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 Posted: Thu May 29, 2014 5:43 pm |
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Joined: May 28, 2014
Posts: 27
Trade Rating: 0
Location: Ipswich
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Me again lol... 
As the title really,
Any ideas what it is? It drives fine but makes a hell of a whine...sounds like a supercharger tbh lol.
youtu.be/c0r0v4M8x28
I'm arguing with myself over what it is...
Turbo? But it boosts well and doesn't smoke at all.
Alternator? But it slows with the engine, whereas the whine 'hangs' for a bit.
PAS pump? Same as alternator, it should slow quickly.
AC pump? Don't think so as I turn the AC on half way through the vid and it makes no difference.
Car has done 85k miles, but been sitting for months due to a starting fault.
So what do you reckon the whine is?
Tom
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Posted: Fri May 30, 2014 3:01 am |
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Joined: Feb 07, 2010
Posts: 2721
Trade Rating: +6
Location: UK
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Check your crank pulley. Common fault.
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Posted: Fri May 30, 2014 3:39 am |
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Joined: May 28, 2014
Posts: 27
Trade Rating: 0
Location: Ipswich
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Hmm, I'm aware of the crank pulley fault (this is my 7th 2.0 HDi lol) but not heard one whine before, they usually knock? I was under the impression that the 206 got a solid pulley to stop it failing as well?
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Posted: Fri May 30, 2014 4:21 am |
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Joined: Jan 29, 2011
Posts: 6526
Trade Rating: +10
Location: Westhoughton, Lancashire
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Gearbox input shaft bearing?
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Posted: Fri May 30, 2014 4:26 am |
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Joined: May 28, 2014
Posts: 27
Trade Rating: 0
Location: Ipswich
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| macca1411 wrote: |
| Gearbox input shaft bearing? |
I really hope not! 
How could I tell?
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Posted: Fri May 30, 2014 6:11 am |
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Joined: Feb 07, 2010
Posts: 2721
Trade Rating: +6
Location: UK
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Doesn't sound like shaft bearing, more like a belt. Check your aux belt and timing belt.
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Posted: Fri May 30, 2014 6:14 am |
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Joined: Feb 07, 2010
Posts: 2721
Trade Rating: +6
Location: UK
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How old is your car, going by the seats, no offence, yours would still be running the old design pulley, if original.
Remove the aux belt and see if the noise is still there. Only a 10 min job.
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Posted: Fri May 30, 2014 7:06 am |
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Joined: May 28, 2014
Posts: 27
Trade Rating: 0
Location: Ipswich
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I now don't think its anything gearbox related as it's the same with the clutch engaged or disengaged.
I can't think how anything aux related would still be spinning once the revs drop though? As the whine hangs a few seconds after. Is it alright to run these with the aux belt off? I've only had pre-plex HDis so far and wasn't sure if running without the alternator would affect the BSI at all?
Car is a 52 plate, phase 1 I believe with frosted headlights. I didn't realise the older ones still used the rubberised pulley so thanks for the info. How can it whine though?
This is what happened to the one on my current HDi btw...it was only 18 months old! Don't buy pattern pulleys lol.
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Posted: Sat May 31, 2014 6:35 am |
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Joined: May 28, 2014
Posts: 27
Trade Rating: 0
Location: Ipswich
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Well, it turns out I do have the newer style pulley, possibly original judging by the amount of rust on it lol.
I've also found the problem - its the alternator. Unlike previous HDi's I've had, the 206 alternator uses a one way clutch, meaning it over-runs slightly after the revs drop. But now I don't know if this is just normal alternator noise that would usually be masked by engine noise, or if there's actually a fault?
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Posted: Sat May 31, 2014 9:27 am |
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Joined: Nov 27, 2010
Posts: 11520
Trade Rating: +10
Location: What's it to you? ? ?
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| 206Tom wrote: |
| Unlike previous HDi's I've had, the 206 alternator uses a one way clutch, meaning it over-runs slightly after the revs drop. But now I don't know if this is just normal alternator noise that would usually be masked by engine noise, or if there's actually a fault? |
I've had these alternator clutch pulley's fail on some VW applications I've worked on.
Special tools needed to remove the pulley from the alternator due to the clutch, the tools are pretty cheap to buy.
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| Toyota C-HR GR Sport 2.0 Hybrid with JBL & Alcantara packs. | |
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Posted: Sat May 31, 2014 4:43 pm |
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Joined: Oct 01, 2011
Posts: 168
Trade Rating: 0
Location: norfolk
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Hello tom
yes the can go faulty on all vehicles fitted with a alternator clutch pully
I recommend exhaust unlimited for parts
probity ebay for pully extractor tool( machine mart dosnt keep it on the shelf but can order them in)
if needed if fitted immediately cvs will help, its a 2minute job
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Posted: Sun Jun 01, 2014 5:02 am |
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Joined: May 28, 2014
Posts: 27
Trade Rating: 0
Location: Ipswich
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Thanks guys, I thought it was a bit too loud to be normal lol.
It's looking like the 206 may not be staying with me now anyway, its got more faults than are worth fixing for me unfortunately, and the alternator pulley is another to add to the list lol.
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