Drive belt

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RoccoRhys
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Drive belt

Post by RoccoRhys » Mon Mar 18, 2019 6:15 pm

Is the drive/altornator belt easy to re-place?
Mk2 scirocco gt2, no p.a.s no ac.
Is it as simple as loosening the alternator and slipping it on?

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unknownmale
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Re: Drive belt

Post by unknownmale » Mon Mar 18, 2019 6:22 pm

Yeah, one of the simplest jobs you can do.

1. Loosen the allen bolt which holds the alternator in (Not usually necessary tbh).
2. loosen the 13mm bolt at the top of the bracket.
3. Then turn the 17mm castle like nut (Held captive by the 13mm) to slacken the tension on the belt.
4. Whip the belt off, put the new one on, tighten the belt up (I tend to tighten it so I can twist it 90 degrees and no more)
5. Tighten the 13mm and the allen bolt.

If you over tighten the belt you'll prematurely wear the bearings in the alternator and the water pump, too loose and it could slip at high revs...Have a feel of how tight the belt currently is if you're unsure.


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mark1gls
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Re: Drive belt

Post by mark1gls » Mon Mar 18, 2019 8:17 pm

950x10 belt is the size you want.

https://www.eurocarparts.com/ecp/c/Volk ... b16&000108

I find you need to re-tension the new belt after a 100 miles or so as it stretches.


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RoccoRhys
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Re: Drive belt

Post by RoccoRhys » Mon Mar 18, 2019 8:25 pm

Thank you guys! Thats this weeks job!
My first job ever in the engine bay!

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mark1gls
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Re: Drive belt

Post by mark1gls » Mon Mar 18, 2019 9:07 pm

To check the tension is right use just your index finger and 1/2 between the alternator and lower crank pully you should be able to press/move the belt 10mm, you should not need to press really hard to move the belt.

Have a feel how the old one feels and go from there.

Might be worth getting a Haynes manual as all the info etc is in there and if you want to attempt more servicing etc but we are always here as well to help.

The red Mk2 Scirocco manual is the best one to get.

Like this.
This one is a bit tatty and with posted I think it’s over priced, they do appear on eBay etc every now and then so keep an eye open.

https://www.ebay.co.uk/itm/VW-Scirocco- ... Swmo1cWwmh


Mk1 78 Scirocco GLS 1.6 FR, weekend toy.
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DannyH
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Re: Drive belt

Post by DannyH » Tue Mar 19, 2019 1:17 am



Danny

Eagle1
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Re: Drive belt

Post by Eagle1 » Tue Mar 19, 2019 9:17 am




RoccoRhys
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Re: Drive belt

Post by RoccoRhys » Wed Mar 20, 2019 1:09 pm

Sorted thanks guys! One last question, bit of a 'wizzing' sound is this normal on a new belt or have i tightened it to much? Can twist 90° tho

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mark1gls
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Re: Drive belt

Post by mark1gls » Wed Mar 20, 2019 1:45 pm

Might be to tight, try loosening it a touch and see if it goes.
If it's to lose and you start the car turn on headlights/full beam, fan blowers full, heated rear screen and rev the car it will squeal.

Gives you an idea. :good:


Mk1 78 Scirocco GLS 1.6 FR, weekend toy.
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Kdc169
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Re: Drive belt

Post by Kdc169 » Thu Mar 21, 2019 6:06 pm

Like mark says trial and error,twist works, but I find depends on ambient temp. Give a go then make adjustments,belt will last few years so may aswell take 5mins on it



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james butler
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Re: Drive belt

Post by james butler » Sat Mar 23, 2019 12:03 am

also buy a decent belt like gates or continental
cheap belts just dont seem to last as long


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