Golf Mk4
| Assembly overview |
| 1 - | 5 Nm + 1/8 turn (45°) further |
| 2 - | Exhaust camshaft bearing cap |
| q | Installation sequence → Chapter. |
| 3 - | Exhaust camshaft |
| q | Checking axial clearance → Fig.. |
| q | Identification and valve timing → Fig. |
| q | Removing and installing → Chapter |
| q | Check radial clearance with Plastigage; wear limit: 0.1 mm. |
| q | Runout: max. 0.01 mm. |
| 4 - | Camshaft adjuster |
| q | Rotate engine only with camshaft adjuster installed. |
| q | Before removing, lock in position with chain tensioner retainer -T10067- → Chapter. |
| q | Dismantling and assembling → Fig.. |
| 5 - | Drive chain |
| q | Before removing, mark direction of rotation (installation position) → Chapter. |
| 6 - | Camshaft chain sprocket |
| q | Removing and installing → Chapter |
| 7 - | Chain sprocket |
| q | Contact surface of chain sprocket must be dry around bolt head when assembled. |
| q | Installing → Chapter. |
| 8 - | 60 Nm + 1/4 turn (90°) further |
| q | Renew. |
| q | Contact surface of chain sprocket must be dry around bolt head when assembled. |
| q | To remove and install counterhold with 32 mm open-end spanner on camshaft → Chapter |
| 9 - | Camshaft timing chain |
| q | Before removing, mark direction of rotation (installation position) → Fig.. |
| q | Installing → Chapter. |
| 10 - | 60 Nm + 1/4 turn (90°) further |
| q | Renew. |
| q | Contact surface of sender wheel must be dry around bolt head when assembled. |
| q | To remove and install counterhold with 32 mm open-end spanner on camshaft → Chapter |
| 11 - | Sender wheel |
| q | Contact surface of camshaft timing chain sprocket and sender wheel must be dry when assembled. |
| q | For Hall sender -G40-. |
| q | Removing and installing → Chapter |
| 12 - | Camshaft chain sprocket |
| q | Removing and installing → Chapter |
| 13 - | Cylinder head height |
| q | Minimum height: a = 139.9 mm. |
| 14 - | Valves |
| q | Do not rework, only lapping-in is permitted. |
| q | Valve dimensions → Fig. |
| 15 - | Cylinder head |
| q | See note → Chapter. |
| q | Reworking valve seats → Chapter. |
| 16 - | Support element |
| q | Before installing, check camshaft axial clearance → Fig.. |
| q | Do not interchange. |
| q | With hydraulic valve clearance compensation. |
| 17 - | Valve stem seal |
| q | Renew. → Chapter. |
| 18 - | Securing clip |
| q | Check for secure seating. |
| 19 - | Roller rocker finger |
| q | Before installing, check camshaft axial clearance → Fig.. |
| q | Do not interchange. |
| q | Check roller bearing for ease of movement. |
| q | Oil contact surface. |
| q | When installing, secure to supporting element using securing clip. |
| 20 - | Valve spring |
| q | Note installation position. |
| q | Removing and installing → Chapter |
| 21 - | Valve spring plate |
| 22 - | Valve cotters |
| 23 - | 20 Nm |
| 24 - | Inlet camshaft |
| q | Checking axial clearance → Fig.. |
| q | Identification and valve timing → Fig. |
| q | Removing and installing → Chapter |
| q | Check radial clearance with Plastigage; wear limit: 0.1 mm. |
| q | Runout: max. 0.01 mm. |
| 25 - | Inlet camshaft bearing cap |
| q | Installation sequence → Chapter. |
