Removal and Replacement

Crankshaft, assembly overview

Crankshaft, assembly overview:

1 - Bearing shells 1, 2, 4 and 5
^ For bearing cap without oil groove
^ For cylinder block with oil groove
^ Do not interchange used bearing shells (mark)

2 - Thrust washers
^ For bearing cap 3
^ Note securing arrangement

3 - 65 Nm plus 1/4 turn (90°)
^ Replace
^ To measure radial clearance, tighten to 65 Nm, but do not turn further

4 - Bearing cap
^ Bearing cap 1: Belt pulley end
^ Bearing cap 3: With recesses for thrust washers
^ Bearing shell retaining lugs in cylinder block and bearing caps must align

5 - Bearing shell 3
^ For bearing cap without oil groove
^ For cylinder block with oil groove

6 - Needle bearing

7 - Sender wheel
^ For Engine speed (RPM) sensor -G28-
^ Replace if damaged
^ Every time screws are loosened replace sender wheel

8 - 10 Nm plus 1/4 turn (90°)
^ Replace
^ Every time screws are loosened replace sender wheel

9 - Dowel pin

10 - Crankshaft
^ Axial clearance new: 0.07 to 0.17 mm
- Wear limit: 0.37 mm
^ Check radial clearance with Plastigage(R)
- new: 0.03 to 0.08 mm
- Wear limit: 0.17 mm
^ Do not rotate crankshaft when checking radial clearance

11 - Thrust washers
^ For cylinder block, bearing 3





Checking projection of dowel pin from crankshaft

Special tools, testers and auxiliary items required
^ Depth gauge (commercially available)
- Check dowel pin projection - a - with a depth gauge when sender wheel - 1 - is removed.

1. Sender wheel
2. Securing bolt
3. Dowel pin projection 3 out of crankshaft: a 2.5 to 3.0mm





Removing and installing sender wheel
- Replace sender wheel - 2 - every time screws - 1 - are loosened.
- Replace screws - 1 -.
- Tightening torque: 10 Nm plus 1/4 turn (90°)

Note:
^ After having secured the sender wheel a second time, the securing point of the countersunk screws in the wheel is deformed in such a way that the bolt heads touch the crankshaft - 3 - - arrows - and the sender wheel is located loosely below the screws.