volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Removing and installing camshafts > < Valve gear
Assembly overview
   
Assembly overview
1 - 5 Nm + 1/8 turn (45°) further
2 - Exhaust camshaft bearing cap
q   Installation sequence → Chapter.
3 - Seal
q   Renew if leaking.
q   When installing valve timing housing, lightly lubricate contact surfaces of seal.
q   When replacing seals, do not spread too widely.
4 - Exhaust camshaft
q   Checking radial clearance with Plastigage; wear limit: 0.1 mm.
q   Runout: max. 0.04 mm.
q   Checking axial clearance → Fig..
q   Identification and valve timing → Fig.
q   Removing and installing → Chapter.
5 - Valve timing housing
q   Lightly lubricate contact surfaces of oil seals before installing.
q   Dismantling and assembling → Fig..
q   Before installing valve timing housing, check strainer for soiling → Fig..
q   Removing and installing → Chapter.
6 - Camshaft timing chain
q   Before removing, mark direction of rotation (installation position) → Fig..
q   Installing → Chapter.
7 - Exhaust camshaft adjuster
q   Identification: 32A.
q   Only rotate engine when camshaft adjuster is installed and chain is fitted
q   Installing → Chapter.
8 - 60 Nm + 1/4 turn (90°) further
q   Renew.
q   Contact surface of sender wheel must be dry around bolt head when installed.
q   To remove and install, counterhold with 32 mm open-end spanner on camshaft → Chapter
9 - Inlet camshaft adjuster
q   Identification: 24E
q   Only rotate engine when camshaft adjuster is installed and chain is fitted
q   Installing → Chapter.
10 - Cylinder head height
q   Minimum height: a = 139.9 mm.
11 - Valves
q   Do not rework, only lapping-in is permitted.
q   Valve dimensions → Fig..
12 - Cylinder head
q   Check for distortion → Fig..
q   Removing and installing → Chapter.
q   Reworking valve seats → Chapter.
q   After renewing, renew entire coolant.
13 - Support element
q   Before installing, check camshaft axial clearance → Fig..
q   Do not interchange.
q   With hydraulic valve clearance compensation.
14 - Valve stem seal
q   Renewing → Chapter.
15 - Securing clip
q   Check for secure seating.
16 - 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.
17 - Valve spring
q   Note installation position.
q   Removing and installing → Chapter.
18 - Valve spring plate
19 - Valve cotters
20 - Inlet camshaft bearing cap
q   Installation sequence → Chapter.
21 - Inlet camshaft
q   Checking radial clearance with Plastigage; wear limit: 0.1 mm.
q   Runout: max. 0.04 mm.
q   Checking axial clearance → Fig..
q   Identification and valve timing → Fig.
q   Removing and installing → Chapter.

   
Dismantling and assembling valve timing housing
1 - Guide rail: clipped into control housing
2 - Valve timing housing
3 - Inlet camshaft control valve 1 -N205-
4 - Exhaust camshaft control valve 1 -N318-
5 - 8 Nm (Insert with locking fluid -D 000 600 A2-).
  N15-0426
Checking valve timing housing strainer for soiling.
–  Unclip strainer -2- from back of valve timing housing -1- and remove any dirt.
  N15-0415

Removing and installing camshafts > < Valve gear