Servicing and maintenance works Setting work 58 © 2009 z Loosen lock nut. z Fit the rotary angle disc with socket wrench inset on the setting screw. z Fix magnet of the rotation angle disc. z Turn rotation angle disc clockwise to the stop (control piston without clearance) and set scale to zero. z Turn rotation angle disc anticlockwise until reaching the specified rotation angle: z Tighten locking nut. z Perform the setting procedure on every control piston. Control piston clearance 144° After setting the valve clearance, the control piston clearance should be set as follows: z Turn the crankcase until reaching valve overlap of the first cylinder.
Outlet valve is not yet closed, inlet valve begins to open. The cylinders to be set can be seen in the setting schematic. Set control piston clearance (with internal ex- haust gas recirculation EGR connected) 1 Lock nut 2 Setting screw 6