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Atoz Changing Alternator Belt

19K views 3 replies 4 participants last post by  DTC_Magnet 
#1 ·
Hi all
This is my first post on this forum so please be gentle.
We have a 2001 Atoz and I want to do the simple task of changing the alternator belt.

Not so simple, there are three belts.

I know what they are for, Alternator, air con and power steering. And I know which is which.

What I can't figure out is how to loosen the power steering belt (the bottom one) to be able to get the alternator belt off.

Do I have to get under the car for that one and do it from below?

Any assistance anyone can offer will be great as the squeeling belt is starting to annoy everyone now.

Thanks
Andy
 
#3 ·
QUOTE (ANDKAT @ Nov 17 2009, 02:46 PM) index.php?act=findpost&pid=279029
Hi all
This is my first post on this forum so please be gentle.
We have a 2001 Atoz and I want to do the simple task of changing the alternator belt.

Not so simple, there are three belts.

I know what they are for, Alternator, air con and power steering. And I know which is which.

What I can't figure out is how to loosen the power steering belt (the bottom one) to be able to get the alternator belt off.

Do I have to get under the car for that one and do it from below?

Any assistance anyone can offer will be great as the squeeling belt is starting to annoy everyone now.

Thanks
Andy

We just spray the belt with 'belt dressing spray' -available from most tradesman type hardware stores. Run the engine then lightly spray onto the driven side of the belts. leaves a slightly tacky deposit on the belt and pulleys cutting out slip and squeeks
 
#4 · (Edited)
Hello Andy!

Late reply, I know, so this is mainly to help others.

We have a 2001 Atoz and I want to do the simple task of changing the alternator belt.

Not so simple, there are three belts.
Yes, there are three external Belts if the Atoz is fitted with Air Conditioning (AC):

(1) Main Serpentine Ribbed Belt

On my daughter's 1998 Atoz, the Hyundai Part Number is 25212-02500.

This is flat on one side, and ribbed on the other. This Belt is driven by the double Crank Pulley at the bottom and is fitted first on the engine side (inner) of the double Pulley on the Crank. The outer side of the Crank Pulley is for the Air Conditioning (AC) Belt (see below).

The Serpentine Belt goes to the rear and up to drive the Alternator at the back (where the Belt's tension is adjusted), and also to the Water Pump Pulley at the top.

The Water Pump Pulley is a Double Pulley that transfers drive to the Power Assisted Steering (PAS) Pump at the top front.

To adjust this Belt, you need to slacken off two 12mm Bolts, one that acts as the hinge for the Alternator's Carrier Frame, and the other that nips the Adjuster Unit. Once they are slack, you just need to tighten the Adjuster Unit via a 12mm Long Adjustment Bolt that faces to the front so that a long extension on a ratchet will easily reach this.

When the Belt is suitably tight, then re-tighten the above two 12mm Bolts again (one to nip the Adjuster, the other to secure the AC Carrier Unit. Then re-check the Belt is now adjusted correctly.

(2) The Power Assisted Steering (PAS) Pump Belt

On my daughter's 1998 Atoz, the Hyundai Part Number is 57231-02000. There is also a later Hyundai Part Number, 57231-02010 and either can be used.

This is a short Toothed Belt, and is usually the cause of most belt squeal issues on the Atoz. I'd bet that if the car has a squeal, this Belt is the prime candidate. It's a real PITA to be honest.

This is a very short belt, and is adjusted by the PAS Pump's fitting.

There's a 12mm Bolt that needs to be slackened, and that sits just behind the PAS Pulley, and you may need to turn the Pulley to line up the large slot in the Pulley so that it allows a 12mm Socket to reach the 12mm Bolt through the Pulley.

The same 12mm Bolt can also be loosened via a 12mm Open Ended Spanner slid in between the PAS Pulley and PAS Pump from above and/or just from towards the front.

Then slacken the main 12mm Bolt at the bottom of the PAS Pump. The PAS Pump should now rotate on the axis of the lower 12mm Bolt.

Then use a lever to apply tension to the PAS Pump to rotate it on the axis of the lower 12mm Bolt and, when suitably tensioned, nip the 12mm Bolt that sits behind the PAS Pulley. Then re-tighten the lower 12mm Bolt, and re-check.

This Belt is very short, and it's one that seems to want to squeal the most.

So much so, that on my daughter's Atoz, I just removed the Belt and she now uses her Atoz without PAS, and much prefers it. She no longer has any Belt Squeal, which was important when she is away at college and too far away for me to adjust the damned thing! Plus, the Steering is not too heavy because it's such a small car.

(3) The Air Conditioning (AC) Belt

On my daughter's 1998 Atoz, the Hyundai Part Number is 97713-02000.

This is right at the bottom, at the front, and is driven from the outer channel of the Crank Pulley, and straight ahead to the Air Conditioning (AC) Compressor or "Pump".

This is a V-Belt, and is adjusted via the AC Compressor's fitting.

I have not changed this one recently, so from memory, it's similar to the PAS Belt, but the Bolts are more robust because the AC Pump is a physically much larger and heavier unit than the PAS Pump. So, look for one or two Bolts to slacken (probably 12mm), and then the AC Pump rotates to adjust the AC Belt's tension.

This Belt tends not to squeal,

I know what they are for, Alternator, air con and power steering. And I know which is which.

What I can't figure out is how to loosen the power steering belt (the bottom one) to be able to get the alternator belt off.
I suspect you may mean the AC Belt, that's at the bottom front, the PAS Belt is at the top front, at least on UK Atoz.

Do I have to get under the car for that one and do it from below?
It would be wise to plan to get at the Belts from both above and below. The PAS Belt and Main Serpentine Belt can be reached wholly from the top, but the AC Belt may need access from both the top and from below, depending on how stubborn the nuts/bolts are.

The first job I do when adjusting or fitting Atoz Belts is to remove the Inlet Plumbing from the Engine. This is the Plastic Boxes and Tubes that sit just behind the Front Panel, and link to the Air Filter that is fitted inside of the Engine Cover at the top of the Engine. They come off easily, so it's a 5 minute task to remove them.

Get that lot removed, and the Dog can then see the Rabbit!

Any assistance anyone can offer will be great as the squealing belt is starting to annoy everyone now.
I hope the above helps, if not for Andy as this is a late Post, but for anyone else who has to adjust or replace Atoz Belts.

Cheers,
Keith
 
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