Passat Sedan L4-1781cc 1.8L Turbo (AEB) (1999)
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Use 3036 counter-hold to loosen and tighten
17. Camshaft sprocket
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Note installed position: Small web of camshaft sprocket points outwards and No. 1 Cyl. TDC marking is visible
18. Oil seal
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Replacing
19. Valve guide
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Checking
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Replacing
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Servicing version has a collar
20. Valve stem seal
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Replacing
21. Valve spring
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Removing and installing: with cyl head removed and 3362 installed:
22. Upper valve spring plate
23. Valve keepers
24. 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 surfaces facing downwards
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Before installing, check camshaft axial clearance refer to Fig. 2
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Oil contact surfaces
25. intake camshaft bearing cap
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Installation position and installation sequence
26. Double bearing cap
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Lightly coat bearing cap contact surface with sealant: AMV 174 004 01
27. Exhaust cam bearing cap
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Installed position and installation sequence
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Lightly coat last (outer) bearing cap contact surface with sealant: AMV 174 004 01
28. Exhaust camshaft
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Axial clearance, checking refer to Fig. 2
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Removing and installing
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Radial clearance, checking with plastigage: Wear limit: 0.1 mm
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Run-out: 0.01 mm maximum
Fig. 1 Cylinder head sealing surface, reworking
Note: The dimension for reworking is measured through the holes for the cylinder head bolts
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a = minimum 139.2 mm
Fig. 2 Camshaft axial clearance, checking
Special tools, testers, measuring instruments and auxiliary items required
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VW 387 Universal dial gauge bracket
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Dial gauge
