11 37 005 Removing and installing/replacing eccentric shaft (N12)

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

Special tools required:

11 4 481

Necessary preliminary tasks:

Release screw (2) on magnet wheel (1).

Tightening torque 11 37 5AZ

Fig 1: Identifying Screw And Magnet Wheel

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Installation:

Pay attention to journal and groove on intermediate shaft and magnet wheel.

Fig 2: Identifying Magnet Wheel

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IMPORTANT: Magnet wheel (1) is extremely magnetic.
After removing, protect magnet wheel (1) against metal chips by placing it in a plastic bag (2) with a seal.

Fig 3: Identifying Plastic Bag And Magnet Wheel

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Adjust eccentric shaft to minimum lift (1).

Fig 4: Identifying Minimum Lift

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Release screws on all bearing caps (1).

Fig 5: Release Screws On All Bearing Caps (1)

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All bearing caps are marked with numbers from (6 to 10); set down in neat order in special tool 11 4 481.

Fig 6: Bearing Cap Numbers (6-10)

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Remove intermediate shaft (1).

Fig 7: Identifying Intermediate Shaft (1)

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IMPORTANT: If one or more needle bearings are faulty, the complete eccentric shaft must be replaced.
Magnet wheel (2) is highly magnetic. No metal chips must stick to the magnet wheel (2), replace if necessary.

Check all needle bearings (3) of eccentric shaft (1) for ease of movement.

Fig 8: Identifying Magnet Wheel, Needle Bearings And Eccentric Shaft

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Bearing cap number 10 is provided with a stop.

Lubricate all bearing caps with engine oil.

All bearing caps (1) are identified with numbers from (6 to 10).

Tightening torque 11 12 6AZ

Adjust eccentric shaft minimum lift.

Fig 9: Identifying Bearing Caps

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Check eccentric shaft for ease of movement.

Assemble engine.