Exploded view crankshaft — VW

Exploded view crankshaft
Note
Before removing crankshaft, ensure that a suitable surface for storing crankshaft is prepared so that sender wheel (
Item
) does not contact anything and cannot be damaged.
When working on engine, secure to repair stand using
engine and gearbox support
VW 540
and
supplementary kit
VW 540/1B
.
Oil pump
With 12 bar pressure relief valve
Before installing, check that both dowel sleeves for centring oil pump on cylinder block are fitted
Removing and installing
Item
Bolt
15 Nm
Sprocket
For oil pump drive
Bearing shells
Classification for ordering spare parts
Chapter
For bearing cap without oil groove
For cylinder block with oil groove
Do not interchange used bearing shells (mark)
Bolt
65 Nm +
1
/
4
turn (90 °) further
Renew
Threaded along complete length
Tighten crankshaft to 65 Nm when measuring radial clearance
Bearing cap
Bearing cap 1: Pulley end
Bearing cap 3 with recesses for thrust washers
Bearing shell retaining lugs in cylinder block and bearing caps must be on the same side
Bearing shell 3
Item
Do not interchange used bearing shells (mark)
Sender wheel
Renew
Engine speed sensor
G28
Can only be installed in one position, holes are offset
Bolt
10 Nm +
1
/
4
turn (90 °) further
Renew
Thrust washer
For bearing cap, bearing 3
Note fixing arrangement
Lettering faces bearing pedestal
Crankshaft
Axial clearance new: 0.07...0.23 mm, wear limit: 0.30 mm
Check radial clearance with Plastigage, new: 0.01...0.04 mm, wear limit: 0.15 mm
Do not rotate crankshaft when checking radial clearance
Crankshaft dimensions
Chapter
Thrust washer
For cylinder block, bearing 3
Lettering faces bearing pedestal
Identification for upper main bearing shell (gradual introduction)
Upper main bearing shells of the proper thickness are allocated to the cylinder block in the factory. Coloured spots serve to identify the thickness of the bearing shells.
Which bearing thickness is to be used at each place is marked by letters on the lower sealing surface of the cylinder block.