/

I would like to change it by me own.. is it difficult ?
Did you know any tutorial ?

If i go to a garage what should be the price ?

Thank you
 
Hi James,

- lose the tensioner (relief the pressure from the spring)
- slip the new belt in place
- release the spring that loads the tensioner
- you're done ...

Easyer if you get 3 or 4 hands ;-)

BRs, Bernie

If someone here helpes You fix -orbetter, understand- your issue, hit the thanks icon @ bottom right corner, it's free and makes us feel helpy ;-)
 
Thank you Bernievarian,

Did you have any picture/schema of the tensioner ?

Can do all of that from the top or I have to go under the car also ?
 
Thank you Bernievarian,

Did you have any picture/schema of the tensioner ?

Can do all of that from the top or I have to go under the car also ?

Hi,
You don't say what engine you have, but normally you can do it from above and through the wheel arch (take plastic liner out).
This guide to a 1.2 cambelt change shows the fan belt, it has to come off before the cam belt). Obvisoly you do not have to do all the sensor and cam locking stuff relted to the cam belt.
https://www.fiatforum.com/grande-punto-guides/237966-1-2-8v-evo-2-engine-cam-belt-replacement.html.
If you have a different engine search the guides for the same engine, possibly in a different model.

Robert G8RPI.
 
I asked about this and got some.help from berne with regards to a pic. If u look through my posts it should be in there. It's a diagram from an actual elearn source
 
Just to add to what's been said above (as for once I happen to have my Haynes manual to hand) -

The following is true for the 1.2 & 1.4 petrol models, not sure about the other engines.

If you have air con then there will be a tensioner - this can be rotated against the spring pressure using a 13mm spanner or socket to slacken the belt enabling it to be removed. Once the new belt is on it will maintain the correct tension automatically.

For models without air con there is no tensioner. Slacken the mounting bolts on the alternator to remove the belt. On refitting, move the alternator back to its previous position to take the slack from the belt. Manually check the tension using this method: applying firm thumb pressure there should be approx. 5 mm of free movement at the mid-point between the pulleys. Adjust the position of the alternator if this isn't the case.

If i go to a garage what should be the price ?

I had one changed on a Mk1 Punto at my local independent garage not so long ago for less than £40 - probably 1/2 hour labour + parts. A friend had the same job done on a Toyota for a similar price (different garage). If in doubt phone round for a few quotes.
 
Thank all of you for your answers !

I don't know which engine it's is because he as been changed but here a picture if it's helps.


I will check those link's (thank you)

If I ask a garage to do it how long this should take them ? 1 hours max ?
 
Yep, petrol for sure, no AC for sure, and quite a mess... for sure ;-) The tensioner is the alternator...

Procedure: (thanks to PuntoR60SX)

- losen the alternator
- slip the belt in
- tighten the alternator to remove belt' slack


BRs, Bernie

If someone here helped You fix -or better, understand- your issue, hit the thanks icon @ bottom right corner, it's free and makes us feel helpy ;-)
 
Last edited:
I have to drive a little bit (~2km) to put my car into my garage and then process.

Could I drive without this belt ? I think she is not linked to the cooling system ?

Thank's again for your's useful post (y)
 
Hi James,

water pump's usually driven by the cambelt; but that all dépends on what engine is actually installed...

BRs, Bernie

If someone here helped You fix -or better, understand- your issue, hit the thanks icon @ bottom right corner, it's free and makes us feel helpy ;-)
 
Hi James,

water pump's usually driven by the cambelt; but that all dépends on what engine is actually installed...

BRs, Bernie

If someone here helped You fix -or better, understand- your issue, hit the thanks icon @ bottom right corner, it's free and makes us feel helpy ;-)
Just thought I would put up pictures of the other variation which has a tesioner on it.

The first two pictures are from the top of the engine and the last one is from underneath the car. I was trying to loosen the tension to just test it nut I wasn't sure which way to go and did not want to break anything. If anyone can tell me which way you turn would be great.

20170901_140720.jpeg20170901_140709.jpeg20170901_162334.jpeg
 
The tensioner is pushing the belt so its 'dead' path is kept tight, you'll have to release the spring pressure to be able to remove the old belt and to put the new one in place, should be obvious in which way when you see the all thing...

Brs, Bernie
 
Hey guys apologies to always be that guy asking about brands etc but I have heard choosing wrong brand of alternator belt can cause squealing etc. Just wondering what people have used/ recommend. Currently in euro car parts they have Continental brand and a DayCo belt but I heard ( via ChrisFix) they a notorious for squeaking. Should I just buy OEM? Or is there something even better out there.
 
Hey guys apologies to always be that guy asking about brands etc but I have heard choosing wrong brand of alternator belt can cause squealing etc. Just wondering what people have used/ recommend. Currently in euro car parts they have Continental brand and a DayCo belt but I heard ( via ChrisFix) they a notorious for squeaking. Should I just buy OEM? Or is there something even better out there.

Gates is my preferred brand.


Robert G8RPI.
 
Gates AND Continental are both well renowned manufacturers. You will easily forget the few €/£ more but never the squeaky belt ...

BRs, Bernie

If someone here helped You fix -or better, understand- your issue, hit the thanks icon @ bottom right corner, it's free and makes us feel helpy ;-)
 
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