Crankshaft: Service and Repair
Crankshaft Assembly Overview
1 9 Nm
• Fasten in diagonal sequence in steps
2 Sealing flange (belt pulley side)
• Removing and installing, refer to => [ Sealing Flange with Crankshaft Seal, Belt Pulley Side ] Service and Repair
3 Seals
• Different versions
• Replace
4 Crankshaft
• Measuring axial play, refer to => [ Axial Clearance, Measuring ] Testing and Inspection
• Radial clearance, measuring, refer to => [ Radial Clearance, Measuring ] Radial Clearance, Measuring
• Do not turn crankshaft when measuring radial play
• Crankshaft dimensions, refer to => [ Crankshaft Dimensions ] [1][2]Crankshaft, Engine
5 Alignment bushing
• 4 pieces
• Insert into guide frame.
6 Bearing bracket
• To remove, remove timing chain guide rail => [ (Item 26) Guide rail ] Timing Mechanism Drive Chain Assembly Overview
7 Bolt
• For sealing surfaces of cylinder block/guide frame
• Varying bolt lengths and bolt heads
8 Long bolt, large shoulder
• For inner row of guide frame
9 Short bolt, small shoulder
• For outer row of guide frame
10 Thrust washer
• Only on 3rd crankshaft bearing
• Lubricating grooves face outward
• Note locating point in guide frame
• Measuring crankshaft axial clearance, refer to => [ Axial Clearance, Measuring ] Testing and Inspection
11 Bearing shell
• For guide frame without lubricating groove
• Mark used bearing shells for reinstallation but not on the running surface
• Replace the bearing shells worn down to the base layer
• Note installation position
• Insert new bearing shells for guide frame with proper color marking.
12 Centering washer
13 Thrust washer
• Only on 3rd crankshaft bearing
• Lubricating grooves face outward
• Note locating point in guide frame
• Measuring crankshaft axial clearance, refer to => [ Axial Clearance, Measuring ] Testing and Inspection
14 Bearing shell
• For cylinder block with oil groove
• Mark used bearing shells for reinstallation but not on the running surface
• Replace the bearing shells worn down to the base layer
• Note installation position
15 O-ring or sealing ring
• depending on version
• Replace
16 Cylinder block
Centering Washer for Drive Plate on Automatic Transmission 09L
• On vehicles with automatic transmission 09L, the drive plate is bolted to the crankshaft with a centering washer - arrow -.
Sealant Application for Guide Frame, Position of Alignment Bushings
- Clean the sealing surfaces, they must be free of oil and grease on top and bottom.
- Apply sealant beads - arrows - on clean sealing surfaces of guide frame as shown in illustration.
• The groove of sealing surface must be completely filled with sealant.
• The sealant beads must be 1.5 to 2.0 mm above the sealing surface.
- Install seals - 1 to 3 -.
• Depending on the version, the seals - 2 - and - 3 - are connected by a rib.
- Check whether alignment bushings - 4 through 7 - are inserted at locations in guide frame as shown in the illustration.
Installing Guide Frame
- Replace the guide frame bolts - 1 through 16 -.
- Insert the long bolts in the inner row of the guide frame.
- Tighten the bolts in 3 steps according to the tightening sequence:
Allocation of Crankshaft Bearing Shells for Cylinder Block
• Bearing shells with the correct thickness are allocated to the cylinder block in the factory. Colored dots on sides of bearing shells serve for identifying bearing shell thickness.
• Allocation of bearing shells to cylinder block is marked by a letter on the respective bearing on guide frame
Through engine no. AUK 028 000 or BKH 033 000:
On engines through no. AUK 028 000 or BKH 033 000 another allocation of letters on guide frame to bearing shell color applies to bearing 1 (front).
From engine no. AUK 028 001 or BKH 033 001:
Allocation of Crankshaft Bearing Shells for Guide Frame
• Bearing shells with the correct thickness are allocated to the guide frame in the factory. Colored dots on sides of bearing shells serve for identifying bearing shell thickness.
• Allocation of bearing shells to guide frame is marked on flywheel flange of crankshaft by a row of letters. The first letter of the row of letters represents bearing "1", the second letter is for bearing "2", etc.
Through engine no. AUK 028 000 or BKH 033 000:
On engines through no. AUK 028 000 or BKH 033 000 another allocation of letters on crankshaft to bearing shell color applies to bearing 1 (front).
From engine no. AUK 028 001 or BKH 033 001:
