[s-cars] IS my garret 3071 dying?

[djdawson2 at aol.com]

Chris,
I would suggest that you remove the cold side housing of the turbo, and inspect the edges were the compressor wheel may have made contact with the inlet.  If the bearing is failing, you will see evidence of metal to metal contact.  If you discover any signs of contact, you should quit using it, as the bearing will eventually unload, dumping ball bearings down into the oil return line and into your oil pan.
 
That is the very first thing I would look into.
Good luck,
Dave
 
-----Original Message-----
From: chris chambers <fastscirocco_2000 at yahoo.com>
To: Scar <s-car-list at audifans.com>
Sent: Sat, 27 May 2006 14:31:19 -0700 (PDT)
Subject: [s-cars] IS my garret 3071 dying?


Gentz,

Boost is low, I'd say it's about stock levels.
Wife's 93 S4 with MTM chipset (stock bar sensor) has more
power and pulls better than mine now.

Yes I have checked my boost hoses and conducted a boost test
with my custom boost tester.

With no fitting on the turbo for boost to feed the WGFVI have
tapped off the boost line that feeds the ECU.

Background, after installing the 3071 I discovered the boost/vacuum
lines at the back of the enging that feed the ECU were restricting
boost. These lines were replaced and everything was good.

Thinking that potentially there is an obstruction in the IM that
feeds the lines on teh back of the engine I looked for boost elsewhere.
I have Samco hoses so the turbo outlet hose was made in two pieces, I
removed the 3/4" Copper coupler and replaced it with a copper T fitting
and attached a barb fitting to this T fitting. Then I fed the WGFV and
ECU boost from this point, it made no difference.

After countless frustrating hours trying to figure out what stupid
thing
I was overlooking I pulled the MAF/Turbo hose off, the inside is
covered
with oil and if I grask the impeller shaft I can wiggle it.

So gentz, until I can get a professional to look at this, is there
anything I am overlooking or is this turbo failing?


Chris
not happy or in evah boost

Make April 15th just another day http://www.fairtax.org


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