LFD Rivet timing chain - AR05.10-P-7601-02LFD

ENGINE 642 in MODEL 207, 212, 218 with CODE 927 (Emission control system with Euro 6 technology) 

ENGINE 642 in MODEL 222 

Fig 1: Identifying Riveting Tool (642 589 00 33 00)

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Assembly Inserts (651 589 04 63 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Case (602 589 00 98 00)

Courtesy of MERCEDES-BENZ USA

The following special tools are needed: case, rivet press tool, assembly inserts

When carrying out work on timing case recess or on cylinder head, protect this with a clean rags to prevent small items dropping down. Parts which have fallen into the timing case recess or the cylinder head must be removed, otherwise engine damage can occur.

1. Absolutely remove assembly insert from camshaft sprocket of the left exhaust camshaft (4) to pull in the timing chain (2).

   The assembly insert only serves as an assembly aid and is not suitable for use when the engine is running.

2. Insert new riveted link (1) into the ends of the new timing chain (2).
   Fig 4: Inserting New Riveted Link Into The Ends Of The New Timing Chain

   Courtesy of MERCEDES-BENZ USA
3. Place assembly insert (8) with the digit F12 into the rivet press tool (5) and fix with a mounting screw.
4. Insert movable thrust piece (9) with digit D14 into the rivet press tool (5).
   Fig 5: Assembly Insert And Rivet Press Tool

   Courtesy of MERCEDES-BENZ USA
5. Place outer plate (10) into thrust piece (9) with digit D14.

   The outer plate (10) is retained magnetically.

   Fig 6: Placing Outer Plate Into Thrust Piece

   Courtesy of MERCEDES-BENZ USA
6. Place rivet press tool (5) in such away that the spacer bushing of the assembly insert (8) lies on the rolls of the timing chain (2).

   Ensure that screw/bolts on new rivet element (1) are flush with hole on the new outer link (10).

7. Screw in thrust spindle at rivet press tool (5) until solid resistance is present.

   When turning in the thrust spindle, ensure that the pins of the new riveted link (1) are led into the holes of the new outer plate (10).

8. Slightly unscrew the thrust spindle and remove rivet press tool (5).
   Fig 7: Rivet Press Tool, Assembly Insert And Thrust Piece

   Courtesy of MERCEDES-BENZ USA
9. Turn over movable thrust piece (9) with digit D14 on the riveted profile (arrow).
   Fig 8: Locating Thrust Piece Riveted Profile

   Courtesy of MERCEDES-BENZ USA
10. Place rivet press tool (5) exactly above center of a pin of the new rivet element pin (1).
11. Tighten thrust spindle on rivet press tool (5) with specified tightening torque.

    The pins on the rivet element (1) are riveted.

12. Slightly unscrew thrust spindle, position rivet press tool (5) at other pin on the new rivet element (1) and rivet in the same way.
13. Take off rivet press tool (5).
    Fig 9: Rivet Press Tool, Outer Link And Timing Chain

    Courtesy of MERCEDES-BENZ USA
14. Check riveting (arrows), re-rivet if required.
15. Remove hold-down tool on right cylinder head.
16. Disconnect cable tie on camshaft sprocket of the left exhaust camshaft (4).
    Fig 10: Locating Rivets

    Courtesy of MERCEDES-BENZ USA