Leon Mk2
| Valve control: Assembly overview |
| 1 - | 65 Nm |
| 2 - | Cogwheel for timing belt |
| 3 - | Oil seal |
| q | For exhaust camshaft. |
| q | replace → Chapter |
| 4 - | Cylinder head |
| 5 - | Valve guide |
| q | Checking → Chapter |
| 6 - | Valve stem seal |
| q | replace → Chapter |
| 7 - | Valve spring |
| 8 - | Upper valve spring plate |
| 9 - | Woodruff keys |
| 10 - | Hydraulic valve clearance compensator |
| q | Do not exchange position |
| q | Lubricate contact surface |
| 11 - | Woodruff key |
| q | Check for secure seating. |
| 12 - | Exhaust camshaft |
| q | Check radial clearance with Plastigage (bucket tappets not installed), Wear limit: 0.1 mm |
| q | out-of-true: Max. 0.035 mm |
| 13 - | Frame |
| q | With integrated camshaft bearings |
| q | Clean sealing surface; machining not permitted |
| q | Remove old sealant residues |
| 14 - | 8 Nm |
| 15 - | Camshaft adjuster |
| q | removing and fitting → Chapter |
| 16 - | 100 Nm |
| 17 - | Supply camshaft |
| q | Check radial clearance with Plastigage (bucket tappets not installed), Wear limit: 0.1 mm |
| q | out-of-true: Max. 0.035 mm |
| 18 - | Chain tensioner |
| q | Before removing, lock with retention tool -T10115- |
| 19 - | Drive chain |
| q | Check for wear |
| 20 - | 10 Nm |
| 21 - | 10 Nm |
| 22 - | Hall sender -G40- |
| 23 - | Outlet valve |
| q | Not to be reworked, only grinding in is permissible |
| q | Valve dimensions → Fig. |
| q | Valve guides: check → Chapter |
| 24 - | Inlet valve |
| q | Not to be reworked, only grinding in is permissible |
| q | Valve dimensions → Fig. |
| q | Checking valve guides → Chapter |
| 25 - | Sealing cap |
| q | Replace |
| q | Removing: For installed top frame: perforate one side of the cover using a wedge and then lift up |
| q | Installation: without seal; fit with pressure tool -3334- 1 ... 2 mm |
Note
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|
| Dim. | Inlet valve | Outlet valve | |
| Ø a | mm | 26,80 ... 27,00 | 29,80 ... 30,00 |
| Ø b | mm | 5,95 ... 5,97 | 5,94 ... 5,95 |
| c | mm | 104,84 ... 105,34 | 103,64 ... 104,14 |
| α | ∠° | 45 | 45 |
