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Squirl Mincer

buckets

By buckets,
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buckets Community Regular

buckets

Posted
Posted

hey guys

for the past couple of months my car has been making an immensly loud squeel on start up, only when cold and i wasnt too worried about it at the start but on a drive home last night it happened while i was driving so im concrned now.

i managed to get the bonnet up and someone else to start the car and from the looks of it none of the two belts are slipping, and the screeching noise sounds like its comming from the opposite end to those belts.

a bearing maybe?

any ideas on how to fix this would be beautiful!

Callum

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buckets Community Regular

buckets

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CRC or silicon spray all the bearings etc that the belts run on. I usually do it every now and again even tho its never happened to me

ive siliconned sprayed all the bearings i could get to, so ill post back if it did anything or not.

it just doesnt seem though like its comming from the front of the engine, it sounds like

sh*t i hope this isnt serious

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MrStabby Grand Master

MrStabby

Posted
Posted

Bearings will make noise all the time if they're stuffed. More likely to be belts - have you checked the tension? You can probably tighten them up again if they're loose, but if it were me i'd just replace them if they dont look perfect.

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tiberis Enthusiast

tiberis

Posted
Posted

From personal experience, i would be looking at the alternator belt in particular.

the screech on start would be the alternator kicking in and trying to charge the battery as quick as it can due to the charge lost when cranking. then usually the alternator starts spinning/ the regulator tames it down and the screech stops.

there should be the correct tensions and where to check deflection in the engine manual that's floating around.

oddly enough though, i currently have the opposite problem. at high rpm (4500+) i get a screeching and i have no idea what it is.

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R34 -_- Community Regular

R34 -_-

Posted
Posted (edited)

Just for the record, a lot of of old jap cars/vans like the nissan vanette etc squeal on start up and idle so it cant be too serious, just something small that bosses cant be f**ked paying for to be replaced lol.

I only mentioned lubing the bearings as iv heard mine starting to squeal while idling, probably got dust etc in them and the lube they would have had (if serviced properly) has dried up which would cause a squeal until they start moving.

Try all the small things first so you can eliminate the problem before spending money on unneeded repairs/parts, ring a local mechanic and ask him what the common causes are of squealing and you should get a few answers pretty quickly

Edited by R34 -_-
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ARTZ Grand Master

ARTZ

Posted
Posted (edited)
From personal experience, i would be looking at the alternator belt in particular.

the screech on start would be the alternator kicking in and trying to charge the battery as quick as it can due to the charge lost when cranking. then usually the alternator starts spinning/ the regulator tames it down and the screech stops.

there should be the correct tensions and where to check deflection in the engine manual that's floating around.

oddly enough though, i currently have the opposite problem. at high rpm (4500+) i get a screeching and i have no idea what it is.

Haha.....I got both problems...fixed the second one,

wasnt to worried about the first,

though it is annoying when everybody keeps telling me to tighten my fanbelt...

Edited by Arthur T3
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buckets Community Regular

buckets

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alright cheers

my belts all seem to be fine and intact, no wear on them, i also got a rag and wiped them down to eliminate any possible fluids on them

the only thing is it squiels while its cold, once the engine is at opetating temperature, if i turn the car off and on again no squeal occurs

i thought it may be a possible belt thats too tight? considering its happening when its cold and not when it hots, the old saying heat = expansion? could this be possible also?

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  • 3 weeks later...
Nigel Nichols Explorer

Nigel Nichols

Posted
Posted
had a look at the engine yesterday, noticed some major slackage on the alternator belt, so tighten that up and bam. no squeel!

my only question is, how do i stop it from becoming loose again?

Once you have tightened the tensioner bolt just tighten the lock block bolt. Just make it hand tight. No need to over do it with a 25 foot torsion bar. The bottom main pivot bolt only needs to be reasonably tight.

The belt squealed when the engine was cold until the belt warmed a bit and gripped better.

Nigel

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