Removing and installing camshaft timing chain, ►29-04-2013 — VW

Removing and installing camshaft timing chain, ►29-04-2013
Special tools and workshop equipment required
Counterhold tool
T10355
Removal tool
T10352
and
removal tool
T10352/1
Locking pin
T40011
Removing
Remove timing chain cover (top)
Chapter
.
Depending on model, remove regulating valve using
removal tool
T10352
or
removal tool
T10352/1
in
direction of arrow
.
Caution
The timing valve has a left-hand thread.
Unscrew bolts
arrows
and remove bearing saddle.
Remove any noise insulation
General body repairs, exterior
Rep. gr.
66
Exterior equipment; Noise insulation
.
Turn vibration damper to TDC position
arrow
using
counterhold
T10355
.
Notch on vibration damper must align with arrow marking on bottom cover for timing chains.
Markings
1
on camshafts must face upwards.
Remove lower timing chain cover
Chapter
.
Press oil pump chain tensioner in direction of
arrow
and lock in place using
locking pin
T40011
.
Remove oil pump chain tensioner
1
.
Remove oil pump chain.
Raise pawl of chain tensioner. To do so, insert a scriber or a suitable screwdriver into chain tensioner hole in
direction of arrow 1
.
Press tensioning rail for timing change in
direction of arrow 2
and secure with
locking pin
T40011
.
Remove camshaft timing chain from cylinder head.
Note
Inlet camshaft will move in direction of engine rotation.
Remove tensioning rail for timing chain
2
.
Remove guide rail for camshaft timing chain
1
.
Remove timing chain.
Installing
Installation is carried out in the reverse order; note the following:
Note
Following procedure must be carried out in a single operation. This requires a 2nd mechanic.
Timing chain links with coloured markings must be positioned at markings on chain sprockets.
Continue to hold wrench until tensioning rail is installed.
Fit timing chain onto exhaust camshaft.
Fit timing chain onto crankshaft.
Use spanner to turn inlet camshaft in direction of
arrow
and fit timing chain.
Fit tensioning rail for timing chain and tighten bolt
2
.
Fit guide rail for camshaft timing chain and tighten bolts
1
.
Attach bearing saddle and screw in bolts
arrows
hand-tight.
Remove
locking pin
T40011
.
Tighten bolts
arrows
for bearing saddle
Chapter
.
Install regulating valve
Item
.
Install timing chain cover (bottom)
Chapter
.
Install timing chain cover (top)
Chapter
.
Install tensioner for poly V-belt
Chapter
.
Install poly V-belt
Chapter
.
Install any noise insulation
General body repairs, exterior
Rep. gr.
66
Exterior equipment; Noise insulation
.
Specified torques
Chapter
“
Assembly overview - cover for timing chain
”
Chapter
“
Assembly overview - camshaft timing chains
”
Chapter
“
Assembly overview - poly V-belt drive
”