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Crankshaft dimensions > < Crankshaft - Components overview

Leon Mk2

Crankshaft - Components overview
Crankshaft - Components overview
t  Sender wheel: Removing and installing → Fig.
t  Assignation of colour marking of crankshaft bearing shells for cylinder block → Fig.
   
1 - Oil pump:
q   Oil pump - Components overview → Chapter
2 - 15 Nm
3 - Pinions
q   For drive chain for oil pump
q   Note fitting position:
q   Sprocket can only be fitted on oil pump shaft in one position.
q   Oil pump chain sprocket: Removing and installing → Chapter
4 - Semi bearings 1, 2, 3, 4 and 5
q   For cylinder block with oil groove.
q   Do not interchange used bearing shells (mark)
q   Insert bearing shells for cylinder block with correct colour marking → Fig.
q   For bedplate bearing cap without oil groove
q   Lower crankshaft bearing shells are always supplied as a spare part with the colour marking „yellow“.
5 - 40 Nm + 1/4 turn (90 °) further
q   Renew
q   Continuous screw thread
q   To measure the crankshaft radial play, tighten to 40 Nm, but not more
6 - Bearing caps
q   Bearing cap 1: belt pulley end.
q   Installation position: Bearing shell retaining lugs in cylinder block and bearing caps must align.
7 - Bearing shell 3
q   Do not interchange used bearing shells (mark)
8 - Generator wheel:
q   For engine speed sender -G28-
q   Fitting is only possible in one position - holes offset-
q   Always renew sender wheel if bolts have been loosened -
q   Removing and fitting → Fig.
9 - 10 Nm + 1/4 turn (90°) further
q   Renew
q   Always renew sensor wheel if bolts have been loosened → Fig.
10 - Crankshaft
q   Check axial clearance with a gauge set:
t  New: 0.07 ... 0.23 mm.
t  Wear limit: 0.30 mm.
q   Check the radial play using a Plastigage:
t  new: 0,017 ... 0.037 mm.
t  Wear limit: 0.07 mm.
q   When measuring the radial play, do not rotate the crankshaft
q   Crankshaft dimensions → Chapter.
11 - Thrust washer
q   For bearing 3
q   Installation location: The oil grooves point in the direction of the bedplate

   
Sender wheel: removing and installing
–  Replace the sender wheel -2- each time the bolts -1- are loosened.
  Note
t  After a second assembly, the countersunk bolt holes are so deformed that the heads of the bolts make contact with the crankshaft -3--arrows-and the sender wheel remains loose.
t  The sender wheel can only be fitted in one position; the holes are offset.
  A13-0150
Assignation of colour marking of crankshaft bearing shells for cylinder block
  Note
t  Arrow points in direction of travel.
t  In the factory the correct thickness bearing shells are selected for the cylinder block. To identify the thickness of the bearing shells different coloured points are used.
t  The type of bearing shell to be used in each area is identified by letters on the lower surface of the cylinder block seal.
t  The marking can also be seen when the oil sump is installed.
  N13-0714
Letter at the cylinder blockColour of the bearing
B=Blue
R=red
G=Yellow colour
W=White

  Note
t  If the colour markings are not legible, use a blue bearing.
t  The lower bedplate crankshaft bearing shells are always supplied as a spare part with the colour marking „yellow“.
   

Crankshaft dimensions > < Crankshaft - Components overview