seat Workshop Repair Guides

SEAT Workshop Service and Repair Manuals

Removing and installing the chain of the balance shaft > < Removing and fitting the distribution chain
balance shaft chain - Assembly overview
   
balance shaft chain - Assembly overview
1 - Bolt.
q   Replace
q   9 Nm.
2 - Balancing shaft
q   Exhaust side
q   Must be renewed if removed
q   Lubricate the mount with engine oil
q   Removing → Chapter
3 - Balance shaft tube
q   Installation position → Fig.
4 - Chain tensioner
q   65 Nm.
5 - cylinder block
6 - Balancing shaft
q   Inlet side
q   Lubricate the mount with engine oil
q   Removing → Chapter
7 - O ring
q   Lubricate with engine oil
8 - Bearing pin
q   Lubricate with engine oil
q   Installation position → Fig.
9 - Intermediate chain pinion
q   for balance shaft
q   If bolt → Item was slackened, idler gear must be renewed
10 - Bolt.
q   Replace
q   9 Nm.
11 - Washer
12 - Bolt.
q   If the bolt was slackened, the timing chain sprocket must be replaced → Item
q   Tightening sequence → Fig.
13 - Lower runner
q   For the balance shaft chain
14 - Guide pin
q   20 Nm.
15 - Tensioning plate
q   For timing chain
16 - Guide pin
q   20 Nm.
17 - balance shaft chain
q   Removing → Chapter
18 - Pinions
q   Installation position → Fig.
19 - Upper runner
q   For the balance shaft chain
20 - Guide pin
q   20 Nm.

   
Fitting position of balance shaft tube
l  The pin of the balance shaft must fit into the slot -arrow-
  A15-10468
Fitting position of the socket pin
l  Replace and lubricate the O-ring -1-
l  The pin -arrow- of the socket pin must fit into the aperture of the engine block
l  lubricate the bearing bolts
  A15-10466
Tightening sequence for intermediate pinion
  Caution
Always renew idler gear. If this is not done, there is no backlash, which causes engine damage.
The new idler gear has a special lubricant coating, which wears off after a short running period and thus automatically creates the specified backlash.
–  Tighten the bolts as follows:
1.  Tighten with torque wrench initially to 10 Nm.
2.  Turn idler gear.
Idler gear must be without play; otherwise loosen bolt and tighten again.
3.  Tighten with torque wrench to 30 Nm.
4.  Use fixed wrench to turn 90° further.
  A15-10464

Removing and installing the chain of the balance shaft > < Removing and fitting the distribution chain