drivbiwire vnt15/17 repair procedure - tdi club...

1

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

2

Remove VNT Actuator and the retaining circlip

3

4

5

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

6

7

Always replace oil line!

8

9

10

11

12

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

13

14

15

2 Oclock position With turbo laying on it’s side

16

17

18

19

20

21

Most common area that jams the VNT rotating ring…

22

23

24

One area of concern regarding soot

25

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

26

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

27

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

28

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

29

30

31

32

33

34

35

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

36

37

Carb and Choke cleaner plus Scotch-Brite

38

39

40

41

Pick all the rust from the bearing housing groove

42

Alignment Pin

Internal VNT ring actuator Rod

43

Emery Cloth to remove

44

Alignment Pin hole

Note wear ring wear marks

45

46

High Temp Anti-Seize to hold spacer in place

47

Spacer Rings

48

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!!!

49

Insert VNT Rotating ring

50

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

51

Insert Spacers and pins

52

53

54

Check Guide Vane alignment

55

High temp Anti-Seize

56

Alignment pin inserts into alignment hole

57

Anti-Seize

58