Disconnect timing chain - AR05.10-P-7601-01SXI

ENGINE 642 in MODEL 207, 212, 218 without CODE 927 (Emission control system with Euro 6 technology) 

ENGINE 642 in MODEL 221 

Fig 1: Identifying Thrust Spindle (602 589 04 63 00)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Pressure Pins (602 589 04 63 01)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Chain Separating Tool (602 589 02 33 00)

Courtesy of MERCEDES-BENZ USA

1. Insert pressure pin (1) in thrust spindle (2) and tighten union nut (3).
2. Screw thrust spindle (2) into pilot bushing (4).

   The pressure pin (1) must not project into beveled tapered area of pilot bushing (4).

3. Screw pilot bushing (4) into chain breaker tool (5).
   Fig 4: Pressure Pin, Thrust Spindle And Chain Breaker Tool

   Courtesy of MERCEDES-BENZ USA
4. Cover timing case recess and cylinder head with shop towels.

   Parts which have fallen into the timing case recess or in the cylinder head must be removed. Damage can occur on the engine otherwise.

5. Fit chain breaker tool (5) onto timing chain.
   Fig 5: Fitting Chain Breaker Tool Onto Timing Chain

   Courtesy of MERCEDES-BENZ USA
6. Screw pilot bushing (4) into chain breaker tool (5) until the openings on the pilot bushing (4) and the guide (5a) surround the timing chain bolt (6a).
7. Screw thrust spindle (2) into pilot bushing (4) and press out timing chain bolts (6a).
8. Remove timing chain bolt (6a) from the guide (5a).
9. Remove thrust spindle (2) from pilot bushing (4) and remove chain breaker tool (5).
   Fig 6: Removing Timing Chain Bolt From Guide

   Courtesy of MERCEDES-BENZ USA