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TDI Maintenance Archives on TDI Maintenance related items.

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Old November 22nd, 2000, 15:36   #1
Thomas Baumgart
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Join Date: Nov 2000
Location: Wehrheim, Hessen, Germany
Default Garrett VNT-14 pictures

Upon recommendation of Valois and others I post this message again under its own topic.

Just in case somebody is interested: I have recently bought a used Garrett VNT15 turbo and found the NGV actuating gear to be stuck. I then performed a thorough cleaning job and took lots of pictures. Though this turbo won't be used in a car (at least not yet), the pictures might give a good point of what to expect when cleaning a turbo. Have a look at http://www.technologie-entwicklung.d...t15-turbo.html .


Regards,
Thomas


Audi A3 TDI


P.S. For cleaning of the internal parts I used:
Old toothbrush (dry) for removing loose soot (do this outside, very dirty).
Water and household cleaner with toothbrush for turbine housing and NGV components.
Trichlorethane (or similar) and cloth wrapped around match or wooden stick for cleaning compressor and turbine wheels.
Don't lubricate any of the NGV parts, the lubricant will coke and seize all the moving components!
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Old November 22nd, 2000, 16:43   #2
SkyPup
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Default Re: Garrett VNT-14 pictures

Excellent post there, Thomas! Thank you very much. I printed out your great photography to save this in my files, I appreciate it alot.
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Old November 22nd, 2000, 17:26   #3
SkyPup
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Default Re: Garrett VNT-14 pictures

Thomas, our friend here, Mickey, recently lost his VNT15 43mm compressor wheel while operating at high altitudes, check out his pictures and story here:

http://forums.tdiclub.com/NonCGI/For...ML/000005.html

He is planning on upgrading to the 49mm wheel with the new one!
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Old November 23rd, 2000, 04:59   #4
chopchop
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Join Date: Apr 2000
Location: Here (Calgary) & There (Blighty)
Default Re: Garrett VNT-14 pictures

Thanks, Thomas, for sharing all this with us. Superb pictures, very informative indeed.

Hoffentlich wird das Gerat jedoch nie als Ersatzteil im Audi A3 benoetigt werden!

Gruesse, Richard
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Old November 23rd, 2000, 07:31   #5
PWM
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Join Date: May 2000
Location: Western Siberia (Finland)
Default Re: Garrett VNT-14 pictures

Hi !!

The VNT-tweak was to shorten the rod from vacuum-actuator..
How about loosing the limiting screw - Ie. letting those vanes close more !?!

It seems to me that this would spool up the turbine at even lower RPMs..

(Sould this be in the performance-forum )
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Old November 23rd, 2000, 12:32   #6
SkyPup
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Default Re: Garrett VNT-14 pictures

I think this should be acrchived so we don't lose these pics, GoFaster, can you handle that?
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