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Go Back   TDIClub Forums > TDI Model Specific Discussions Areas > VW MKV-A5 Golf/Jettas

VW MKV-A5 Golf/Jettas Discussions area for A5/MkV Jetta/Golf (2005/2006 PD and 2009 CR).

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Old February 11th, 2011, 15:35   #1
jdhunt0
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Default Alternator Pulley Removal Tips

Due to the suggestions from this site I decided to replace my alternator pulley to try and fix the problem of my tensioner bouncing ant the occasional squeal at startup. I ordered the pulley and also got the toll from metalnerd.


My problem is coming from the removal part. The center bolt is in there TIGHT. It is right hand thread isn't it? Am I going to have to pull the alternator and use an impact wrench?
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Old February 11th, 2011, 15:53   #2
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Although it may appear to be left-hand thread, it isn't... the pulley unscrews from the alternator shaft normally - although it might be corroded in place... (the belt moves the pulley in the tightening direction which adds to the hold they have on each other...)

MetalNerd does not recommend the use of impact tools for this, but some people have found it necessary on occasion...

Yuri
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Old February 11th, 2011, 15:58   #3
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I'll try again tomorrow. Thanks.
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Old February 11th, 2011, 16:06   #4
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Quote:
Originally Posted by jdhunt0 View Post
I'll try again tomorrow. Thanks.
I had the same problem when I did mine. Thought I was going to break something. So I took a cotton ball, soaked it in Kroil and stuffed it into the recess in the center of the pulley. After about an hour I put the wrench to the pulley again and it came off easily.

This thread
is helpful when thinking about which wrench to turn and in what direction.
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Old February 11th, 2011, 16:10   #5
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Quote:
Originally Posted by migbro View Post
I had the same problem when I did mine. Thought I was going to break something. So I took a cotton ball, soaked it in Kroil and stuffed it into the recess in the center of the pulley. After about an hour I put the wrench to the pulley again and it came off easily.

This thread
is helpful when thinking about which wrench to turn and in what direction.
THANK YOU!!!

I was holding the pulley and turning the shaft.
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Old February 11th, 2011, 16:17   #6
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Quote:
Originally Posted by jdhunt0 View Post
I was holding the pulley and turning the shaft.
That's why some people think it's left-hand thread when it isn't... You can hold the pulley and turn the shaft, but then you need to be aware of what direction you're turning...

Have fun... (?????)

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Old February 11th, 2011, 17:15   #7
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Be careful - those metalnerd tools are strong

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Old February 13th, 2011, 07:08   #8
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I got the pulley changed this morning. No change to the tensioner bouncing up and down.

Maybe I have avoided a future problem, but right now I feel like that was $90 well wasted. What next? How much "bounce" is normal?
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Old February 13th, 2011, 08:33   #9
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I checked my serp. belt tensioner while the engine was running/idle this morning. The tensioner was bouncing like it was shown in some video flying around here. Do I also have a failing alt. pulley? Should I start worrying or just wait untill it fails?

BTW, my alternator is Valeo (not Bosch) 140 amp. Any ideas if the pulleys are replaceable/available for these?
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Old February 13th, 2011, 15:27   #10
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I had my alternator pulley replaced whilst my golf was in the garage and whilst the chaps had the belt off i had them replace the alternator belt, this managed to completely fix the bouncing tensioner after the chap adjusted it accordingly and now the car runs sweeeet!

replace the pulley, replace the belt with it, adjust tension accordingly and take it from there

if the noise is still there, time to consider the condition of the alternator...
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Old February 13th, 2011, 17:52   #11
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I was not aware there was an adjustment.
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Old February 13th, 2011, 18:30   #12
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Ordered a belt.
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Old June 15th, 2011, 09:23   #13
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Today I've replaced the belt, pulley and serviced the alternator (rings, brushes). After all this was done and new belt installed the tensioner is still bouncing slightly.

Oh, and don't buy that overpriced POS Metalnerd tool! It's very high chance you'll need it only once. Pulley replacement without any other alternator service at a specialized shop is less than $10 so much cheaper plus no dirty hands. During that time you can smoke a cigarette or two.
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Old March 25th, 2018, 18:21   #14
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Thumbs up alternator replacement video

Complete alternator replacement is another way to go that can be faster and easier in the long run. That is what I typically do as a mechanic. Here is a video to help out too if you need it! ~shaun
https://youtu.be/-tTTL_VX018
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Old March 25th, 2018, 19:31   #15
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You spamming all the alternator threads you can find?
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