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View Full Version : Found a nut inside my DV???



SFBob
07-31-2013, 11:46 AM
I am in the process of replacing my DV as it stopped working properly recently (I can push the valve by hand very easily). While taking the old one off, I noticed it was rattling.....

I found this inside!
http://i.imgur.com/Fymc58Fl.jpg

Closer look
http://i.imgur.com/wPFRtWIl.jpg

It looks similar to the nut on the compressor wheel of my stock K03, but I checked that it's still there. So the question is, where did this come from?

The DV failed last week and I only drove it like that for maybe 3 days (just to work and back, 15min drive).

melomandn
07-31-2013, 03:05 PM
I feel like it has to be from your turbo, theres literally no other logical explanation

But even if it was from your turbo your compressor wheel would have ate itself by now...

http://cdn.arwrath.com/1/112255.gif

ddillenger
07-31-2013, 03:27 PM
That IS the compressor nut. No doubt about it. Must have had a turbo failure earlier in life?

SFBob
07-31-2013, 03:54 PM
So that means that nut has been rattling around for a while, even before I owned the car.

As you ca see the nut is still there, blades aren't mangled (just dirty from oil varnished on, probably needs new seals), and there isn't any shaft play that I can feel.
http://i.imgur.com/9jd5VkJl.jpg
I believe the chip marks are just the oil varnish flaking off, not actual dents.

I guess this is an interesting look into the past of this car.....

andyrew
08-01-2013, 01:32 AM
Blades look good. Housing looks good, no signs of play... Turbo looks excessively good in fact despite what looks like oil in there. Maybe it was replaced after failure?

walky_talky20
08-01-2013, 06:09 AM
I bought my Audi with the same failure. The nut had fallen off the shaft. But instead of getting stuck in the DV like yours, it got jammed in the compressor. Tore that thing *up*. I attributed the nut falling off to the faulty diverter valve that was on the car. Constantly stalling the compressor and eventually working the nut loose...or something. That was the best I could come up with.

It's a good thing the nut stopped at the DV and didn't make it through to the inlet and kill another turbo.

Cgoon009
08-01-2013, 06:31 AM
Wow, that is some serious luck, glad you found when you did...



http://cdn.arwrath.com/1/112255.gif

Almost died laughing [>_<]

SFBob
08-01-2013, 12:48 PM
Wow, that is some serious luck, glad you found when you did...

http://cdn.arwrath.com/1/112255.gif

Almost died laughing [>_<]
I got a laugh at that too, I probably hat the same expression figuring out where the hell that nut came from[>_<]

And yea, some serious luck! That nut must have been rattling around there for years.


I bought my Audi with the same failure. The nut had fallen off the shaft. But instead of getting stuck in the DV like yours, it got jammed in the compressor. Tore that thing *up*. I attributed the nut falling off to the faulty diverter valve that was on the car. Constantly stalling the compressor and eventually working the nut loose...or something. That was the best I could come up with.

Until I got a decent look at the compressor, that was the only theory I came up with also. It's not common for that nut to just work itself off, maybe it wasn't put back on right during a rebuild.

Dodged a bullet with this, but it is also good that the turbo has been replaced in the past. It's not as old as I thought it was.