11 14 110 Removing and installing, sealing/replacing rear timing case cover (B48, B46)

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Special tools required:

Attention !

Engines with surface sealant:

Application time of sealing compound maximum 12 min.

Necessary preliminary tasks:

Remove ENGINE WITH TRANSMISSION
Mount engine on ASSEMBLY STAND
Remove FLYWHEEL
Remove CYLINDER HEAD .
Remove OIL SUMP

REMOVAL:

Attention !

Magnet wheel (1) is magnetic.

Keep magnet wheel (1) in a plastic bag away from debris.

Remove magnet wheel (1) from crankshaft.

Fig 1: Magnet Wheel

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Release screws (1).

Remove coolant line (2).

Fig 2: Coolant Line And Screws

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Unlock connector (1) and pull it off the crankshaft sensor.

Fig 3: Crankshaft Sensor Connector

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Release screws in the sequence 11 to 1.

Fig 4: Timing Case Cover Screws Loosening/Tightening Sequence

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Loosen the timing case cover with a screwdriver (1) in the direction of the arrow.

Fig 5: Loosening Timing Case Cover With Screwdriver

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Loosen the timing case cover with a screwdriver (1) in the direction of the arrow.

Remove the timing case cover.

Fig 6: Removing Timing Case Cover

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Attention !

Do not use any metal-cutting tools (e.g. emery cloth).

Remove gasket remnants from the crankcase with special tool 11 4 470 .

Check that fitting sleeves (2) are correctly fitted, replace if necessary.

Fig 7: Fitting Sleeves

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INSTALLATION:

Attention !

Damage to the crankshaft seal.

Touching the sealing lip (inner) and oiling the crankshaft seal will destroy it.

Do not touch the sealing lip (inner) of the crankshaft seal.
Do not oil the crankshaft seal.
Install the crankshaft seal dry.

When replacing the rear timing case cover:

NOTE: Application time of sealing bead (1) max. 12 min.

Thickness of sealing bead: 1.5 to 2.0 mm.

Apply the sealing bead (1) at the positions indicated (see illustration) on the inside of the timing case cover.

Fig 8: Applying Sealing Bead On Inside Of Timing Case Cover

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Sealing bead (1): use SEALING COMPOUND 2.2 .

Preassemble special tool 11 8 815 on crankshaft.

Mount the timing case cover with crankshaft seal (1).

Fig 9: Installing Special Tool (11 8 815) On Crankshaft

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Insert bolts.

Tighten bolts in the sequence 1 to 11.

Tightening torque: 11 14 1AZ .

Fig 10: Timing Case Cover Screws Loosening/Tightening Sequence

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When reinstalling the timing case cover:

Support the timing case cover (1) from below.

Set the inner punch in the crankshaft seal (2).

Drive the crankshaft seal (2) outwards.

Fig 11: Driving Crankshaft Seal Outward

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NOTE: Application time of sealing bead (1) max. 12 min.

Thickness of sealing bead 1.5 to 2.0 mm.

Remove the gasket remnants from the timing case cover with the special tool 11 4 470 .

Fig 12: Applying Sealing Bead On Inside Of Timing Case Cover

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Apply the sealing bead (1) at the positions indicated (see illustration) on the inside of the timing case cover.

Sealing bead (1): use SEALING COMPOUND 2.2 .

Mount the timing case cover without the crankshaft seal.

Insert bolts.

Tighten bolts in the sequence 1 to 11.

Tightening torque: 11 14 1AZ .

Fig 13: Timing Case Cover Screws Loosening/Tightening Sequence

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Position special tool 11 8 815 on crankshaft.

Fig 14: Positioning Special Tool (11 8 815) On Crankshaft

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Attention !

Damage to the crankshaft seal.

Touching the sealing lip (inner) and oiling the crankshaft seal will destroy it.

Do not touch the sealing lip (inner) of the crankshaft seal.
Do not oil the crankshaft seal.
Install the crankshaft seal dry.

Carefully slide the crankshaft seal (1) straight off the special tool 11 8 815 using a rotational movement until the crankshaft seal is positioned parallel on the timing case cover.

Remove special tool 11 8 815 .

Fasten special tool 11 9 182 with special tool 11 9 184 on the crankshaft.

Fig 15: Fastening Special Tool (11 9 182) With Special Tool (11 9 184) On Crankshaft

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Prepare special tool 11 9 181 for installation.

Connect special tool 2 360 215 onto special tool 11 9 181 .

Fig 16: Connecting Special Tool (2 360 215) Onto Special Tool (11 9 181)

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Draw in crankshaft seal with special tools 11 9 181 and 2 360 215 in conjunction with special tool 11 9 183 .

Fig 17: Drawing In Crankshaft Seal With Special Tools (11 9 181) And (2 360 215)

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Screw in crankshaft seal with special tool 11 9 183 to limit position.

Fig 18: Screwing Crankshaft Seal With Special Tool (11 9 183)

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Check O-ring (1) of coolant line (2) for damage.

In case the O-ring is faulty, the coolant line (2) needs to be replaced.

Fig 19: Checking O-Ring Of Coolant Line For Damage

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Install coolant line (2).

Tighten down screws (1).

Fig 20: Coolant Line And Screws

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Connect connector (1) to crankshaft sensor and lock.

Fig 21: Crankshaft Sensor Connector

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NOTE: Check the fitting sleeve for damage.

Note the installation position of the magnet wheel.

Position magnet wheel (1) on crankshaft.

Fig 22: Magnet Wheel

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