[urq] Rattle at higher rpm

[Brandon Rogers]

I don't think the moaning (or groaning) ever ends with Audi owners

Brandon

-----Original Message-----
From: urq-bounces at audifans.com [mailto:urq-bounces at audifans.com] On
Behalf Of SpotatAshleys
Sent: Wednesday, September 19, 2007 12:50 PM
To: fdekat; urq at audifans.com
Subject: Re: [urq] Rattle at higher rpm


Oh yes!. It was the alternator pulley rubbing on the intercooler end
tank under high load. Reason? The pully size altered through urq
production and consequently so did the belt size. My car had wrong belt
size which when it wore it meant adjustment was needed and this moved it
closer to the i/c. When accelerating it would touch the I/c. Fixed with
right size belt Also had another rattle at one point and it was a loose
heatshield cause by oversight when rebuilding.

As an aside, years ago I used to look after my folks car (still do
actually). Anyway they had a squeak that I couldn't find. In the end I
gace up and bought them an in car CD player for Christmas - the moans
about the squeak ceased at that point.

hth

Keith

'87 WR (with no squeaks or rattles, just a burble)
----- Original Message -----
From: "fdekat" <fdekat at sentex.net>
To: <urq at audifans.com>
Sent: Monday, September 17, 2007 7:52 PM
Subject: Re: [urq] Rattle at higher rpm


> > Message: 3
> > Date: Mon, 17 Sep 2007 10:38:57 -0600
> > From: "Brandon Rogers" <brogers at terrix.com>
> > Subject: [urq] Rattle at higher rpm
> > To: "'Urq list'" <urq at audifans.com>
> > Message-ID: <007201c7f949$44e0f1f0$2c01a8c0 at BCROGERS>
> > Content-Type: text/plain; charset="us-ascii"
> >
> > So this is not a fair question (an I kinda know the answer - in that

> > I know I just need to get under there and listen with somebody 
> > helping me on the throttle) but I'm going to throw it out there 
> > anyway...
> >
> > For years I've had this annoying, fairly loud rattle - like a loose 
> > bolt or something, when I'm driving and the motor revs to about 
> > 4000+ and I shift.  This rattle has survived a motor swap and a cat 
> > swap.  It's definitely metal on metal and goes away as revs fall.  
> > And it does not happen until the engine is warm/hot.  I'm thinking I

> > need to get the engine hot, put the car up on ramps and carefull 
> > crawl under there (a little bit) and have somebody rev the motor.  
> > Any other thoughts??? Obvious places to look for something loose?  
> > Maybe an odd bolt on the tranny?  Any BTDT?
> >
> > TIA-
> >
> > Brandon
> > '84 ur
>
> I too had a similar noise/problem (but temperature didn't matter). The
noise
> was really annoying, and really made the car feel 'wrong' when 
> revving.
>
> I couldn't find the problem until I pulled the head off to fix a blown
head
> gasket.
>
> Seems as thought the starter heat shield had partially rotted away, 
> and as reves rose, it must have vibrated more. When I had the head 
> off, I
repaired
> the heat shield, and after the motor seemd WAY smoother when revved 
> up. I never realized that was what was causing the problem, until I 
> tried out
the
> car after the repairs. A 'bonus fix' as it were!
>
> Could be some slack in the bolts the hold the downpipe to the 
> exhaust/cat too, I suppose...
>
> =Frank=
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