Disconnect timing chain

AR05.10-D-7601-01S

Disconnect timing chain

Engine

642 in model 470, 471

Engine

642.896 ## as of 711428 in model 906

with code MP5 (Engine version Euro 5)

except code XM0 (Facelift)

Engine

642.896 ## as of 711428 in model 906

with code ZU7 (National version for Canada)

except code XM0 (Facelift)

Engine

642.896 ## as of 711428 in model 906

with code ZU8 (National version for USA)

except code XM0 (Facelift)

Engine

642.896 in model 906

with code XM0 (Facelift)

1

 Insert pressure pin (1) in  thrust spindle (2) and tighten union nut (3).

2

Tighten guide (4a) onto pilot bushing (4).

3

 Screw the thrust spindle (2) into pilot bushing (4).

4

Screw pilot bushing (4) by some revolutions into the  chain breaker tool (5).

  The pressure pin (1) must not project into the beveled tapered area of guide (4a).

5

Attach adapter (6) to the  chain breaker tool (5).

 The adapter (6) is held magnetically.

6

Attach the  hold-down tool (10) to the right cylinder head.

 Ensure correct seating.

7

Cover the timing case recess and cylinder head with a clean cloth.

 When carrying out work on the timing case recess or the cylinder head, protect them with a clean cloth to prevent small parts dropping down. Parts which have fallen into the timing case recess or cylinder head, must be removed.
Engine damage could occur otherwise.

8

 Fit chain breaker tool (5) on the timing chain (7) on right intake camshaft sprocket.

9

Screw pilot bushing (4) into  chain breaker tool (5) until the openings on the guide sleeve (4a) and the guide surround (arrow a) the timing chain bolt (8).

10

 Press thrust spindle (2) into pilot bushing (4) and press out the timing chain bolt (8).

11

 Remove thrust spindle (2) from pilot bushing (4) and remove  chain breaker tool (5).

12

Remove the timing chain bolt (8) from the guide (5a).

 Do not allow the timing chain bolt (8) to fall into the timing case recess.