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):
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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.
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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.
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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