Part II - Chain actuation — VW

Part II - Chain actuation
Caution
The crankshaft can not be removed. All it takes is to loosen the screws from the bearing cover of the crankshaft for the bearing shells of the engine block to become deformed. That deformation reduces the gap of the bearing shells. Even if the bearing shells are not replaced, damages due to the change of the gap can be caused.
If the screw of the bearing cover is loosened, the whole engine block with the crankshaft will have to be replaced.
It is not possible to measure the radial gap of the crankshaft with the means available in the workshop.
Pistons cannot be removed.
Cylinder head cover
The seal surface can not be ground.
With integrated camshaft bearings.
Remove old residues of
Sealing compound for engines
AMV 188 001 02
or
Sealing compound for engines
D 154 103 A1
.
Before installation, apply a layer of
Sealing putty for engines
AMV 188 001 02
or
Sealing putty for engines
D 154 103 A1
.
For installation, place in the vertical position, from top down, with the adjustment pins in holes of the head.
Engine block
2 parts.
The screws can not be loosened.
Note
Pistons cannot be removed.
Gear
Crankshaft.
Gear
Rock-shaft.
Note
The fastening screw can not be loosened.
Chain tensioner with tensioning chute
From roller chain
Item
.
Oil pump
Replace complete only.
Sliding chute
From roller chain
Item
.
Gear
Crankshaft.
Gear
From oil pump actuation.
Roller chain
Mark rotation direction before removal (installation position).
Gear
From oil pump.
After installing, adjust the valve timing
Chapter
.
Crankcase
Remove and install in motors with liquid gasket
Chapter
.
Clean the surface from
Engine silicone sealant
D 176 404 A2 ou A3
before the installation.
Install with
Silicone sealant for engine
D 176 404 A2 ou A3
.
15 Nm
8 Nm
Cover
20 Nm 90°
Replace after each removal.
Crankshaft pulley
Remove and install of Poly-V belt
Chapter
.
90 Nm 90°
Replace after each removal.
Lubricate prior to fitting.
Immobilize the crankshaft pulley with the
Spanner
3415
.
The angular torque can be measured with a wrench, e.g. Hazet 6690.
Support bushing
Replace the sealing ring upon each removal.
25 Nm
45 Nm
10 Nm
10 Nm
To intake manifold
Oil separator
With pressure valve.
Sealing ring
Replace if damaged.
Commando box
Install with
Silicone sealant for engine
D 176 404 A2 ou A3
.
For better alignment in the installation, install two vertical screws
M6 x 75mm
in the head and in the engine block.
For better alignment of the command box, install the crankcase with two screws.
Cover
20 Nm 90°
Replace after each removal.
Tensioning chute
Belt tensioner
9 Nm
Roller chain
Gear
Of valve camshaft.
Immobilize the gear with the
Special wrench
3036
.
Guide pin
20 Nm.