Leon Mk2
Assembly overview |
1 - | 20 Nm + retighten 1/4 turn (90º) |
q | Replace. |
q | Use camshaft immobiliser -T10016- → Fig. to loosen and tighten |
2 - | Camshaft wheels |
q | Observe position when fitting the toothed belt → Chapter |
3 - | Seal |
q | Only replace with camshaft fitted |
q | Lightly lubricate the sealing lip of the oil seal. |
q | Renew → Chapter |
4 - | Notched belt secondary branch |
q | Mark direction of rotation before removing |
q | Check for wear |
q | Do not kink |
q | removing, installing and tensioning → Chapter |
5 - | Camshaft housing |
q | removing and installing → Chapter |
q | Remove any sealant remains. |
q | Carefully clean the contact surfaces making sure that they are free of oil and grease |
q | Before fitting, apply sealant -D 188 003 A1-. |
q | When installing fit vertically from above onto studs and dowel pins |
6 - | Oil filler cap |
7 - | 10 Nm |
q | Replace. |
q | Tighten from centre outwards |
8 - | Filler cap |
9 - | 10 Nm |
10 - | Roller rocker arms |
q | Check that the roller bearings turn smoothly |
q | Oil contact surface |
q | ?When installing, secure to support element using securing clip. |
11 - | Woodruff keys |
12 - | Filler cap |
13 - | 20 Nm |
14 - | Attachment rings |
15 - | Pressure retaining valve, 6 Nm |
q | Do not over tighten; the valve could seize |
q | Clean the thread and fit with sealant -D 154 102 A1- |
16 - | Supporting element |
q | Do not mix them up |
q | With hydraulic valve clearance compensation. |
q | Oil contact surface |
q | Before installing, check camshaft axial clearance → Fig. |
17 - | Valve plate spring |
18 - | Valve spring |
q | Removing and fitting once the cylinder head is dismounted. |
q | (with cylinder head installed) → Chapter |
19 - | Valve stem seal |
q | Renew → Chapter |
20 - | Valve guide for repair |
q | With collar |
21 - | Valve guide |
q | check → Chapter |
22 - | Oil pressure switch -F1- 0.3 bar -0.7 Nm, 25 Nm |
q | check → Chapter |
q | In case of leakage, cut out and replace sealing ring |
23 - | Valves: |
q | Not to be reworked; only grinding-in permissible |
q | Valve dimensions, → Fig. |
24 - | Cylinder head |
q | Reworking valve seats → Chapter. |
q | Reworking sealing surface → Fig. |
25 - | 20 Nm |
26 - | Tension roller of the derived branch of the notched belt. |
q | check → Chapter |
q | Tension the notched belt. → Chapter |
27 - | Screw plug, 45 Nm |
q | Fit using sealant -D 154 102 A1- |
q | Do not screw too far |
q | Maximum depth of entrance below support surface of camshaft housing: 2 mm |
28 - | Camshafts |
q | check the axial play → Fig. |
q | Apply oil before fitting (also axial bearing collar) |
q | Replace the seal rings behind the assembly |
q | Replace the seals → Chapter |
29 - | O-ring |
q | Replace. |
q | Oil before fitting |
Note
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Note
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Dim. | Inlet valve | Outlet valve | |
Ø a | mm | 29,5 | 26,0 |
Ø b | mm | 5,973 | 5,953 |
c | mm | 100,9 | 100,5 |
α | ∠° | 45 | 45 |