Removing and Installing/Replacing Intermediate Levers

11 37 010 Removing and installing/replacing intermediate levers (N18)

Special tools required:





Warning!
Danger of injury!
A special tool is essential for opening the throttle return spring on the intermediate lever.





Necessary preliminary work:
^ Remove cylinder head cover.





Important!
Release screw with special tool only.11 9 571





Position special tool 11 9 571 on the bearing support of the counterbalance shaft so that it is seated on the intermediate shaft (see arrows).

If necessary, set the eccentric shaft (1) to minimum lift.





Clamp the throttle return spring with the knurled screw (1).





Make sure the throttle return spring is correctly seated on the special tool 11 9 571 (see arrow).





If the special tool 11 9 571 is correctly positioned, the throttle return spring (2) can be pressed back with lever (1).





Press lever (1) in direction of arrow on the special tool 11 9 571 until the safety hook (2) latches on special tool 11 9 571.





Warning!
Danger of injury! at throttle return spring.

The safety hook (1) must latch on special tool 11 9 571 (see arrow).





Release screw (1).





Prepare the special tool 11 9 572 on a vice (1).





Feed the special tool 11 9 571 out with a torsion spring (1).





Place the special tool 11 9 571 on special tool 11 9 572.





Warning!
Danger of injury! at throttle return spring.

Release the safety hook (1) on special tool 11 9 571.

Release lever (2) in direction of arrow.





Release knurled screw (1) in direction of arrow.

Remove throttle return spring (2).

Set all throttle return springs down on special tool 11 4 480 in order.





Release screw (2).

Release centering bolt (1).

Remove the locating plate and set down on special tool 11 4 480 in order.





Note:
Screw (1)

Fitting screw (2).

Installation note:
Observe screwing sequence





Remove the intermediate lever (3) towards top and set down on special tool 11 4 480 in order.

Installation note:
Uniform distribution must not be changed.





All intermediate levers are classified.

Values of 0 to 5 are installed.

Note:
A uniform distribution can only be calculated with the diagnosis system.





Installation note:
Installation of intermediate levers.

Position torsion spring (1) on special tool 11 9 571 (see arrows) and clamp with knurled screw.





Press torsion spring (1) in direction of arrow and position with lever on special tool 11 9 571.





Pretension torsion spring (1) with special tool 11 9 571 in direction of arrow.





Warning!
Danger of injury! at torsion spring.

The safety hook (1) must latch on special tool11 9 571 (see arrow).





Insert intermediate levers (3).

Installation note:
Make sure roller cam followers (2) are in correct installation position.





Installation note:
Make sure rollers of the intermediate lever are correctly guided in guide block.

Install guide block.

Insert fitting screw (1).

Insert bolt (2).

Join screws (1 and 2) to 5 Nm.

Release screws (1 and 2) back by 90°.





Pretension guide block (1) with special tool 11 9 573.

Secure fitting screws of guide block (1).

Tightening torque: 11 37 1AZ.

Secure screw on guide block (1).

Tightening torque: 11 37 2AZ.





Feed in throttle return spring (1) with special tool 11 9 571 and position.





Secure screw (1) of throttle return spring.

Tightening torque: 11 37 3 AZ.





Installation note:
Insert throttle return spring (2) in intermediate lever (1) (see arrow).

Check intermediate lever (1) and roller cam follower (3) again for correct installation position.





Remove all special tools.

Assemble engine.