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Drivbiwire VNT15/17 repair procedure Tools needed: T-20 Torx 10mm Box end wrench 17mm Box end wrench Steel Drift Heavy weight hammer High temperature (1700°F/ 930°C) or greater Pick Green Scotch-Brite Emery Cloth

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Remove VNT Actuator and the retaining circlip

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Soak it well!!!, patience you may need to wait overnight!

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Always replace oil line!

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DO NOT hit the ALUMINUM!!! Verify with every hit you are on the cast iron bearing housing!!!

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2 Oclock position With turbo laying on it’s side

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Most common area that jams the VNT rotating ring…

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One area of concern regarding soot

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Use pick and get all the carbon and rust out of corners…

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DO NOT scratch or sand this area. Use Green Scotch-Brite to get carbon off face.

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Clean the VNT face of all soot residues using Green Scotch-Brite…

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Raised spacer, maintains clearance and acts as a contact point between VNT control ring and Turbine housing

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Note clearance, or lack there of…excessive soot build up is a bad thing

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Carb and Choke cleaner plus Scotch-Brite

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Pick all the rust from the bearing housing groove

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Alignment Pin

Internal VNT ring actuator Rod

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Emery Cloth to remove

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Alignment Pin hole

Note wear ring wear marks

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High Temp Anti-Seize to hold spacer in place

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Spacer Rings

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Note housing and Alignment pin postion

Insert Guide vane plate then insert screws thru the plate and thru the spacer rings, make sure spacer rings did not fall out of position!!!

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Insert VNT Rotating ring

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Make sure all Guide vanes are visible with slot aligned with screw

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Insert Spacers and pins

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Check Guide Vane alignment

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High temp Anti-Seize

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Alignment pin inserts into alignment hole

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Anti-Seize

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