Page 5 of 62
15-5
 
  
11 - 
Hydraulic valve lifter (intake) 
Notes  page 15
-45
12 - 
Valve keepers 
13 - 
Valve spring retainer 
14 - 
Valve spring 
15 - 
Valve stem oil seal 
Replacing with cylinder head installed   
page 15
-47
 
16 - 
Rubber/metal seal 
Always replace
17 - 
Seal Always replace
18 - 
Cylinder head Removing and installing   page 15
-18
Checking for distortion   page 15
-27
Resurfacing  page 15
-28
19 - 
Exhaust valve 
20 - 
Intake valve 
21 - 
Oil seal 
Camshaft Position (CMP) sensor side
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        Page 7 of 62
15-6
 
  
22 - 
Shutter wheel for Camshaft Position 
(CMP) sensor -G40- 
Note position (notch on camshaft)
23 - 
Washer Conical
24 - 
Bolt 25 Nm (18 ft lb)
25 - 
Camshaft Position (CMP) sensor -G40- 
26 - 
Bolt 10 Nm (7 ft lb)
27 - 
Bolt 55 Nm (41 ft lb)
28 - 
Camshaft sprocket 
29 - 
Oil seal Toothed belt sideReplacing  page 15
-14
30 - 
Hydraulic valve lifter 
Notes  page 15
-45
Removing and installing with cylinder head 
installed  page 15
-31
 
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        Page 11 of 62
15-10
 
  
15 - 
Valve spring retainer 
16 - 
Valve spring 
17 - 
Valve stem oil seal 
Replacing with cylinder head installed   
page 15
-47
 
18 - 
Rubber/metal seal 
Always replace
19 - 
Seal Always replace
20 - 
Cylinder head Removing and installing   page 15
-18
Checking for distortion   page 15
-27
Resurfacing  page 15
-28
21 - 
Exhaust valve 
22 - 
Intake valve 
23 - 
Oil seal 
Camshaft Position (CMP) sensor sideReplacing  page 15
-14
Pa
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        Page 12 of 62
15-11
 
  
24 - 
Shutter wheel for Camshaft Position 
(CMP) sensor -G40- 
Note position (notch on camshaft)
25 - 
Washer Conical
26 - 
Bolt 25 Nm (18 ft lb)
27 - 
Camshaft Position (CMP) sensor -G40- 
28 - 
Bolt 10 Nm (7 ft lb)
29 - 
Bolt 55 Nm (41 ft lb)
30 - 
Camshaft sprocket 
31 - 
Oil seal Toothed gear sideReplacing  page 15
-14
Pa
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        Page 16 of 62
15-15
      
Oil seal on Camshaft Position (CMP) sensor 
(left and right cylinder head)  
     
-  Unbolt Camshaft Position (CMP) sensor.
     
   Tightening torque: 10 Nm (7 ft lb)
     
-  Unbolt shutter wheel for Camshaft Position 
(CMP) sensor and carefully pry out using 
screwdriver. 
     
   Tightening torque: 20 Nm (15 ft lb)
    
-  Screw in bolt from 2085/1 adapter.
    
Do not lubricate sealing lip or outer edge of seal before pressing in.  -  Remove seal using 2085 seal puller and bolt from 2085/1.
-  Clean contact surface and sealing surface.
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        Page 18 of 62
15-16
 
    
Rear sealing flange (left cylinder head)  
The sealing flange and rear oil seal on the left cylinder head must be 
replaced together as follows:  -  Press seal flush using 3241/1 press sleeve and 3241/3 bolt.
-  Unbolt engine coolant expansion tank from bracket.
-  Remove crankshaft ventilation line from cylinder head cover.
-  Unbolt Camshaft Position (CMP) sensor.
   Tightening torque: 10 Nm (7 ft lb)
-  Unbolt shutter wheel for Camshaft Position (CMP) sensor G40 and 
carefully pry out using screwdriver. 
-  Remove cylinder head cover.
    
-  Remove double bearing cap (arrows).
-  Remove seal and sealing flange.
-  Clean running and sealing surfaces as well as contact surface of 
double bearing cap. 
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        Page 23 of 62
cover. 
-  Remove intake air duct between Mass Air Flow (MAF) sensor and 
intake air elbow. 
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        Page 24 of 62

15-20
 
    
-  Disconnect blue harness connector on Intake Manifold Tuning (IMT) 
valve. 
-  Disconnect black harness connector for intake air temperature sensor 
on resonator. 
-  Cut tie wraps and move wiring to side.
-  Disconnect vacuum line at cruise control vacuum diaphragm and at 
vacuum booster. 
-  Unbolt cruise control vacuum diaphragm and unhook cruise control 
vacuum diaphragm linkage at throttle body. 
-  Disconnect harness connector on throttle body and vacuum lines on 
fuel pressure regulator. 
    
-  Disconnect harness connectors from camshaft adjustment valve and 
from fuel injectors (arrows). 
-  Disconnect harness connectors from Engine Coolant Temperature 
(ECT) sensor and Camshaft Position (CMP) sensor (arrows). 
-  Cut tie wraps on valve cover.
-  Unclip wiring retainer on fuel rail and disconnect crankshaft housing 
ventilation lines from left and right-side valve covers. Move hoses and 
wiring clear (to rear). 
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