REMOVING ACOUSTIC COVER (N62/N62TU)
Unfasten screws.
Raise acoustic cover (1) and remove towards front.
Fig. 108: Identifying Acoustic Cover
REMOVING AND INSTALLING TOP LEFT TIMING CASE COVER (N62/N62TU)
(cylinder bank 5 to 8)
Necessary preliminary tasks:
Release screw, remove holder (1).
Remove line (2) from holder.
Fig. 109: Locating Line From Holder
Release screws (1 and 2).
Remove timing case cover (3).
Fig. 110: Identifying Timing Case Cover
Installation:
Free sealing face (2) on timing case cover (3) of seal debris and clean.
Fig. 111: Identifying Sealing Face On Timing Case Cover
Installation:
Check adapter sleeves (1) for damage and correct installation position; replace if necessary.
Free sealing face (2) of seal debris and clean.
Fig. 112: Identifying Adapter Sleeves And Sealing Face
Installation:
Replace gasket (1) and check for correct installation position.
Fig. 113: Identifying Timing Case Cover Gasket
REMOVING AND INSTALLING TOP RIGHT TIMING CASE COVER (N62/N62TU)
(cylinder bank 1 to 4)
Necessary preliminary tasks:
Remove cable from holder.
Fig. 114: Identifying Cable From Holder
Release screws (1 and 2).
Remove timing case cover (3).
Fig. 115: Identifying Timing Case Cover And Screw
Installation:
Free sealing face (2) on timing case cover (3) of seal debris and clean.
Fig. 116: Identifying Sealing Face On Timing Case Cover
Installation:
Check adapter sleeves (1) for damage and correct installation position; replace if necessary.
Free sealing face (2) of seal debris and clean.
Fig. 117: Identifying Adapter Sleeves And Sealing Face
Installation:
Replace gasket (1) and check for correct installation position.
Fig. 118: Identifying Timing Case Cover Gasket
REMOVING AND INSTALLING BOTTOM TIMING CASE COVER (N62/N62TU)
Special tools required:
Necessary preliminary tasks:
Release screws along lines (1).
Remove timing case cover (2) towards front.
Fig. 119: Identifying Timing Case Cover And Screw
Drive out water pipe (1) with special tool 23 1 040 at cutout (2) towards front.
Installation:
Replace water pipe (1) and sealing ring (3).
Fig. 120: Identifying Water Pipe And Sealing Ring
Installation:
Clean sealing surfaces and replace seal.
Install timing case cover, insert all screws and initially tighten to approx. 5 Nm.
Fully tighten all screws in alternate sequence.
Tightening torque 11 14 1AZ.
IMPORTANT: Once all screws have been tightened down, retighten them in a second operation.
Replace radial seal in timing case at bottom.
REPLACING RADIAL SHAFT SEAL IN TIMING CASE COVER AT BOTTOM (N62/N62TU)
Special tools required:
Necessary preliminary tasks:
Position lever (2) for removing radial shaft seal (1) horizontally and install special tool 11 9 410.
Fig. 121: Identifying Radial Shaft Seal With Special Tool (11 9 410)
Turn lever (2) so that it grips behind radial shaft seal (1).
Turn bolt (3) on special tool 11 9 410 to remove radial shaft seal (1).
Fig. 122: Identifying Radial Shaft Seal, Bolt With Special Tool (11 9 410)
NOTE: Radial shaft seal may only be supported with a "support sleeve".
If the radial shaft seal (1) is stored for longer than six months without the support sleeve (2), its operational reliability can no longer be guaranteed and it must not be reused.
IMPORTANT: The sealing lip of the radial shaft seal 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).
Fig. 123: Identifying Support Sleeve From Radial Shaft Seal
Fit radial shaft seal (1) on timing case cover.
Fig. 124: Identifying Radial Shaft Seal On Timing Case Cover
Using special tool 11 9 420 and central bolt (3), install radial shaft seal flush with timing case cover.
Fig. 125: Identifying Central Bolt With Special Tool (11 9 420)
REPLACING CRANKSHAFT RADIAL SHAFT SEAL (N62/N62TU)
Special tools required:
(transmission side)
Necessary preliminary tasks:
Release screws (2).
Release screws (1).
Carefully remove end cover.
Fig. 126: Identifying End Cover And Screw
IMPORTANT: The sealing lip of the radial shaft seal is highly sensitive and must not be kinked.
Do not touch the sealing lip with your fingers.
NOTE: Support sleeve (2) is included in scope of delivery.
If the radial shaft seal (1) is stored for longer than six months without the support sleeve (2), its operational reliability can no longer be guaranteed and it must not be reused.
The support sleeve (2) remains in the radial shaft seal and is used as a slip sleeve in the installation described later.
Fig. 127: Identifying Support Sleeve And Radial Shaft Seal
IMPORTANT: Special tool 11 2 390 must not be used.
When the radial shaft seal is installed, only the support sleeve included in the scope of delivery may be used as a slip sleeve.
Fig. 128: Identifying Precaution For Special Tool (11 2 390)
NOTE: The radial shaft seal can only be replaced completely with the end cover.
The gasket is an integral part of the end cover and cannot be replaced individually.
Installation:
Check dowel sleeves (1) for damage and correct installation position.
Keep sealing faces clean and free of oil.
Coat contact points on joint along oil sump with Drei Bond 1209.
Fig. 129: Identifying Dowel Sleeves
Installation:
Lightly oil running surface of crankshaft.
Fit end cover (1) with support sleeve (2) on crankshaft and push on carefully.
Fig. 130: Identifying End Cover With Support Sleeve
Insert screws (1) and initially tighten without play.
Insert screws (2) and initially tighten without play.
Tighten down screws (1).
Tighten down screws (2).
Fig. 131: Identifying End Cover And Screw