[s-cars] Turbo....anyone have a loaner or one for cheap?

[djdawson2 at aol.com]

 Jim,
This is the sort of thing I'm talking about.  His suggestions aren't bad, but that isn't a logical starting point.  With the previously mentioned vicegrips, you can determine if the turbo is bad in about 1 minute.  If you clamp that line, you will immediately enable the turbo to develop about 15psi with no possibility of engine management interference.  You will either get boost or you won't... period.  If you do not get boost, either you turbo or your wastegate is shot.

This is your absolutely shortest and fastest path to determining the problem.

Dave

 

 

-----Original Message-----
From: Peter Golledge <petergolledge at gmail.com>
To: Jim Fleischer <jim at almgt.com>
Cc: s-car-list <s-car-list at audifans.com>
Sent: Fri, Sep 7, 2012 11:43 am
Subject: Re: [s-cars] Turbo....anyone have a loaner or one for cheap?


Start with a boost pressure gauge... teed into the line that feeds the 
ECU, that will tell you the boost level your are getting.

You can access the cold side of the turbo easy enough to check for 
damage/play.

Start with those two things... there is also infant mortality it might 
be that one of the recently replaced components is bad/intermittent 
bad.  I'd start with the above though.

On 9/7/2012 11:25 AM, Jim Fleischer wrote:
> Gentlemen,
>
> I am increasingly realizing that my problems don't lie within the usual 
suspects......everything I have replaced thus far are items that would fail soon 
anyway since I'm at around 140K miles, such as fuel pump, bleeder valve, etc.  I 
have seen a gradual decline in performance within the last month, to the point 
that I don't even hear the turbo spooling up at all, and I am struggling to get 
up to speed on the highway ramps.....literally feels like a normally aspirated 
engine now, lugging around a very heavy car!  So, seeing as the turbo used to at 
least "scream" (literally) for the last 90K miles (since I bought the car) and 
now doesn't even whimper or slightly whistle, I think that is my next plan of 
attack.  A few questions....
>
> 1. Anyway to "test" the turbo in my driveway without pulling it out......I 
doubt it, but thought I'd ask.
>
> 2. Anyone have a stock AAN turbo collecting dust somewhere that they are 
willing to let go cheap, or willing to lend to me so I can at least see if this 
is my issue, then I can either source a decent used or rebuild mine?  I am 
unfortunately not having a second vehicle to drive while I figure this out, and 
need to drive this baby everyday to work.  I am vigorously searching for a 
second beater vehicle, but have not come across the right deal yet.
>
> 3. If it is indeed the turbo, am I damaging the engine at all by continuing to 
drive it?  I don't want to screw things up more just due to my need for 
transportation.
>
> Despite the recent difficulties, I still love the car......just want her back 
running well.
>
> Thanks all....and best regards,
>
> Jim Fleischer
> '95 urS6 avant, short on breath
>
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