engine AUDI TT 1998 8N / 1.G AEB ATW Engines Engine Assembly Workshop Manual
[x] Cancel search | Manufacturer: AUDI, Model Year: 1998, Model line: TT, Model: AUDI TT 1998 8N / 1.GPages: 38, PDF Size: 0.74 MB
Page 1 of 38

13-1
 
  
Engine, disassembling and 
assembling Lock carrier, moving into service position
 
Special tools and equipment  
3369 support tool  
1 - 
Bolts 
45 Nm (33 ft lb)
2 - 
Bolts 45 Nm (33 ft lb)
3 - 
Bolts 10 Nm (7 ft lb)
4 - 
Bolts 10 Nm (7 ft lb)
5 - 
Bore For 3369 support tool
6 - 
Lock carrier bore 
7 - 
Fender bore 
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Page 19 of 38

13-17
      
Installing  
     
Note:  
     When installing ribbed belt, make sure it is 
seated correctly on the pulley. 
     
-  Place ribbed belt on belt pulleys for crankshaft, 
viscous fan and power steering pump, (use tools 
to pull up if necessary). 
    
-  Move ribbed belt tensioner in direction of arrow.
-  Install ribbed belt on belt pulley for generator last and release tension 
on belt tensioner. 
-  Check ribbed belt for proper installation.
   Ribbed belt routing   Page 13
-12
-  Install ribbed belt for A/C compressor.
   Ribbed belt routing   Page 13
-12
    
-  Use torque wrench to pre-tighten belt tensioner hex screw to 25 Nm 
(18 ft lb). 
-  Tighten bolts -A- to 20 Nm (15 ft lb) at same time.
-  Start engine and check running of belt.
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Page 21 of 38

13-19
      
Installing  
      Installation is the reverse of removal, noting the 
following:  
     
-  Install V-belt and loosely bolt both halves of belt 
pulley to coolant pump. 
     
-  Slowly bring belt pulley halves together by 
turning coolant pump and tightening bolts for 
belt pulley in stages. 
     
   While tightening pulley halves, the V-belt must 
move outward and sit correctly on belt pulley. 
     
-  Tighten bolts to 25 Nm (18 ft lb).
     
Note:  
     Adjustment of V-belt tension for coolant pump is 
not possible. 
     
-  Install ribbed belt and release tension on 
tensioner. 
     
-  Start engine and check running of belt.
     
-  Check tightening torque of bolts for coolant 
pump belt pulley. 
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Page 32 of 38

13-29
      
Toothed belt, removing and installing
 
     
Removing  
     
Engine installed 
     Lock carrier in service position   Page 13
-1 
     
Special tools and equipment  
      V159 pin wrench  
     
-  Remove ribbed belt and ribbed belt tensioner   
Page 13
-15
 . 
     
-  Remove viscous clutch (with belt pulley)   Page 
13
-14
 , Fig.   1
 . 
     
-  Remove upper toothed belt cover.
     
CAUTION! 
     
Before removing toothed belt, note direction 
of rotation with chalk or felt-tip marker. 
Reversing the direction of rotation of a used 
belt can destroy the belt. 
    
-  Turn crankshaft at central bolt of toothed belt gear in direction of 
engine rotation to TDC Cyl.1 marking (arrows). 
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Page 35 of 38

13-32
      
Installing (adjust valve timing)  
     
Note:  
     
Use the following procedure to adjust toothed 
belt, even for repairs that only require removal 
of toothed belt from camshaft gear. 
     Adjustments can be made on a hot or cold 
engine. 
     
CAUTION! 
     
When turning camshaft, crankshaft may not 
be at TDC for any cylinder. Valves and/or 
piston heads may be damaged. 
    
-  Align marking on camshaft gear to marking on cylinder head cover.
-  Place toothed belt on crankshaft gear noting direction of rotation.
-  Install lower toothed belt cover.
-  Using a bolt, secure vibration damper/belt pulley (note locating point).
-  Set crankshaft to TDC Cyl. 1 position.
-  Place toothed belt on belt tensioner and camshaft gear.
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Page 37 of 38

13-34
 
    
-  Counterhold toothed belt tensioner using 2 pin spanner -B- and tighten 
mounting screw -3-. 
    
Note:  
When installing the ribbed belt, make sure it is seated correctly on the 
pulley.  -  Turn crankshaft at central bolt for toothed belt gear two rotations in 
direction of engine rotation, until camshaft and crankshaft markings 
align with their respective reference points. 
-  Install vibration damper/belt pulley.
-  Install upper toothed belt cover.
-  Install ribbed belt and ribbed belt tensioner   Page 13
-17
 .
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