Crankshaft Assembly Overview
WARNING: This page is about a different car, the 2008 Volkswagen R32. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Before removing the crankshaft, prepare a suitable place to store the crankshaft to make sure that the sensor wheel -item 6- does not make contact or become damaged.
When performing repair work, secure the engine to the engine and transmission holder VAS 6095 or the holding fixture VW 540 with spacers VW 540/1B.
- Crankshaft Bearing Cap
- Bearing cap 1: Vibration damper side.
- Bearing cap 5 with notches for thrust washers.
- Retaining tabs on the bearing shells and cylinder block/bearing caps must align with one another.
- Bolt, 30 Nm + 180° (1/2) additional turn
- Always replace.
- 2 x 90° further turns is permitted.
- Bearing Shell
- For the bearing cap without a oil groove.
- For the cylinder block with a oil groove.
- Do not interchange the used bearing shells (mark).
- Thrust Washer
- For the number 5 bearing cap.
- Observe the locating point.
- Crankshaft
- If the crankshaft if being replaced, then the bearing shells must be reallocated. Refer to CRANKSHAFT BEARING SHELL ALLOCATION .
- Before removing, observe the note at the top.
- Removing and installing the needle bearing. Refer to CRANKSHAFT NEEDLE BEARINGS .
- Axial clearance:
New: 0.07 to 0.23 mm
Wear limit: 0.30 mm
- Measure the radial clearance with Plastigage:
New: 0.02 to 0.06 mm
Wear limit: 0.10 mm
- Do not turn the crankshaft when measuring the radial play.
- Crankshaft dimensions:
Main bearing: 59.958 to 59.978 mm
Connecting rod bearing: 53.958 to 53.978 mm
- Reworking is not permissible.
- Sensor Wheel
- For the engine speed (RPM) sensor.
- Always replace.
- Installing, refer to CRANKSHAFT SENSOR WHEEL, INSTALLING .
- Screw, 10 Nm + 90° (1/4) additional turn
- Always replace.
- Oil Spray Jet
- For crankshaft bearings 2 through 7.
- For piston cooling.
- Opening pressure: 2.0 bar
- Removing and installing, refer to Fig 2.
- See note in GENERAL REPAIR INFORMATION .