Golf Mk4
Note
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1 - | 100 Nm |
q | Use counterhold tool -3415- to loosen and tighten. |
2 - | Camshaft toothed belt pulley |
3 - | Seal |
q | Renew → Chapter. |
4 - | Woodruff key |
q | Check for secure seating. |
5 - | 20 Nm |
6 - | Bearing cap |
q | Installation position → Fig.. |
q | Installation sequence → Chapter, removing and installing camshaft. |
q | Lightly coat contact surface of bearing cap 1 with sealant -AMV 174 004 01-. |
7 - | Camshaft |
q | Checking axial clearance → Fig.. |
q | Removing and installing → Chapter. |
q | Check radial clearance with plastigage, wear limit: 0.1 mm. |
q | Runout: max. 0.05 mm. |
8 - | Bucket tappet |
q | Do not interchange. |
q | With hydraulic valve clearance compensation. |
q | Checking → Chapter. |
q | Store with cam contact surface downwards. |
q | Before installing check camshaft axial clearance → Fig.. |
q | Oil contact surface. |
9 - | Cotters |
10 - | Upper valve spring plate |
11 - | Valve spring |
q | Removing and installing: with cylinder head removed, use valve spring compressor -2037-; with cylinder head installed → Chapter |
12 - | Valve stem seal |
q | Renew → Chapter. |
13 - | Valve guide |
q | Checking → Chapter. |
q | Renew → Chapter. |
q | Service version with collar. |
14 - | Cylinder head |
q | Reworking sealing surface → Fig.. |
q | Reworking valve seats → Chapter. |
15 - | Valves |
q | Do not rework, only lapping-in is permitted. |
q | Valve dimensions → Fig. |
Note
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Note
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Dimension | Inlet valve | Exhaust valve | |
Ø a | mm | 39,5 ± 0,15 | 32,9 ± 0,15 |
Ø b | mm | 6,98 ± 0,007 | 6,96 ± 0,007 |
c | mm | 91,85 | 91,15 |
α | ∠° | 45 | 45 |