BMW 7 Series: Housing Cover

REMOVING AND INSTALLING LOWER TIMING CASE COVER (N63)

Necessary preliminary work

• Remove ENGINE
• Remove both cylinder head covers
• Remove LOWER OIL SUMP SECTION
• Remove UPPER OIL SUMP SECTION
• Remove alternator BELT TENSIONER
• Remove VIBRATION DAMPER
• Remove COOLANT PUMP
• Remove ALTERNATOR
• Remove A/C COMPRESSOR
• Remove hub for VIBRATION DAMPER

Release screws along lines (1).

Remove timing case cover (2) towards front.

Clean sealing surfaces with special tool 11 4 470.

Fig. 86: Identifying Screws Along Lines And Timing Case Cover

NOTE: Check jump guard for damage.

Release screw (1).

Tightening torque 11 14 1AZ.

Remove jump guard (2).

Fig. 87: Identifying Jump Guard And Screws

Clean sealing surfaces with special tool 11 4 470.

Installation note: Preposition all bolts in timing case cover.

Replace beaded metal gaskets (1, 2 and 3)

Fig. 88: Identifying Beaded Metal Gaskets

Fit timing case cover (2).

Initially tighten all bolts to approx. 5 Nm.

Fully tighten all bolts in alternate sequence.

Tightening torque 11 14 2AZ.

Installation note: Wait for PU material to emerge at sealing joints.

Carefully wipe off protruding PU material.

Fig. 89: Identifying Screws Along Lines And Timing Case Cover

Replace RADIAL SHAFT SEAL in gear case cover at bottom.

Assemble engine.

REMOVING AND INSTALLING TIMING CASE COVER, TOP LEFT (N63)

Timing case cover, cylinders 5-8

Necessary preliminary work

• Remove both SOLENOID VALVES on left side

Release screws (1).

Tightening torque 11 14 3AZ.

Remove timing case cover (2).

Installation note:

Replace gasket

Fig. 90: Identifying Timing Case Cover And Screws

Assemble engine.

REMOVING AND INSTALLING TIMING CASE COVER, TOP RIGHT (N63)

Gear case cover, cylinders 1-4

Necessary preliminary work

• Remove both SOLENOID VALVES on right side

Release screws (1).

Tightening torque 11 14 3AZ.

Remove timing case cover (2).

Installation note:

Replace gasket

Fig. 91: Identifying Timing Case Cover And Screws

Assemble engine.

REMOVING AND INSTALLING/SEALING REAR COOLANT END COVER (N63)

Notes

WARNING: Risk of scalding! Only perform this work after engine has cooled down.

Recycling

Catch and dispose of drained coolant in a suitable collecting vessel.

Observe country-specific waste disposal regulations.

Necessary preliminary work

• Remove FLYWHEEL
• Drain COOLANT

Release all screws in area (1).

Tightening torque 11 14 5AZ.

Remove end cover.

NOTE: Clean sealing surfaces with special tool 11 4 470.

Fig. 92: Identifying End Cover Screws Area

Installation note:

Replace profile seal (1)

Fig. 93: Identifying Profile Seal

Assemble engine.

REPLACING CRANKSHAFT RADIAL SEAL ON TRANSMISSION SIDE (N63)

IMPORTANT: The radial crankshaft seal can only be replaced completely with the end cover.

The radial crankshaft seal is an integral part of the end cover and can not be replaced individually.

Necessary preliminary work

• Drain off engine oil
• Remove FLYWHEEL

Release screws (1).

Unfasten screws (2).

Carefully remove end cover with radial crankshaft seal.

Fig. 94: Identifying Radial Crankshaft Seal End Cover Screws

NOTE: Support bush (2) is included in delivery specification.

Radial crankshaft seal (1) must not be reused in this eventuality! Support bush (2) remains in the radial crankshaft seal (1) and is used as a slip bush during described installation described below.

Fig. 95: Identifying Support Bush And Radial Crankshaft Seal

IMPORTANT: The sealing lip of the radial crankshaft seal (1) is highly sensitive and must not be kinked.

IMPORTANT: Special tool 11 2 390 must not be used.

When the radial crankshaft seal is installed, only the support bush included in the delivery specification may be used as a slip bush.

Fig. 96: Precaution - Special Tool 11 2 390 Must Not Be Used

Installation note: Check fitting sleeves (1) for damage and correct installation position.

Clean sealing surface (2) so that it is free from oil and grease.

Coat contact points on joint along oil sump (see arrows) with Drei Bond 1209.

Fig. 97: Identifying Fitting Sleeves And Sealing Surface

Installation note: Lightly oil running surface of crankshaft.

Fit end cover (1) with support bush (2) on crankshaft and push on carefully.

NOTE: Illustration shows (N62TU).

Fig. 98: Identifying End Cover And Support Bush

Insert screws (2) and initially tighten without play.

Insert screws (1) and initially tighten without play.

Tighten down bolts (2) from inside outwards.

Tighten down screws (1) from inside outwards.

Tightening torque 11 14 4AZ.

Fig. 99: Identifying Radial Crankshaft Seal End Cover Screws

Assemble engine.

REPLACING RADIAL SHAFT SEAL IN LOWER TIMING CASE COVER (N63)

Necessary preliminary work

• Removing VIBRATION DAMPER

Position all levers (2) horizontally to pull off radial shaft seal (1).

Turn back spindle of special tool 11 9 410 until all levers (2) can be positioned on sealing lip.

Fig. 100: Positioning All Levers Horizontally To Pull Off Radial Shaft Seal

Turn all levers (2) so that they grip behind radial shaft seal (1).

Turn spindle (3) on special tool 11 9 410 to remove radial shaft seal (1).

Fig. 101: Turning Spindle On Special Tool 11 9 410 To Remove Radial Shaft Seal

NOTE: Radial shaft seal (1) may only be supported with "support sleeve" (2).

If the radial shaft seal (1) is stored for more than six months without the support sleeve (2), its operational reliability will no longer be guaranteed.

Radial shaft seal (1) must not be reused in this case!

Fig. 102: Identifying Radial Shaft Seal And Support Sleeve

IMPORTANT: The sealing lip of the radial shaft seal (1) is highly sensitive and must not be kinked under any circumstances.

Do not touch the sealing lip with your fingers.

Remove support sleeve (2) from radial shaft seal (1).

Fit radial shaft seal (1) on lower gear case cover.

Fig. 103: Identifying Radial Shaft Seal On Lower Gear Case Cover

Using special tool 11 9 420 and central bolt (3), screw radial shaft seal into lower gear case cover until flush.

Fig. 104: Identifying Special Tool And Central Bolt

Assemble engine.

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