Installing Rear Crankshaft Radial Sealing Ring - AR03.20-P-3063-01B

Engine 111.951 

Engine 111.955 

Engine 112.945 in model 463.209/232/233/244/245/250 

Engine 112 

Engine 113.962 in model 463.206/240/241/247/248/249/254 

Engine 113.982 in model 463.243/246 

Engine 113.993 in model 463.270/271 

Engine 113 

Engine 137 

Engine 275 

Engine 277 

Engine 279 

1. Deburr edge of mounting hole (arrow) around entire circumference for rear radial shaft sealing ring (4) and clean mounting hole (arrow).
2. Fit internal component (1) of installation tool to crankshaft (7).

   Courtesy of MERCEDES-BENZ USA

3. Carefully push rear radial shaft sealing ring (4) over the inner side (1) of the installation tool and the crankshaft journal.

   Ensure that the sealing lip (6) of the rear radial shaft sealing ring (4) is not damaged or compressed. Circumference (5) and sealing lip (6) of the rear radial shaft sealing ring (4) as well as the mating surface on the crankshaft (7) must be free of oil and grease.

   Courtesy of MERCEDES-BENZ USA

4. Position the outer part (2) of the mounting tool.

   Use outer part (2) with chamfer.

5. Screw in screw/bolt (3) until a resistance is felt.
6. Remove the mounting tool.

   Courtesy of MERCEDES-BENZ USA

7. Check installation position of the rear radial shaft sealing ring (4).

   The radial shaft sealing ring (4) must stand at right angles to the crankshaft (7).

   There will be no perfect sealing achieved otherwise.

   The clearance between the edge of the end cover (8) and the rear radial shaft sealing ring (4) must be approx. 1 mm (dimension a) around the entire circumference.

Courtesy of MERCEDES-BENZ USA