Fitting Auxilary Belt tensioner - Alfa Romeo Forum
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(Post Link) post #1 of 21 Old 20-09-07 Thread Starter
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Fitting Auxilary Belt tensioner

Hello all,

I need to fit a new auxilary belt and tensioner to my 96 model 145 cloverleaf. My model does not have the aircon. I have ordered the part and should be here on saturday. I was hoping that someone could advise me of the best way of fitting it anf whether there are any special tools needed to fit the tensioner and belt. I had a look at the existing one on the car and i noticed that the plastic bit that surrounds the pulley on the tensioner has broken off and there need to fit the new part.

Any suggestions would greatly be appreciated.

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Re: Fitting Auxilary Belt tensioner

What engine are you running?
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Re: Fitting Auxilary Belt tensioner

its a 2.0 cloverleaf. sorry..forgot to mention that. lol
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Re: Fitting Auxilary Belt tensioner

Thats ok, if its the auxiliary belt then I dont believe you need a special tool (from the people I have spoken to) but if I am wrong then someone on here will definitely pipe up.
My best suggestion (having worked on mine) is to make sure you really do take your time and make sure everything is 100% secure and the belt is the correct tension before you start her up.
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(Post Link) post #5 of 21 Old 20-09-07 Thread Starter
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Re: Fitting Auxilary Belt tensioner

How do i know what the correct tension of the belt should be?
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Re: Fitting Auxilary Belt tensioner

Keep tightening until it stops sqeeking ...only joking, I tend to use judgement, just make sure its not so tight that you cant move it at all
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Re: Fitting Auxilary Belt tensioner

The tensioner automatically tensions to the correct level.

Its quite tricky to get the belt on but the tensioner is easy to fit..

Remove the old belt and tensioner, and screw the new one on so that the tensioner wheel is pointing upwards. Do up the bolt tight.
Then thread the belt around all the other pulleys. You then need a 15mm spanner to fit on the bolt on the wheel part. Use the spanner to lever the tensioner anticlockwise out of the way whilst you thread the belt over it. When it is over it release the tension and the job is done.
You may need to thread the spanner through the belt before levering the tensioner, otherwise the belt will be on the wrong side of the spanner.

The bolt on the tensioner that you use to lever is a left hand thread so it won't come undone.

I hope that all makes sense. Its far harder to do if your car has aircon.

Simon.

Giulietta 2.0JTDm (170), BMW 335i Cabrio
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Re: Fitting Auxilary Belt tensioner

That doesnt sound like my set up. Were all the 2.0 ts engines auto tensioned symon? I have the 32301 engine
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Re: Fitting Auxilary Belt tensioner

If its a Cloverleaf then it should be just like Symonh says (sorry ).
Tensioner is self adjusting so no need to worry about it, quick easy job. There are a couple of types of aux belts though, with and without a/c and also 6ribbed or 7 ribbed I think yours should be 7.
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Re: Fitting Auxilary Belt tensioner

I think Plastic topped engine cars use 6 ribbed belts, the earlier Aluminium top cars use the 7. The principal of fitting is the same though.

Car with aircon are a nightmare (or at least my 156 was. the belt is very long and doesn't want to stay where it should do unless you have about 6 hands.

AFAIK all 16V TS engines use automatic (Sprung) tensioners.

Simon.
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Re: Fitting Auxilary Belt tensioner

I've just found a pic of a tensioner and it looks nothing like mine, but I do have problems with having to re-tension mine every few weeks. Could I possibly have the wrong tensioner on there?
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Re: Fitting Auxilary Belt tensioner

This is what it should look like.

If you have aircon there is an additional fixed tensioner, which is basically a black pulley about 3" across with a bolt in the center.

Maybe they gave you the fixed one?

Last edited by symon; 24-02-09 at 15:32.
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Re: Fitting Auxilary Belt tensioner

Mine basically looks like the black pulley on its own but the bolt is offset.
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Re: Fitting Auxilary Belt tensioner

I did mine a couple on months ago, its a 96 leaf as well, looks exactly like the one Symonh pictures, made in Canada like the belt tensiosners that fail, squeaked like hell on start up.

Sounds like someone has fitted a different type of tensioner on there rafe, like an old cambelt tensioner of a Uno or similar. The thing is spring loaded so it takes the tension out continuously to save adjusting it every other week
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Re: Fitting Auxilary Belt tensioner

Some people are complete buggers , right i'll get the proper one ordered then.
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Re: Fitting Auxilary Belt tensioner

there are about £80 so a scrap yard may be in order. That's why mine was told to shut up and got a shot of spray grease up its ar5e. Job done.
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Re: Fitting Auxilary Belt tensioner

Only 30 quid at shop4parts.co.uk
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Re: Fitting Auxilary Belt tensioner

thanks for that, next time it squeaks, at that price it has to go
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Re: Fitting Auxilary Belt tensioner

Purple, have you got aircon? As the first 145 QV I had suffered a squeaky fixed tensioner. Which as mentioned before is only fitted to air-con cars.

Simon.
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Re: Fitting Auxilary Belt tensioner

yep, I have aircon, but I have the spring loaded tensioner fitted as in the pic above, is that correct? seems to be happy bar the now eradicated squeal.
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Re: Fitting Auxilary Belt tensioner

Yep on cars with a/c you have both tensioners. Seems to be sorted
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