Timing Chain, Component Overview Audi TT 8N рестайлинг

Note. The following list refers to items in see scheme 157.

1. Valve timing housing See «CAMSHAFTS, REMOVING AND INSTALLING»(ref-200989-S12861517732005102400000). Disassembling and assembling, see «DISASSEMBLING AND ASSEMBLING VALVE TIMING HOUSING»(ref-200989-S07585849102005102400000). Check filter for dirt. See «CHECKING FILTER OF VALVE TIMING HOUSING FOR DIRT»(ref-200989-S38830614082005102400000). Lightly coat contact surfaces of oil seals before installing.
2. 8 Nm Replace
3. Camshaft timing chain Mark rotation direction before removing. See «MARKING ROTATION DIRECTION OF TIMING CHAINS»(ref-200989-S20495182092006062600000). Removing from camshafts, see «CAMSHAFT TIMING CHAIN, REMOVING FROM CAMSHAFTS»(ref-200989-S00175647042005102400000) Removing and installing, see «CAMSHAFT TIMING CHAIN, REMOVING FROM CAMSHAFTS»(ref-200989-S00175647042005102400000).
4. Camshaft adjuster - exhaust Identification: 32A Removing and installing, see «CAMSHAFT TIMING CHAIN, REMOVING FROM CAMSHAFTS»(ref-200989-S00175647042005102400000)
5. Intermediate shaft
6. Thrust washer
7. 8 Nm Install using locking fluid See Parts catalog.
8. Guide rail for timing chain To remove it is first necessary to remove both upper and lower covers for timing chains
9. Pivot pin
10. Chain tensioner for camshaft timing chain, 40 Nm Removing and installing, see «CAMSHAFT TIMING CHAIN, REMOVING FROM CAMSHAFTS»(ref-200989-S00175647042005102400000)
11. Seal Replace if damaged or leaking
12. Sprocket for drive chain for valve gear See «DRIVE CHAIN FOR VALVE GEAR AND CAMSHAFT TIMING CHAIN, REMOVING AND INSTALLING»(ref-200989-S12831958972005102400000).
13. Sprocket for camshaft timing chain See «DRIVE CHAIN FOR VALVE GEAR AND CAMSHAFT TIMING CHAIN, REMOVING AND INSTALLING»(ref-200989-S12831958972005102400000).
14. 60 Nm + 90° (1/4 turn) further REPLACE When loosening and tightening, counterhold vibration damper with counterhold tool T10069.
15. Chain tensioner with guide rail For drive chain Before installing, release locking spline in chain tensioner with a small screwdriver and press guide rail against chain tensioner
16. Drive sprocket chain Integral part of chain
17. Drive chain for valve gear Mark rotation direction before removing. see scheme 158 See «DRIVE CHAIN FOR VALVE GEAR AND CAMSHAFT TIMING CHAIN, REMOVING AND INSTALLING»(ref-200989-S12831958972005102400000).
18. Guide rail for drive chain for valve gear See «DRIVE CHAIN FOR VALVE GEAR AND CAMSHAFT TIMING CHAIN, REMOVING AND INSTALLING»(ref-200989-S12831958972005102400000).
19. Pin, 10 Nm For guide rail
20. 18 Nm
21. 23 Nm
22. Camshaft adjuster - intake Identification: 24E Removing and installing, see «CAMSHAFT TIMING CHAIN, REMOVING FROM CAMSHAFTS»(ref-200989-S00175647042005102400000)
23. 60 Nm + 90° (1/4 turn) further REPLACE Contact surface of sender wheel at bolt head must be dry when installing To remove and install: counterhold with 32 mm open end wrench on camshaft. See «CAMSHAFT TIMING CHAIN, REMOVING FROM CAMSHAFTS»(ref-200989-S00175647042005102400000).
24. Guide rail for camshaft timing chain Removing and installing, see «CAMSHAFT TIMING CHAIN, REMOVING FROM CAMSHAFTS»(ref-200989-S00175647042005102400000)
25. Valve -1- for camshaft adjustment -N205- For intake camshaft Mark electrical connector before disconnecting
26. Camshaft adjustment valve 1 (exhaust) -N318- For exhaust camshaft Mark electrical connector before disconnecting
27. Guide rail for camshaft timing chain Clipped onto valve timing housing

Scheme 154

Scheme 155

1. Mark rotation direction of timing chains with colored arrows before removing (arrows).

Note. Do not mark chains using a center punch or by notching.