belt AUDI A6 2000 C5 / 2.G AEB ATW Engines Valvetrain Servicing Workshop Manual
[x] Cancel search | Manufacturer: AUDI, Model Year: 2000, Model line: A6, Model: AUDI A6 2000 C5 / 2.GPages: 51, PDF Size: 0.8 MB
Page 14 of 51

15-42
      
Oil seals for camshafts, replacing
 
     
Cylinder head installed 
     Lock carrier in service position   Page 13
-1 
     
Special tools and equipment  
     
2085 seal puller
     3241 seal installer
     3036 retainer
     
Replacing exhaust camshaft oil seal  
     
Removing  
     
-  Remove ribbed belt and ribbed belt tensioner   
Page 13
-15
 . 
     
-  Remove engine covers. 
     
-  Remove upper toothed belt cover   Page 13
-
29
 . 
    
- 
Turn crankshaft at central bolt of toothed belt gear in direction of 
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Page 16 of 51

15-43
      
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. 
    
-  Loosen tensioner (arrows) and lift toothed belt from camshaft gear.
-  Use 3036 Retainer to loosen camshaft gear.
- Remove camshaft gear. 
    
-  Thread camshaft gear retaining bolt (arrow) into camshaft by hand until 
stop to guide 2085 seal puller. 
-  Unthread inner part of 2085 seal puller two turns (approx. 3 mm or 0.12 
in.) and secure using knurled bolt. 
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Page 19 of 51

15-46
 
    
Note:  
While turning camshaft, valves could hit pistons that are at TDC. Verify 
that no piston is at TDC. Valves and/or pistons may be damaged. 
Note:  
Follow all procedures for removing and installing toothed belt   Page 13
-
29
 . 
Note:  
When installing the ribbed belt, make sure it is seated correctly on the 
pulleys. 
Tightening torques   -  Align marking on camshaft gear with marking on cylinder head cover.
-  Align marking on vibration damper to that on lower toothed belt cover.
-  Install toothed belt (adjust valve timing)   Page 13
-32
 .
-  Install ribbed belt and ribbed belt tensioner   Page 13
-15
 .
Component  
Tightening torques  
Camshaft gear to camshaft   65 Nm (48 ft lb)  
Ribbed belt tensioner to mounting bracket   25 Nm (18 ft lb)  
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Page 20 of 51

15-47
      
Replacing intake camshaft oil seal  
     
Removing 
     
-  Remove ribbed belt and ribbed belt tensioner   
Page 13
-15
 . 
    
-  Disconnect harness connector from Camshaft Position (CMP) sensor -
G40-. 
-  Remove upper toothed belt cover   Page 13
-29
 .
-  Remove housing for Camshaft Position (CMP) sensor -G40-.
-  Remove shutter wheel and washer for Camshaft Position (CMP) 
sensor -G40-. 
    
-  Insert 2085/1 adapter into camshaft by hand until stop to guide seal 
puller. 
-  Unscrew inner part of 2085 seal puller two turns (approx. 3 mm or 0.12 
in.) and secure using knurled bolt. 
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Page 22 of 51

15-49
 
    
Note:  
When installing ribbed belt, make sure it is seated correctly on the pulleys. 
Tightening torques   -  Using 3241/3 camshaft fitting tool and 3241/1 pressure sleeve, press 
oil seal in to stop. 
-  Install Camshaft Position (CMP) sensor -G40-   Page 15
-38
 .
-  Install upper toothed belt cover.
-  Install ribbed belt and ribbed belt tensioner   Page 13
-15
 .
Component  
Tightening 
torques  
Shutter wheel for Camshaft Position (CMP) sensor -
G40- to camshaft  25 Nm (18 ft lb)  
Housing for Camshaft Position (CMP) sensor -G40- 
to cylinder head  10 Nm (7 ft lb)  
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Page 23 of 51

15-50
      
Camshafts and hydraulic chain 
tensioner, removing and installing
 
     
Cylinder head installed 
     Lock carrier in service position   Page 13
-1 
     
Special tools and equipment  
     
3036 retainer
     3366 bracket-tensioner 
     
Removing  
     
-  Remove ribbed belt and ribbed belt tensioner   
Page 13
-15
 . 
     
-  Remove engine covers. 
     
-  Remove upper toothed belt cover   Page 13
-
29
 . 
    
-  Turn crankshaft at central bolt of toothed belt gear in direction of engine 
rotation to TDC Cyl. 1 marking (arrows). 
-  Remove cylinder head cover   Page 15
-17
 .
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Page 24 of 51

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. 
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Page 25 of 51

15-51
 
    
-  Loosen tensioner (arrows) and remove toothed belt from camshaft 
gear. 
-  Use 3036 retainer to loosen camshaft gear.
- Remove camshaft gear. 
-  Remove housing for Camshaft Position (CMP) sensor -G40-.
-  Remove shutter wheel for Camshaft Position (CMP) sensor -G40-.
    
CAUTION! 
If over-tightened, the chain tensioner will be damaged.  -  Secure hydraulic chain tensioner using 3366 bracket-tensioner.
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Page 32 of 51

15-58
 
    
Note:  
When turning camshaft, crankshaft must not be at TDC Cyl. 1 for any 
cylinder. Valves and/or pistons may be damaged. 
Note:  
Follow all procedures for removing and installing toothed belt   Page 13
-
29
 . 
CAUTION! 
Note:  
When installing ribbed belt, make sure it is seated correctly on the pulleys.  -  Align marking on camshaft gear with marking on cylinder head cover.
-  Align marking on vibration damper with marking on lower toothed belt 
cover. 
-  Install toothed belt (adjust valve timing)   Page 13
-32
 .
After installing the camshafts, the engine must not be started for 
approx. 30 minutes. The hydraulic valve lifters have to settle 
(otherwise valves will strike the pistons). After installing the valvetrain and lifters, carefully rotate the 
crankshaft by hand at least 2 full revolutions before starting to be 
sure that valves do not strike the pistons. 
-  Install ribbed belt and ribbed belt tensioner   Page 13
-15
 .
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Page 33 of 51

15-59
      
Tightening torques  
     
Component  
Tightening 
torques  
Bearing cap to cylinder head   10 Nm (7 ft lb)  
Hydraulic chain tensioner to 
cylinder head  10 Nm (7 ft lb)  
Shutter wheel for Camshaft 
Position (CMP) sensor -G40- to 
camshaft  25 Nm (18 ft 
lb)  
Housing for Camshaft Position 
(CMP) sensor -G40- to cylinder 
head  10 Nm (7 ft lb)  
Ribbed belt tensioner to 
mounting bracket  25 Nm (18 ft 
lb)  
Camshaft gear to camshaft   65 Nm (48 ft 
lb)  
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