Power Take-Off Drive Chain

Power Take-Off Drive Chain

Special tools, testers and auxiliary items required

• Key (T40049)

• Locking Pin (T40071)

• Locking Pin (T40069)

• 8 mm drill bit

Removing

• Transmission removed.

- Remove timing chain lower cover. Refer to => [ Lower Timing Chain Cover ] Lower Timing Chain Cover.


The drive chain could be destroyed.

• Place a washer under the bolt heads to prevent the bolts from pinching the drive chain.

- Install the (T40049) at the rear of the crankshaft using two old drive plate bolts - arrows -.






- Remove the locking bolt - arrow - for the Top Dead Center (TDC) marking from the cylinder block.






- Rotate the crankshaft in the direction of engine rotation to "TDC".

• The crankshaft locating hole is difficult to find when the engine is installed.

• Rotate the engine until the small notch - 1 - on the vibration damper aligns at the left of the housing separation point - 2 - between the cylinder block and the guide frame. This makes it easier to install the (T40069).






• The marking on the vibration damper is only there to help. The exact "TDC" location is only reached by installing the (T40069).

- Install the (T40069) in the hole and tighten to 20 Nm. Turn the crankshaft - 1 - back and slightly to completely center the bolt, if necessary.






- Press the chain tensioner guide rail in direction of - arrow - and secure chain tensioner using a (T40071).







Risk of destroying due to the reversed running direction on a used drive chain.

• Mark the drive chain running direction with arrows using paint for installation later. Do not mark the chain using a punch, notch or similar.

- Remove the bolts - 3 - and the balance shaft chain sprocket.

- Remove the bolts - 1 and 2 - and the chain tensioner with the drive chain.

Installing

• For the correct tightening specifications, refer to => [ Power Take-Off Drive Chain Overview ] Power Take-Off Drive Chain Overview.

• Secure crankshaft - 1 - in "TDC" position using (T40069).






• Replace the O-ring for the "TDC" marking locking bolt.

- Install the chain tensioner with the drive chain and the balance shaft chain sprocket.






- To protect against cuts, wrap the point and the cutting edges on a 8 mm drill bit with insulating tape.

- Secure the balance shaft in the "TDC" position using an 8 mm diameter drill bit - 2 -.

• The slots in the balance shaft sprocket must be at the middle position in relation to the threaded holes of the balance shaft. If necessary, adjust chain by one tooth.

- Tighten the chain tensioner bolts.

- Loosely install the chain sprocket bolts - 1 and 3 -.

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

- Remove the (T40071) to release the chain tensioner.

- Press against the chain tensioner guide rail - arrow - using a screwdriver while tightening the chain sprocket bolts - 1 and 3 -.

- Remove the drill bit - 2 - from the balance shaft.

Install in reverse order of removal paying attention to the following:

- Install the "TDC" marking locking bolt. => [ Marking Locking Bolt - Tightening Specification ] Service and Repair.

- Install timing chain lower cover. Refer to => [ Lower Timing Chain Cover ] Lower Timing Chain Cover.