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Colour identification > < Crankshaft flange (pulley side) - remove and install|Installation

Polo Mk4

Crankshaft - remove and install
Crankshaft - remove and install
  Note
t  Before removing the crankshaft, have an adequate space ready to set it aside, so that it does not rest on the Engine speed sensor -G28- (Pos. → Item ) or damage this sensor.
t  In order to perform the assembly work, the engine must be fastened with the Support -VW 540- or the Rotary stand for engine and transmission -VAS 6095- to the assembly stand.
  WARNING
Always replace self-locking nuts and screws subject to angular torque.
   
1 - Oil pump
q   With 12-bar overpressure valve.
q   Before installing, check that both guides for oil pump/crankcase centring are in their positions.
q   Remove and install → Chapter.
2 - 15 Nm
3 - Gear
q   To activate the oil pump.
4 - Bearing shells 1, 2, 3, 4 and 5
q   Classification for spare part orders → Fig..
q   For bearing cap without lubrication groove.
q   For crankcase with oil groove.
q   Do not invert bearing shells already used (identify).
5 - 65 Nm 90°
q   Replace after each removal.
q   Tighten to 65 Nm only to measure the radial clearance of the crankshaft.
6 - Bearing cover
q   Bearing cap 1: pulley side.
q   Cover of bearing 3 with groove for adjusting rings.
q   The shoulders for placing the bearing shells, crankcase/bearing cap must be overlapped.
7 - Bearing shell 3
q   → Item.
q   Do not invert bearing shells already used (identify).
8 - Speed transmitter
q   Replace.
q   To Engine speed sensor - G28-.
q   The installation is only possible in one position - displaced holes.
9 - 10 Nm 90°
q   Replace after each removal.
10 - Crankshaft
q   Axial clearance (new): 0.07...0.23 mm, Wear limit: 0.30 mm.
q   Measure radial clearance with “Plastigage” (new): 0.01...00.04 mm, Wear limit: 0.15 mm.
q   Do not rotate the crankshaft when measuring radial gap.
q   Crankshaft measures → Chapter.
11 - Adjustment ring
q   For the engine block, bearing 3.
q   The writing points to the bearing.

   
Crankshaft upper bearing shells identification
The upper bearing shells are associated to the engine block in the factory, with the correct thickness. To identify bearing shell thickness, coloured dots are applied.
On the lower sealing surface of the engine block a lettering indicates the bearing shell thickness and the location in which the shell must be installed.
  N13-0714

Colour identification > < Crankshaft flange (pulley side) - remove and install|Installation