Balance Shaft and Oil Pump Chain

Balance Shaft and Oil Pump Chain

Special tools, testers and auxiliary items required

• Crankshaft Holder (3242)

• Diesel Injection Pump Locking Pin (3359)

• Key (T40049)

• 3.3 mm Diameter Drill Bit

Removing

• Transmission is removed.

- Remove the drive plate. Refer to => [ Drive Plate ] Drive Plate.

- Remove the timing chain covers. Refer to => [ Timing Chain Covers ] Timing Chain Covers.

- Install the key (T40049) to the rear of the crankshaft using two used drive plate bolts - arrows -.






- Remove the plug - arrow - from upper oil pan.













Risk of injury when touching the Top Dead Center (TDC) hole with finger.

• Do not rotate the crankshaft - 1 -.

- Install the crankshaft holder (3242) in the hole and tighten it to 20 Nm. Rotate the crankshaft back and forth slightly to center the holder completely, if necessary.








Reversing the running direction of a used balance shaft and oil pump chain can destroy it.

• Paint arrows to mark the running direction of the chain so it can be reinstalled again, if necessary.

- Lock the rear balance shaft on the engine using the diesel injection pump locking pin (3359) and loosen the bolts - arrows - for balance shaft sprocket.

- To protect against cuts, wrap the point and the cutting edges of a 3.3 mm drill bit with insulating tape.






- Push the slide rail for the chain tensioner in the - direction of arrow - and then lock the chain tensioner using the 3.3 mm drill bit - 4 -.

- Remove the bolts - 1 and 2 - and remove the chain tensioner, sprocket - 3 - and balance shaft and oil pump chain.

Installing






• Tightening specifications, refer to => [ Balance Shaft and Oil Pump Timing Chain Overview ] Balance Shaft and Oil Pump Timing Chain Overview.

• Secure the crankshaft - 1 - in the TDC position using the crankshaft holder (3242).

- Lock the rear balance shaft - arrow - to the engine using the diesel injection pump locking pin (3359).






- Install the chain tensioner with the chain and the sprocket.






• The slots in the sprocket - 3 - must be in the center position to the threaded holes in the balance shaft.

- Tighten the chain tensioner bolts - 1 and 2 -.

• Ignore - 4 - and the - arrows -.

- Install the sprocket bolts - arrows - loosely.






• It must still be possible to rotate the sprocket on the balance shaft and it must not tilt.

- Remove the drill bit from the alignment hole.






- Push a screwdriver in the - direction of the arrow - against the chain tensioner guide rail while tightening the sprocket bolts - 1 -.

- Remove the diesel injection pump locking pin (3359) from the balance shaft.

Further installation is in the reverse order of removal. Note the following:

- Install the timing chain covers. Refer to => [ Timing Chain Covers ] Timing Chain Covers.

- Install the drive plate. Refer to => [ Drive Plate ] Drive Plate.

- Fill the oil and then check the level.