Overview - Crankshaft
WARNING: This page is about a different variant/trim than selected.
NOTE:
For assembly work, secure the engine on the Engine And Transmission Holder VAS6095. Refer to ENGINE, SECURING ON ENGINE AND TRANSMISSION HOLDER .
- Sealing Flange, Belt Pulley Side
- Replacing. Refer to SEALING FLANGE WITH CRANKSHAFT SEAL, BELT PULLEY SIDE, REMOVING AND INSTALLING
- Bolt
- Tightening specification and sequence. Refer to Figure
- Crankshaft
- Axial play, measuring. Refer to CRANKSHAFT, MEASURING AXIAL CLEARANCE
- Radial play, measuring. Refer to CRANKSHAFT, MEASURING RADIAL CLEARANCE
- Crankshaft dimensions. Refer to CRANKSHAFT DIMENSIONS
- Alignment Sleeve
- Quantity: 4
- Insert into guide frame. Refer to Fig 4
- Seal
- Replace
- Bolt
- For guide frame to cylinder block sealing surfaces
- There are different bolt lengths and bolt heads
- Tightening specification and sequence. Refer to Fig 5.
- Bolt
- Long, large shoulder
- For inner row of guide frame
- Replace
- Use old bolts to measure radial play.
- Tightening specification and sequence. Refer to Fig 5
- Bolt
- Short, small shoulder
- For outer row of guide frame
- Tightening specification and sequence. Refer to Fig 5
- Guide Frame
- With Oil Pressure Regulation Valve - N428-.Refer to Fig 8
- To remove, remove timing chain guide rail. Refer to -item 1-, OVERVIEW - TIMING MECHANISM DRIVE CHAIN
- Sealant application. Refer to Fig 4
- Oil Pressure Regulation Valve -N428-, emoving and Installing. Refer to Oil Pressure Regulation Valve -N428-, EMOVING AND INSTALLING .
- Seal
- Replace
- Thrust Washer
- Crankshaft bearing 3 only
- Installed position: the oil groove faces outside
- Note locating point in guide frame
- Bearing Shell
- For guide frame without lubricating groove
- Replace any worn bearing shells
- Pay attention to the installed position.
- Insert new bearing shells for guide frame with proper color marking. Refer to Fig 7
- Thrust Washer
- Crankshaft bearing 3 only
- Installed position: the oil groove faces outside
- Pay attention to the locating point on the cylinder block
- Bearing Shell
- For cylinder block with oil groove
- Replace any worn bearing shells
- Pay attention to the installed position.
- Insert new bearing shells for cylinder block with proper color marking. Refer to Fig 6
- Cylinder Block
NOTE:
Replace the O-ring.
-- Tighten the locking bolt -arrow- to 14 Nm.
- Connector
- O-ring - replace
- Bolt, 9 Nm
- Oil Pressure Regulation Valve -N428-
-- Clean the sealing surfaces; they must be free of oil and grease.
-- Apply sealant beads -arrows- to the clean sealing surfaces on the guide frame as shown in the 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.
-- Position seals -1 and 2-.
-- Check if alignment bushings -3 through 6- are inserted at the locations in the guide frame as shown in the illustration.
NOTE:
Replace any bolts that were tightened with an additional turn.
-- Insert the long bolts in the inner row of the guide frame.
-- Tighten the bolts in steps in the sequence shown:
| Step | Bolts | Tightening Specification/Additional Turn |
|---|---|---|
| 1 | -1 to 16- | 50 Nm |
| 2 | -1 to 16- | Tighten 90° additional turn |
| 3 | -17 to 31- | 20 Nm |
| 4 | -17 to 31- | Tighten 90° additional turn |
- 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
| Letter on Guide Frame | Color of Bearing | |
|---|---|---|
| R | = | Red |
| G | = | Yellow |
| B | = | Blue |
| S | = | Black |
- 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 transmission flange of crankshaft by a row of letters. The first letter of the row of letters represents bearing "1", he second letter is for bearing "2", tc.
| Letter on Crankshaft | Color of Bearing | |
|---|---|---|
| R | = | Red |
| G | = | Yellow |
| B | = | Blue |
| S | = | Black |