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jprior2912
 Post subject: Loose fan belt!!!!
PostPosted: Thu Jul 17, 2014 6:03 pm 
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Hi everyone

So it seems to be that my fan belt keeps coming loose. I'm assuming it would be the alternator maybe moving? I don't really know where to go because all the bolts are tight and the sleeve in the top bracket is firm..

It's gotten sorta progressively worse, could go a few days of driving with it tight, then a day, half a day. Now it's just done 20km's and needs adjusting again or it squeals! argh

please help me

Thanks
James

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kiwiinwgtn
 Post subject: Re: Loose fan belt!!!!
PostPosted: Thu Jul 17, 2014 6:14 pm 
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Is the 9/16 nut that holds adjusting arm to the engine front plate tight

The alternator is held on with three bolts and one nut. Are they all there.


Last edited by kiwiinwgtn on Thu Jul 17, 2014 6:21 pm, edited 1 time in total.

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Scoop
 Post subject: Re: Loose fan belt!!!!
PostPosted: Thu Jul 17, 2014 6:16 pm 
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You havent got worn pulleys have you? Belt going in the V to much.

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jprior2912
 Post subject: Re: Loose fan belt!!!!
PostPosted: Thu Jul 17, 2014 6:22 pm 
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kiwiinwgtn wrote:
Is the 9/16 nut that holds adjusting arm to the engine front plate

The alternator is held on with three bolts and one nut. Are they all there.


Yep they're all there, and they're all new bolts/nuts

And yes the 9/16 nut is done up nice and tight
Scoop wrote:
You havent got worn pulleys have you? Belt going in the V to much.


Well I'd hope not, the engine is new, the water pump pulley is new and it's a new alternator

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Kennomini
 Post subject: Re: Loose fan belt!!!!
PostPosted: Thu Jul 17, 2014 6:50 pm 
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Is it actually going loose or is it just squealing a lot? Try rubbing some soap on it to stop the squeal.

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jprior2912
 Post subject: Re: Loose fan belt!!!!
PostPosted: Thu Jul 17, 2014 6:53 pm 
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Kennomini wrote:
Is it actually going loose or is it just squealing a lot? Try rubbing some soap on it to stop the squeal.


It's definitely going loose. You can feel quite a difference in the tension

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carter
 Post subject: Re: Loose fan belt!!!!
PostPosted: Thu Jul 17, 2014 6:56 pm 
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Are you running out of adjustment? Maybe a dodgy belt and is stretching???? Just a thought.....

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jprior2912
 Post subject: Re: Loose fan belt!!!!
PostPosted: Thu Jul 17, 2014 6:58 pm 
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carter wrote:
Are you running out of adjustment? Maybe a dodgy belt and is stretching???? Just a thought.....


I originally thought it may just be stretching (as everything is new) but the belt has 600km on it now and still doing it. It still has lots of adjustment left on it though

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Mackie
 Post subject: Re: Loose fan belt!!!!
PostPosted: Thu Jul 17, 2014 7:04 pm 
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Mayb mark the bolts and adjustment with a marker and see if they move ??

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jprior2912
 Post subject: Re: Loose fan belt!!!!
PostPosted: Thu Jul 17, 2014 7:09 pm 
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Mackie wrote:
Mayb mark the bolts and adjustment with a marker and see if they move ??


Genius idea! I'm going to try that

Cheers

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kiwiinwgtn
 Post subject: Re: Loose fan belt!!!!
PostPosted: Thu Jul 17, 2014 7:17 pm 
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Do the pulleys have the same section to match the belt.

Can you compare them to the old ones.
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jprior2912
 Post subject: Re: Loose fan belt!!!!
PostPosted: Thu Jul 17, 2014 7:20 pm 
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kiwiinwgtn wrote:
Do the pulleys have the same section to match the belt.

Can you compare them to the old ones.


Yeah they seem to. I'm using the larger water pump pulley with the 70amp alternator. Side by side they look the same :\

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kiwiinwgtn
 Post subject: Re: Loose fan belt!!!!
PostPosted: Thu Jul 17, 2014 7:30 pm 
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The only thing left is the belt. Is it a good quality one from a good manufacturer
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jprior2912
 Post subject: Re: Loose fan belt!!!!
PostPosted: Thu Jul 17, 2014 7:44 pm 
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kiwiinwgtn wrote:
The only thing left is the belt. Is it a good quality one from a good manufacturer


http://minispares.com/product/Classic/E ... lassic/Fan Belt.aspx

This is the belt I bought for it. To be totally honest I'm not sure if they're good or not

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kiwiinwgtn
 Post subject: Re: Loose fan belt!!!!
PostPosted: Thu Jul 17, 2014 7:59 pm 
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I would buy a belt from Oz. Take a pulley with you and the belt with you for the length.

I am not a fan of cogged belts. Find a vee one.

Fingers crossed it sorts your problem.
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