Power Take-Off Drive Chain, Removing And Installing

WARNING: This page is about a different variant/trim than selected.

Special tools and workshop equipment required

Locking Pin 3242
Diesel Injection Pump Locking Pin 3359
Crankshaft Key T40049
3.3 mm diameter drill bit

Removal

The transmission is removed.

-- Remove the timing chain cover lower section. Refer to LOWER TIMING CHAIN COVER, REMOVING AND INSTALLING .

-- Attach the Crankshaft Key T40049 the back of the crankshaft using two old drive plate bolts -arrows-.

Fig 1: Identifying Key T40049 At Rear On Crankshaft And 2 Old Bolts For Dual-Mass Flywheel

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-- Remove the bolt -arrow- for the "TDC" marking from the upper part of the oil pan by using a long hex socket wrench with a ball head.

Fig 2: Identifying Locking Bolt Of Upper Part Of Oil Pan

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-- Install the Crankshaft Holder3242 in the hole and tighten to 20 Nm. Turn the crankshaft -1- back and forth slightly to completely center the bolt, if necessary.

Fig 3: Identifying Crankshaft Holder 3242

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Fig 4: Identifying Chain Sprocket Bolts -Arrows-

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CAUTION:

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

Paint arrows to mark the power take-off drive chain running direction so it can be installed again.

-- Lock the rear balance shaft on the engine using the Diesel Injection Pump Locking Pin 3359 and loosen the bolts -arrows- for balance shaft chain sprocket.

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

Fig 5: Identifying Chain Tensioner, Drive Chain, And Balance Shaft -3- Chain Sprocket

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

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

Installation

Fig 6: Identifying Crankshaft Holder 3242

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Tightening specifications. Refer to POWER TAKE-OFF DRIVE CHAIN OVERVIEW .
Secure the crankshaft -1- in "TDC" position using the Locking Pin 3242.

-- Lock the rear balance shaft -arrow- to the engine with the Diesel Injection Pump Locking Pin 3359.

Fig 7: Identifying Rear Balance Shaft -Arrow- And Diesel Injection Pump Locking Pin 3359

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

Fig 8: Identifying Chain Tensioner, Drive Chain, And Balance Shaft -3- Chain Sprocket

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

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

NOTE:

Ignore -item 4- and -arrow-.

-- Install the chain sprocket bolts -arrows- loosely.

Fig 9: Identifying Chain Sprocket Bolts -Arrows-

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

-- Remove the drill from the alignment hole.

Fig 10: Push A Screwdriver In The -Direction Of The Arrow-

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

-- Remove the Diesel Injection Pump Locking Pin 3359.

Install in reverse order of removal. Note the following:

-- Install the timing chain cover lower section. Refer to LOWER TIMING CHAIN COVER, REMOVING AND INSTALLING .

-- Fill engine oil and check the oil level. Refer to Maintenance Booklet 406.