Replace timing chain · ar0510p7601cd · Mercedes-Benz WIS

AR05.10-P-7601CD

Replace timing chain

23.4.12

ENGINES 651 in MODELS 166, 172, 204, 207, 212, 218, 221

P05.10-2447-12

1 Timing chain

Modification notes

11.5.11

Information for installation position of the timing chain, added

Operation step 5

	Removing
1	Remove cylinder head cover trim
2	Remove cylinder head cover		AR01.20-P-5014CD
3	Remove chain tensioner		AR05.10-P-7800CD
4	Disconnect timing chain (1)	 Before separating old timing chain (1), check both camshaft sprockets for grooves and pitting, if necessary, remove camshafts and replace defective camshaft sprocket. See: 	AR05.10-P-7601-01CD
		Remove/install camshafts	AR05.20-P-6992CD
		 Cover over timing case recess with a clean cloth.
		 Case	*602589009800
		 Chain separating tool	*602589023300
		 Thrust spindle	*602589046300
		 Pressure pins	*602589046301
	Install
5.1	Draw in timing chain (1)	With code (B03) ECO start/stop function
		 Always remove the  assembly connecting link, the  assembly outer plate and the  assembly locking element after pulling in the new timing chain (1). Damage can occur on the engine otherwise.	AR05.10-P-7601-04CD
		The engine must not be turned back. The timing chain can skip otherwise and can cause engine damage.
		Turn engine using a suitable tool.
		 Case	*602589009800
		 Assembly inserts	*651589046300
5.2	Draw in timing chain (1)	Except code (B03) ECO start-stop function
		 It is essential to remove  assembly connecting link,  assembly outer plate and  assembly locking element after pulling in the new timing chain (1) in order to avoid damage to the engine.	AR05.10-P-7601-04CD
		 Crank engine in direction of rotation. The bores (arrow) of the new timing chain (1) must point outwards.
		Turn engine using a  counterholder.
		 Case	*602589009800
		 Counterholder	*651589004000
		 Assembly inserts	*651589046300
6	Rivet timing chain (1)	 Cover over timing case recess with a clean cloth.	AR05.10-P-7601-02CD
			*BA05.10-P-1004-01Q
		 Case	*602589009800
		 Riveting tool	*642589003300
		 Assembly inserts	*651589046300
7	Install chain tensioner		AR05.10-P-7800CD
	Checking
8	Check basic setting for camshafts.	 Set up basic position for camshafts as required. See: 	AR05.20-P-6010CD
		Set basic position of camshafts	AR05.20-P-6020CD
9	Install cylinder head cover		AR01.20-P-5014CD
10	Install trim panel of cylinder head cover