A4 Cabriolet Mk2
Valve gear - exploded view |
Note
The diagram shows the cylinder head on cylinder bank 2 (left-side). |
1 - | Sealing plugs |
2 - | Valve stem oil seal |
q | Renewing with cylinder head installed → Chapter |
q | Renewing with cylinder head removed → Chapter |
3 - | Valve spring |
q | Installation position → Fig. |
4 - | Hydraulic valve compensation element |
q | Clipped into roller rocker finger -item 8- |
q | Checking → Chapter |
q | Do not interchange |
q | Lubricate contact surface |
5 - | Valve spring plate |
6 - | Valve cotters |
7 - | Securing clip |
q | Check for firm attachment |
8 - | Roller rocker finger |
q | Do not interchange |
q | Check roller bearings for ease of movement |
q | Lubricate contact surface |
q | Assembly: attach to hydraulic compensation element -item 4- using securing clip -item 7- |
9 - | Inlet camshaft |
q | Removing and installing → Chapter |
q | Measuring axial clearance → Chapter |
q | Measuring radial clearance → Chapter |
q | Runout: max. 0.04 mm |
10 - | Gasket |
q | Renew |
11 - | Retaining frame |
q | With integrated camshaft bearings |
q | Removing and installing → Chapter „Removing and installing camshafts“ |
12 - | 8 Nm |
q | Observe correct tightening sequence → Chapter „Removing and installing camshafts“ |
13 - | Hall sender for inlet camshaft |
q | Cylinder bank 1 (right-side): Hall sender -G40- |
q | Cylinder bank 2 (left-side): Hall sender 2 -G163- |
14 - | 9 Nm |
15 - | O-ring |
q | Renew |
16 - | 9 Nm |
17 - | Hall sender for exhaust camshaft |
q | Cylinder bank 1 (right-side): Hall sender 3 -G300- |
q | Cylinder bank 2 (left-side): Hall sender 4 -G301- |
18 - | O-ring |
q | Renew |
19 - | Rectangular section seals |
q | For camshaft adjuster |
20 - | Exhaust camshaft |
q | Removing and installing → Chapter |
q | Measuring axial clearance → Chapter |
q | Measuring radial clearance → Chapter |
q | Runout: max. 0.04 mm |
21 - | Cylinder head |
q | Checking valve guides → Chapter |
22 - | Inlet valve |
q | Do not machine, only grinding-in is permitted |
q | Mark installation position for re-installation |
q | Valve dimensions → Chapter |
q | Checking valve guides → Chapter |
23 - | Exhaust valve |
q | Do not machine, only grinding-in is permitted |
q | Mark installation position for re-installation |
q | Valve dimensions → Chapter |
q | Checking valve guides → Chapter |
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