Contents: Removal ↡ Installation ↡
Removal
1. Remove the cylinder head cover 1 (figure 3.8a,b).
2. Remove clamp 3 and rocker arm assembly 4.
On engines up to number 039739
3. Remove the double-sided rocker arms 5 (figure 3.8a). Measure the protrusion A of the guide pin 7 above the cylinder head. It should be 25.1-25.5 mm.
Original material on the website [Mercedesman.ru]
On engines starting with number 039740
4. Remove the 7 valve stem covers and the 5 intake valve rocker arms (figure 3.8b).
Installation
5. Installation is carried out in the reverse order of removal.
Figure 3.8a. Rocker arms and rocker shaft for engines up to number 039739: 1 - Cylinder head cover; 2 - Bolt; 3 - Clamp; 4 - Rocker arms and rocker shaft assembly; 5 - Double-sided rocker arm; 6 - Push rod; 7 - Rocker arm guide pin; A - Protrusion of the guide pin above the cylinder head.
Figure 3.8b. Rocker arms and rocker shaft for engines starting with number 039740: 1 - Cylinder head cover; 2 - Bolt; 3 - Clamp; 4 - Rocker arms and rocker shaft assembly; 5 - Double-sided rocker arm; 6 - Push rod; 7 - Cover.