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Extracting and driving in needle bearing for crankshaft > < Crankshaft: disassembly and assembly

Leon Mk2

Crankshaft - exploded view
   
Crankshaft - exploded view
1 - Bearing cap
q   For cylinder block with oil groove.
q   Do not interchange used bearing shells (mark).
q   Inserting bearing shells for cylinder block with correct colour-coding → Fig.
2 - Pinions
q   For drive chain for oil pump
q   replace → Chapter
3 - Bearing cap
q   For bearing cap without oil groove.
q   Do not interchange used bearing shells (mark).
q   The crankshaft bearing shells in the bearing caps are supplied as replacement part only with the colour coding„yellow“
4 - Thrust washers
q   For bearing 3.
q   Fasten properly
5 - 65 Nm + 90° (1/4 turn)
q   Replace
q   For measuring radial clearance of crankshaft tighten to 65 Nm, but not further
6 - Bearing cap
q   Bearing cap 1: Pulley side:
q   Bearing cap 3 with rebates for the thrust washer
q   Bearing shell retaining lugs in cylinder block and bearing caps must align.
7 - 10 Nm + 90° (1/4 turn)
q   Replace
q   Always renew sender wheel if bolts have been loosened - → Fig.
8 - Needle bearing
q   For vehicles with manual gearbox
q   Extracting and driving in → Chapter
9 - Generator wheel:
q   For engine speed sender -G28-
q   Can only be installed in one position, holes are offset.
q   Always renew sender wheel if bolts have been loosened -
q   removing and fitting → Fig.
10 - Crankshaft
q   New axial play: 0.07 - 0.23 mm; Wear limit: 0.30 mm
q   Checking radial clearance with Plastigage: new: 0.02 - 0.04 mm; Wear limit: 0.15 mm
q   Do not rotate crankshaft when checking radial clearance.
q   Crankshaft dimensions → Chapter

   
Sender wheel: removing and installing
–  Renew sender wheel -2- each time the bolts -1- are loosened.
  Note
t  If the countersunk bolts are tightened a second time, the seats for the bolt heads in the sender wheel will be deformed to such an extent that the bolt heads make contact with the crankshaft -3--arrows- and the sender wheel beneath the bolts will be loose.
t  The sender wheel can only be fitted in one position; the holes are offset.
Specified torque .
  A13-0150
Components: Nm
Sender wheel on crankshaft 10 + 90° → Remark2)

1)  Renew bolts
2)  90º is equivalent to a quarter turn
   
Allocation of the crankshaft bearing shells for cylinder block
The cylinder block is fitted at the factory with bearing shells of the appropriate thickness. Coloured dots are used to identify the thickness of the bearing shells.
  Note
The arrow indicates direction of movement.
Which bearing shell must be inserted in which place can be seen at the lower cylinder block sealing surface with the letters.
  A13-0405
Letter at the cylinder blockColour of the bearing
S=Black
R=red
G=Yellow colour

  Note
The crankshaft bearing shells in the bearing caps are supplied as replacement part only with the colour coding„yellow“
   

Extracting and driving in needle bearing for crankshaft > < Crankshaft: disassembly and assembly