A4 Mk1
| Valve gear - exploded view |
Note| The diagram shows the cylinder head on cylinder bank 2 (left-side). |
| 1 - | Bearing cap |
| q | For inlet camshaft |
| q | Before fitting, apply sealant to sealing surfaces of outer bearing caps → Chapter |
| q | Installation position and installation sequence → Chapter |
| 2 - | Cap nut |
| q | 15 Nm |
| 3 - | Bolt |
| q | 10 Nm |
| 4 - | Cap nut |
| q | 15 Nm |
| 5 - | Nut |
| q | 10 Nm |
| 6 - | Bolt |
| q | 10 Nm |
| 7 - | Bearing cap |
| q | For exhaust camshaft |
| q | Installation position and installation sequence → Chapter |
| 8 - | Inlet camshaft |
| q | Removing and installing → Chapter |
| q | Measuring axial clearance → Chapter |
| q | Measuring radial clearance → Chapter |
| q | Runout: max. 0.04 mm |
| 9 - | Exhaust camshaft |
| q | Removing and installing → Chapter |
| q | Measuring axial clearance → Chapter |
| q | Measuring radial clearance → Chapter |
| q | Runout: max. 0.04 mm |
| 10 - | Hydraulic valve compensation element |
| q | Mark installation position with a coloured pen |
| q | Checking → Chapter |
| q | Lubricate contact surface before fitting |
| 11 - | Bolt |
| q | 10 Nm |
| 12 - | Exhauster pump |
| q | For brake servo |
| q | Removing and installing → Chapter „Removing toothed belt from camshaft sprockets“ |
| q | Renew O-rings |
| 13 - | Thrust washers |
| q | 2x |
| 14 - | Cylinder head |
| q | Removing: left-side → Chapter; right-side → Chapter |
| q | Installing → Chapter |
| q | Valve seats are not to be re-worked |
| 15 - | Exhaust valve |
| q | Checking → Chapter |
| q | Valve dimensions → Chapter |
| q | Checking valve guides → Chapter |
| 16 - | Inlet valve |
| q | Checking → Chapter |
| q | Valve dimensions → Chapter |
| q | Checking valve guides → Chapter |
| 17 - | Oil seal |
| q | Renewing → Chapter |
| 18 - | Camshaft sprocket |
| 19 - | Bolt |
| q | Use counter-hold tool -3036- when loosening and tightening |
| q | 75 Nm |
| 20 - | Valve stem oil seal |
| q | Renewing: with cylinder head installed → Chapter, with cylinder head removed → Chapter |
| 21 - | Valve spring |
| 22 - | Valve spring plate |
| 23 - | Valve cotters |
| 24 - | Hydraulic valve compensation element |
| q | Mark installation position with a coloured pen |
| q | Checking → Chapter |
| q | Lubricate contact surface before fitting |
| 25 - | Guide for rocker finger |
| 26 - | Rocker finger |
| q | Mark installation position with a coloured pen |
