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Remove/install intermediate gear for engine control - AR05.10-P-7620CD

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

Fig 1: Intermediate Gear For Engine Control Remove/Install Components
G09974284Courtesy of MERCEDES-BENZ USA
MODIFICATION NOTES

9.11.10 Check intermediate gear for damage and wear, added Operation step 4  
REMOVING Removing     
DANGER Risk of injury  caused by moving parts that can pinch, crush  or, in extreme cases, even sever  extremities No parts of the body or limbs should be within the operating range of the mechanism when moving components. AS00.00-Z-0009-01A
1 Remove timing case cover   AR01.40-P-8000CD
2 Remove screws/bolts (1)    
3 Pry off intermediate gear (2) using a suitable tool    
INSPECT Checking     
4 Check intermediate gears (2) for damage and wear IMPORTANT Replace intermediate gears (2) if necessary.  
INSTALLING Install     
5 Plug intermediate gear (2) into bores (3) IMPORTANT Only as far as the gear (5) is still not engaged.  
6 Pretension intermediate gear (2) IMPORTANT Tension gear (5) using a suitable plastic wedge (6) through applying short pressure anti-clockwise and press at the same time in the bore (3). The gear (5) must be tensioned anti-clockwise until the gears (4, 5) align with each other.  
7 Screw in screw/bolts (1) TORQUE SPECIFICATION *BA05.10-P-1001-02A 
8 Check spring preload IMPORTANT The gear (5) must be zero clearance.  
9 Check basic setting of balance shaft IMPORTANT Adjust balance shafts if necessary. See: ↓ AR03.20-P-3637CD
    Set basic position of the balance shaft AR03.20-P-3638CD
10 Check basic setting for camshafts. IMPORTANT Adjust camshafts if necessary. See: ↓ AR05.20-P-6020CD 
    Set basic position of camshafts AR05.20-P-6010CD 
11 Install timing case cover   AR01.40-P-8000CD
GEARWHEEL DRIVE

Number Designation Engine 651
BA05.10-P-1001-02A Screw/bolt, intermediate gear to crankcase Nm 80
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