Hi,

My alternator belt on my Bravo 1.9 JTD recently snapped and I am now attempting to fit a new one.

I have taken off the wheel, and the plastic cover (I am guessing to stop mud etc.) and I can now see where the belt is meant to go.

Even though I can see the position I have no idea how the belt should be fitted, what one is the tensioner.

If anyone has any information or images that might help me I would be very grateful.

Many thanks

Lee

Hi Lee

Sorry no one has been able to help yet, Ive never seen this engine but I will do my best to help.

The belt will be tensioned with either an automatic tensioner wheel or by the old fasioned way of adjusting the alternator spacing away from the block. Looking at the manual its the second.



You can see here number 1 is an tension adjuste, If you wind it all the way in it should give you enough room to change the belt. You may have to remove it but I doubt it. If you have to take the power steering belt of it works in the same way. I presume the air-con will be the same aswell.


You dont want to over tighten the belts because you can damage the alternator/steering pump bearings and shorten the life of your belt.

Re: Alternator Belt/Tensioner

Following on from this previous post.

*this engine has an auto tensioner thingy*

I changed that alternator belt and it was a rather simple job even by my standards.

Well now (eight months later) it has snapped again and once again I have changed it. Since the change two days ago i have now gained a clonking/rattle type noise from somewhere down in the alternator belt direction.

I had a look at the belt while the car was idling and it seemed to be in the right place etc. but the tensioner seemed to be a bit juddery (but it was dark and its hard to say if i was seeing what I thought I was seeing).

This noise only occurs when idling and not when the accelerator is pressed down.

Any ideas

thanks

Lee

If its definately to do with alternator it will either be the tensioner or the pulley. But Im not sure if you can just change the pulley on the alternator of if you need a whole new unit.

Rigby said:

If its definately to do with alternator it will either be the tensioner or the pulley. But Im not sure if you can just change the pulley on the alternator of if you need a whole new unit.

Click to expand...

The alternator itself is only about year old (3,000 miles) so i hope its not that.

Is there any simple way to find out?

Thanks

Lee

lee_gti said:

The alternator itself is only about year old (3,000 miles) so i hope its not that.

Is there any simple way to find out?

Thanks

Lee

Click to expand...

The only way I can think of is to just feel the pulley for play, like you would a wheel bearing.

Would you recommend not driving the car? As it is currently at work (2 miles from home) and I would prefer to have it at home to look at it.

Lee

lee_gti said:

Would you recommend not driving the car? As it is currently at work (2 miles from home) and I would prefer to have it at home to look at it.

Lee

Click to expand...

Well as I dont fully know the severity of the rattle I cant be sure. But id say if the roads were clear that you could drive it back at a steady pace. But not to drive it after that. Although if possible id play it safe and get a tow home. May be worth also checking the belt is tensioned the right amount and tensioner or pulley isnt about to fall off.

Hi mate,

It will either be the tensioner itself, or the bottom pulley. Both of these are common failures on the JTD engine.

You should be fine to get it home if you just take it easy and are prepared for the fact that the belt could jump off, and thus the alternator will stop charging.

Once home, remove the belt, and then remove the 13mm bolt in the middle of the tensioner. Remove the tensioner from the car. look at the bottom part of the tensioner (not the black plastic wheel) there is a rubber gasket in-between the two halves of it (hopefully you know what im talking about when you have it infront of you) There should be no sideways movement or play in this. Also the tensioner should have stiff lateral resistance.

If then tensioner seems ok, then look at the bottom pulley. Its a dampened pulley meaning that there is rubber in between the inner and outer edges of the pulley. This rubber deteriorates over time, and when it splits of cracks, the pulley wobbeles slightly and makes a metalic rattling sound at idle.

If its the pulley, there is an updated part for it, which requires LONGER bolts. So when you order the pulley, make sure you order the bolts as well.

All in it will be around £70 for the pulley and £30 for the tensioner. Hopefully its the tensioner

Obv check all the other idle wheels (black plastic wheels) the alternator pulley and the Air conditioning compressor pulley for any abnormal play.

Hope that helps,
Alan

As above, I would put money on it either being the Auto Tensioner or the Crank Pulley (the big one with the rubber damper).

After having a good look over the weekend it appears to be the tensioner. The belt has also started to squeak where it is slipping and not rotating the alternator.

The tensioner appears to be worn and now at a slight angle so i will be replacing it next week (unless i find out that the pulley is also causing problems but i dont know this atm as the car is still in one piece).

If some one has any examples of the manual etc that would be relevant that would be very helpful.

thanks for the help so far.

This is the daigram from the parts catalogue for the 2001 Bravo JTD.

Top left of the diagram with belt #1 is for cars without A/C. The other setup with belt #9 is for cars with A/C.
.

Adrian Bravo

Hi, newbie here, looking for help !

I have a 1995 Fiat Ducato 10 1.9 TD van and I note you say ...

"The belt will be tensioned with either an automatic tensioner wheel or by the old fasioned way of adjusting the alternator spacing away from the block"

I have the old style with no auto tensioner but I cannot find the correct belt, mine flew off and the auto shops have a job finding out the correct part I need.

Do you (or any other members) know the belt I need ?

Thanks in advance for any help.

Regards

Chris

Thameshead said:

Adrian Bravo

Hi, newbie here, looking for help !

I have a 1995 Fiat Ducato 10 1.9 TD van and I note you say ...

"The belt will be tensioned with either an automatic tensioner wheel or by the old fasioned way of adjusting the alternator spacing away from the block"

I have the old style with no auto tensioner but I cannot find the correct belt, mine flew off and the auto shops have a job finding out the correct part I need.

Do you (or any other members) know the belt I need ?

Thanks in advance for any help.

Regards

Chris

Click to expand...

Hi Chris Welcome to the forum, Propably the best thing to do is pop down to your local Fiat dealer with your VIN get the part number from them, they should be able to order the part in next day if you think its too expencive you can ring around a few more motorfactors with that part number.

Davren said:

This is the daigram from the parts catalogue for the 2001 Bravo JTD.

Top left of the diagram with belt #1 is for cars without A/C. The other setup with belt #9 is for cars with A/C.
.

Click to expand...

Would this diagram cover a 54 doblo 1.9 jtd with a/c .
My poor boys belt came off and I need him back on the road. Luckily I have a knight in shinning armour in the form of one of my eldest sons mates who is giving up his time to get his mates mums pride and joy up and running.
If these diagrams are not the same as I need would you by ANY chance be able to show me the right one and any advice in getting the belt on will be great fully received. Hopefully Big thank you in advance.