[urq] 2b relocate Alternator 'Siren' Noise?

[Brandon Rogers]

You have to, IIRC, as the bracket is designed to use them -  I think the Urq
alternator has a wider mounting area.

Brandon

-----Original Message-----
From: urq-bounces at audifans.com [mailto:urq-bounces at audifans.com] On Behalf
Of Martin Pajak
Sent: Friday, September 04, 2009 1:55 PM
To: Andrée-Anne Bourgeois
Cc: urq at audifans.com; 'fdekat'
Subject: Re: [urq] 2b relocate Alternator 'Siren' Noise?


So when using a bracket it might be necessary to use a 4kq alternator as
well.

Frank, you should have plenty of those to try out, if not I sure have one?

Cheers
Martin


> Andrée-Anne Bourgeois
> One more observation : 4kq alternator uses a normal fan, ie not 
> solid-faced and it is placed in the incoming airflow, while the urQ's 
> in behind a solid
> cover.
>
> How do I know that ? During a winter ride in Brady's 4kq, the front of 
> the car was literally packed with snow. I used my hand to remove it 
> from the lower grille, just to have a finger caught into that da*n fan 
> about an inch further. I still remember the pain, many years later.
>
> Different fan and different positioning, that surely explain the 
> different sounds.
>
> LAR
>
> -----Message d'origine-----
>
>
> But when I even lightly covered the air intakes on the back of the 
> alternator, there was a very noticable change in the sound.
>
> So a clue in the direction, but no solution. Can't really run the 
> alternator without the cooling airflow, and doesn't explain why the 
> noise seems to be 'alternator location dependant'.
>
> 4K alternator is in a similar position, but no big noises from it..??
>
> =Frank=
>
>
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