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Drive belt tensioner replacement

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Hi all,

The drive belt tensioner on my Polo 9N needs replacing and I'm hoping someone can tell me how tough a job this is? Also what might have caused it to fail and what else, if anything, needs to be checked or replaced?

Background: changed the alternator drive belt a couple of months ago after it went. Only done a few hunded miles since then and the new belt has started to split (it's effectively now a 5pk belt instead of 6pk) and the tensioner pulley is sitting at a funny angle with the belt nearly slipped off.

I tried to reposition the belt, levering the tensioner forward to do this a few times, also it did not spring back fully, then I noticed a fracture running right across the tensioner casting. Not sure what's happened here, whether it was cracked already and that caused the new belt to sit funny or if I could have broken it with brute force say if it was seized.

ECP have a replacement at £40. I might be willing to give it a go but I'm guessing it's a royal pain to swap out with restricted access. Has anyone here attempted this, what does it involve?

I have searched but without luck so any pointers gratefully received.

Spec.: Polo 2003 9N, ASY, 1.9 SDI, A/C.

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  • Guest jumbojim
    Guest jumbojim

    The broken pulley. The hidden bolt head. Needs a 13mm socket with 75mm extension. Old pulley removed. Don't push the bolt through or you might lose it. Replacement pulley from AP Motors o

Bump with photo.

sncfns.jpg

For some reason I can't post a pic of the new part - "You are not allowed to use that image extension on this community".

Anyway, it takes a bolt from the reverse side and I can't immediately see how to acheive that. Do the alternator and/or A/C compressor need to be removed to provide access? My Google fooey is failing me on this one.

Edited by jumbojim

I've dropped a clanger and put the reply on the above link, so if you have a look at the link, you should see what I have put in there.

Regards.

oprpu.jpg

The broken pulley.

20mnhi.jpg

The hidden bolt head.

14l4gnm.jpg

Needs a 13mm socket with 75mm extension.

28vqgau.jpg

Old pulley removed. Don't push the bolt through or you might lose it.

1055p3m.jpg

Replacement pulley from AP Motors on Amazon (£11.75 inc P&P !!)

23t4ayc.jpg

It was a squeeze to fit the new pulley. Engine block needed teasing half an inch to one side. :smile:

2dvlou9.jpg

New pulley fitted. Pin still in place makes it easy to fit the belt.

2uihw9k.jpg

New belt fitted. Pin removed. Job done. 8)

Hoping this belt lasts longer than the previous one!

Edited by jumbojim

Nice job! Hope it works out for you.

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