11 14 110 Removing and Installing Lower Timing Case Cover

11 14 110 Removing and installing lower timing case cover (N74)

Special tools required:





Necessary preliminary tasks:
^ Remove engine
^ Remove both cylinder heads
^ 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





Undo bolts in sequence (14 to 1).





Remove gear case cover (1) in forward direction if necessary using a plastic hammer (2).

Clean sealing surfaces with special tool 11 4 470.





Note:
Check jump guard for damage.

Release screw (1).

Tightening torque 11 14 1AZ.

Remove jump guard (2).





Remove beaded metal gaskets (1,2 and 3).

Clean all sealing surfaces with special tool 11 4 470.

Installation:
Replace beaded metal gaskets (1, 2 and 3).





Release screws along lines (1).

Remove coolant cap (2).

Note:
Graphics show N63.





Installation:
Replace seal (1).





Installation:
For safety reasons, the coolant supply pipe (1) must be replaced during the scope of gear case cover work (internal leakage).

Drive out coolant pipe (1) in direction of arrow with special tool 23 1 040.

Note:
Picture shown without end cover for V-chamber.

The end cover does not have to be removed.





Fit beaded metal gaskets (1,2 and 3).

Coat coolant pipe with lubricant (Circo Light) and move up to limit position.

Installation:
Replace beaded metal gaskets (1, 2 and 3).





Fit timing-chain cover.

Insert all screws in sequence (1 to 14) and initially tighten to approx. 5 Nm.

Tighten all bolts in sequence (1 to 14).

Tightening torque: 11 14 2AZ.

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

Carefully wipe off protruding PU material.





Replace radial shaft seal in gear case cover at bottom.

Assemble engine.