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Toothed belt: removing and fitting - vehicles equipped with small engine support foot > < Bracket for auxiliary units: Removing and fitting (versions with large support)

Leon Mk1

Notched belt drive components - assembly overview
Notched belt drive components - assembly overview
Part 1
   
1 - Cap
q   For vibration damper
2 - Special bolt - 10 Nm + 90° (1/4 turn) further
q   Replacement → Parts catalogue
3 - Vibration damper
q   For ribbed belt pulley
q   Can only be installed in one position.
q   removing and fitting → Chapter
4 - 10 Nm
q   Fit with locking fluid; locking fluid → Parts catalogue
5 - Screw for the engine support foot
q   Replace.
q   Tightening torque and succession order to tighten for the small engine foot support → Fig.
q   Tightening torque and succession order to tighten for the large engine foot support → Fig.
6 - Engine support
Different procedures:
q   Small engine support foot → Fig.
q   Large engine support foot → Fig.
7 - Upper protection element for the notched belt
q   When fitting, carefully hook on to the centre protection for the notched belt
8 - Notched belt guard - centre part
q   For removal, remove the notched belt upper protection and unscrew the Poly-V belt tensioning device
9 - Notched belt guard - lower part
10 - 10 Nm
q   Fit with locking fluid; locking fluid → Parts catalogue

   
Tightening torque and succession order to tighten for the small engine foot support
  A13-0505
1. phase
–  Screw on the new bolt (by hand) -1 ... 3-.
2. phase
–  Tighten the screws -1 ... 3- to 40 Nm with a torque wrench.
3. phase
–  Retighten the screws -1 … 3- 90° (1/4 backwards) with a spanner.

   
Tightening torque and succession order to tighten for the large engine foot support
  A13-10365
1. phase
–  Screw on the new bolt (by hand) -1 ... 3-.
2. phase
–  Tighten the screws -1 ... 3- to 40 Nm with a torque wrench.
3. phase
–  Retighten the screws -1 … 3- 180° (1/2 backwards) with a spanner.

Part 2
  Note
Before removing the notched belt, mark its running direction with chalk or with a felt tipped pen.
   
1 - 120 Nm + 90° (1/4 turn) further
q   Replace.
q   Do not use oil
q   Use locking spanner -T20018B- to loosen and tighten → Chapter
2 - 20 Nm
3 - Idler wheel
4 - 20 Nm +45° (1/8 turn)
q   Use the correct tightening torque to avoid damages to the engine.
5 - Tensioning roller
6 - Notched belt
q   Mark direction of rotation with chalk or felt pen before removing
q   Check for wear
q   Removing vehicles with small engine support → Chapter; vehicles with large engine support → Chapter
q   Fitting (adjusting the valve timing): vehicles with small engine support → Anchor; vehicles with large engine support → Anchor
7 - 25 Nm
8 - Camshaft wheels
q   For exhaust camshaft
q   Mark the installation position
9 - 25 Nm
10 - Camshaft wheels
q   for exhaust camshaft
11 - 100 Nm
q   Use retention tool -T10051- to loosen and tighten, see camshaft: removing and installing → Chapter
12 - 100 Nm
q   Use retention tool -T10051- to loosen and tighten, see camshaft: removing and installing → Chapter
13 - Hub
q   For exhaust camshaft
q   To remove, use puller -T10052A-.
q   Extract → Chapter
14 - Hub
q   for exhaust camshaft
q   With sender wheel for Hall sender -G40-
q   To remove, use puller -T10052A-.
q   Extract → Chapter
15 - Rear notched belt guard
16 - Rubber grommet
q   If this is damaged, replace it
17 - 10 Nm
q   Fit with locking fluid; locking fluid → Parts catalogue
18 - O-ring
q   Replace.
19 - Coolant pump
q   removing and fitting → Chapter
20 - 15 Nm
21 - Crankshaft notched belt wheel
q   There should be no oil on the contact surface between the notched belt wheel and the crankshaft
q   Fitting is only possible in one position
22 - Idler wheel
23 - Return roller screw
q   Replace.
q   There are different screws for vehicles with small or large engine support foot
q   Tightening torques: vehicles with small engine support → Fig.; vehicles with large engine support → Fig.

   
Tightening torque for return roller - vehicles with small engine foot support
Screw -arrow- without interior thread
l  Tightening torques: tighten to 40 Nm and 90° (1/4 turn) retighten.
  A13-0668
Tightening torque for return roller - vehicles with large engine foot support
Screw -arrow- with interior thread to hold the engine support foot
Tightening torques: tighten to 90 Nm and 90° (1/4 turn) retighten.
  A13-10430

Toothed belt: removing and fitting - vehicles equipped with small engine support foot > < Bracket for auxiliary units: Removing and fitting (versions with large support)