Passat Sedan L4-1.9L DSL Turbo (AHH) (1998)
Valve: Service and Repair
Valve train, servicing
Note: Cylinder heads with cracks between the valve seats may be used without reducing engine life, provided the cracks are small and not more than
0.5 mm wide.
1. Bearing cap
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Installation position refer to Fig. 2
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Installation sequence refer to Camshaft, Lifters and Push Rods; Camshaft, Engine.
2. 20 Nm (15 ft. lbs.)
3. Camshaft
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Axial clearance, checking refer to Fig 1
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Removing and installing
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Radial clearance, checking with plastigage Wear limit: 0.11 mm
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Run-out: max. 0.01 mm
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Identification and valve timing refer to Fig. 4
4. Hydraulic lifter
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Do not interchange
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With hydraulic valve clearance compensation
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Checking refer to Camshaft, Lifters and Push Rods; Lifter, Valve.
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Store with cam contact surface facing downwards
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Before installing check camshaft axial clearance refer to Fig. 1
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Oil contact surfaces
5. Keepers
6. Valve spring plate, upper
7. Valve spring
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Removing and installing: with Cylinder head removed: use 2037 with Cylinder head installed:
8. Valve stem seal
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Replacing
9. Valve guide
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Checking
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Replacing
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Service version with collar
10. Cylinder head
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See note refer to Cylinder Head Assembly.
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Reworking valve seats
11. Oil seal