Leon Mk2
| Cylinder head: removing and fitting |
Note| t | Replace cylinder head bolts as a rule. |
| t | On assembling, replace self-locking nuts, bolts subject to goniometric tightening, as well as o-rings and gaskets. |
| t | The hoses must be free of oil and grease before fitting. |
| t | When installing an exchange cylinder head with fitted camshaft, you must oil the contact surfaces between the tappets and the cam surfaces before installing the cylinder head cover. |
| t | The plastic packing pieces for protecting open valves must not be removed until immediately before fitting the cylinder head. |
| t | After the cylinder head or cylinder head gasket is replaced, all the coolant must also be replaced. |
| t | Cylinder heads which have cracks between the valve seats or between valve seat inserts and the spark plug thread can be used further without reducing service life, provided the cracks do not exceed a maximum of 0.3 mm in width, or when no more than the first four spark plug threads are cracked. |
| 1 - | Plug |
| 2 - | Gasket |
| q | Renew if damaged or leaking |
| 3 - | 10 Nm |
| q | Tighten nuts diagonally |
| 4 - | Towards intake hose |
| 5 - | Ring gasket |
| q | Replace |
| 6 - | Plug |
| q | 15 Nm |
| q | Replace |
| 7 - | Cylinder head bolt |
| q | Replace |
| q | Observe the fitting instructions and the order for loosening and tightening → Anchor |
| 8 - | Connection nozzle |
| 9 - | 10 Nm |
| 10 - | Ring gasket |
| q | Replace |
| 11 - | 20 Nm |
| 12 - | Mounting |
| 13 - | Cylinder head gasket |
| q | Replace |
| q | Remove and fit the cylinder head to replace → Chapter. |
| q | Renew coolant after replacing cylinder head gasket |
| 14 - | 15 Nm |
| 15 - | 20 Nm |
| 16 - | Rear protection of the notched belt |
| 17 - | Notched belt |
| q | Mark direction of rotation before removing |
| q | Check for wear |
| q | Do not kink. |
| q | Removing, installing and tensioning → Chapter |
| 18 - | Cylinder head |
| q | Removing and installing → Chapter |
| q | Check for deformation → Fig. |
| q | Cylinder head reworking measurement → Fig. |
| q | Renew coolant after replacing cylinder head gasket |
| 19 - | Oil deflector |
| 20 - | Gasket for cylinder head cover |
| q | Renew if damaged or leaking |
| q | Apply -D 454 300 A2- to touching areas between the bearing caps and the cylinder head |
| 21 - | Cylinder head cover |
| q | Removing and installing → Chapter |
|
|
|
|
