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Technical squeeling auxillary belt !!!!!!!

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Technical squeeling auxillary belt !!!!!!!

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chrisb100

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Jul 29, 2006
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Guys, had stirling service from my 06 cargo 1.9 multijet now pushing 3 years old only ever had one problem and its re occured now 3 times!!

My auxilary belt has started to squeal again at start up worse as usual when cold or wet.

have had 2 replacement belts and a new aux belt tensioner last about a year then it starts again.

Does anybody now of any proper cure for the squeeling belt as otherwise its back to fiat for 3rd time.

cheers
 
My problem too, again. Only when the car has been standing in the cold for a good few hours though, then the rattly squeak lasts for a few seconds and is gone. I am a bit fed up frankly because I have replaced the cambelt etc. and the car has never run better. It idles as sweetly as a car can.

Help/suggestions would certainly be appreciated. The mechanic said to leave it and see how it goes, and possibly the warmer weather might help. Like arthritis then :eek:
 
i have the same problem with my 1910jtd, fitted new aux belt and it was fine but decided to jetwash engine , big mistake! the only way i can stop it sqeeling now is to spray a bit of polish (pledge works well) it stops it instantley and no it doesn't cause belt to slip. however it only lasts for a few days and its costing me more money in polish than changing the belt again!
 
Looks like I'm not the only one then:D

will wait to see if it clears up after the damp weather is over but its now the 3rd time so just going to have to get it changed.

B****R

Think I'll get the local lads to do it can't be bothered with the hassle at fiat ( 20 miles away).
 
Try a little WD40 or similar. Do not spray too much on, and watch those fingers. There used to be a spray especially made to cure the problem but I have not seen it for years.
 
A drive belt that squeals only for the first few minutes after starting the car, often indicates a faulty battery.

Operating the starter motor on a cold engine and in cold weather can draw over 500 Amps from the battery (diesel engines over 700 Amps). Once the engine has started, the alternator will sense the drop and work overtime trying to recharge the battery. In doing so, the magnetic field in the alternator can increase to such an extent that it acts like a brake on the alternator pulley and the belt will slip. After a few minutes the battery will have recovered enough for the magnetic field to reduce and, therefore, for the squealing to stop.

This doesn't happen so much in warm weather because when the engine is warmer the starter motor needs less current to turn the engine and the battery (being a chemical reaction) is also more efficient when warmer. The mechanic who said "to leave it and see how it goes, and possibly the warmer weather might help" would be correct but that doesn't cure the problem.

I've come across numerous people that have kept on tightening the drive belt trying to stop it squealing without success. Fit a new battery with the correct CCA (Cold Cranking Amps) for the car and the squealing stops.

If the drive belt is set to the correct tension, next thing to do is get your battery tested under load. Don't continue to tighten the belt or eventualy the alternator, water pump, A/C compressor, PAS pump, belt tensioner, idler pulley etc. (if fitted) bearings will be damaged.

Dave.
 
I got a new battery at the last service. This is a rattly squeak: sounds mechanical. I'm hoping for a warm weather cure.
 
Davren said:
A drive belt that squeals only for the first few minutes after starting the car, often indicates a faulty battery.

Operating the starter motor on a cold engine and in cold weather can draw over 500 Amps from the battery (diesel engines over 700 Amps). Once the engine has started, the alternator will sense the drop and work overtime trying to recharge the battery. In doing so, the magnetic field in the alternator can increase to such an extent that it acts like a brake on the alternator pulley and the belt will slip. After a few minutes the battery will have recovered enough for the magnetic field to reduce and, therefore, for the squealing to stop.

This doesn't happen so much in warm weather because when the engine is warmer the starter motor needs less current to turn the engine and the battery (being a chemical reaction) is also more efficient when warmer. The mechanic who said "to leave it and see how it goes, and possibly the warmer weather might help" would be correct but that doesn't cure the problem.

I've come across numerous people that have kept on tightening the drive belt trying to stop it squealing without success. Fit a new battery with the correct CCA (Cold Cranking Amps) for the car and the squealing stops.

If the drive belt is set to the correct tension, next thing to do is get your battery tested under load. Don't continue to tighten the belt or eventualy the alternator, water pump, A/C compressor, PAS pump, belt tensioner, idler pulley etc. (if fitted) bearings will be damaged.

Dave.
Click to expand...

dave ,

many thanks sounds very plausable as I have noticed the van not starting with the same va voom as normal and i haven't been doing the same long journeys this month aswell it being cold battery nearly 3 years old now.

will get battery properly tested under load and see if any different, cheers.

thanks to everyone else too

dammed annoying sound like a bloody canary chirping down the road:D
 
Ulpian said:
I got a new battery at the last service. This is a rattly squeak: sounds mechanical. I'm hoping for a warm weather cure.
Click to expand...

If you have something rattling then the alternator working overtime theory wouldn't apply to you. A rattlling sound suggests that a pulley or bearing is loose or worn. That won't be cured by warm weather and needs further investigation before something breaks causing further, possibly expensive, damage.

Dave.
 
Kinda what I thought. I like this car a lot, but the detail engineering design is not good and much as I hate to say it my next car will probably not be a Fiat - much s I admire the marque :cry:.

In the old days they'd have said let me take a look; now they say leave it and see what happens.....
 
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if its rattling noise rather than squeeling then it can only be the aux pulley, the rubber inside breaks down then goes noisey. they are easy to swap but expensive, i paid £85 for a new pulley from main dealer, they simply bolt straight onto the crank pulley, you cant overtighten the belt because its on a pre-tensioned pulley.
 
well heres an update seeing as theres a few with probs.

took the family to centerparcs near penrith last week in all the snow etc van aux belt squeeling when cold as usual, gave it a good blast about 1hr 20mins from me up the M6 left it for 5 days parked up in the car park ( as you do at these places) went to it friday afternoon had frost on the inside of the roof:D
snow an ice outside. van started 1st time NO!!! SQUEELING BELT(y)

not had any trouble since so can only presume the good run up the motorway put a full charge back in the battery and dried the engine bay out well.

so for anyone else suffering may be a good blast for an hour might do wonders.:)
 
my doblo also has a squeeling belt will try giving the van a good long blast over the weekend like chrisb100 said and see if this does the trick. Will put up an post and let you all know if it works for me or not.
 
Didnt get a chance to go for a long run but had a good blast around the country lanes just to put a good charge in the battery as I only do 8 miles each way to work.

still need to get the glowplugs fixed that will help it to start better/quicker
 
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Yes, I think with these engines moisture and damp after a while in winter if not giving the engine a good run , just stop start, seems to get into the engine bay on the pulleys and belt and cause the dammed squeeling,add the constant drain on the battery with cold starting , heaters and lights and I think a good blast is the best cure not only for this but most engine issues.:)
 
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