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Piston, Connecting Rod, and Bearing Removal

Piston, Connecting Rod, and Bearing Removal



1. Install the crankshaft balancer bolt.

2. Set the pistons 1 and 4 to TDC in direction of engine rotation.

3.
Note

Note cylinder sequence.


Mark the connecting rod with the connecting rod bearing cover (1).


4. Remove the 4 connecting rod bearing caps bolts (2) of cylinder 1 and 4.


5. Remove the connecting rod bearing caps (1) and the connecting rod bearing (3).

6. Push the pistons 1 and 4 (1) out of the cylinder bore (2).


7.
Note

The shear surfaces of the con-rod and the con-rod bearing cover form a unique fit and must not be swapped or damaged. Do not lay down on the shear surfaces.


Remove the pistons 1 and 4 (1).

8. Turn crankshaft on crankshaft balancer through 180° in direction of rotation of engine.

9.
Note

Note cylinder sequence.


Mark the connecting rod with the connecting rod bearing cover (1).


10. Remove the 4 connecting rod bearing caps bolts (2) of cylinder 2 and 3.


11. Remove the connecting rod bearing caps (1) and the connecting rod bearing (3).

12. Push the pistons 2 and 3 (1) out of the cylinder bore (2).


13.
Note

The shear surfaces of the con-rod and the con-rod bearing cover form a unique fit and must not be swapped or damaged. Do not lay down on the shear surfaces.


Remove the pistons 2 and 3 (1).

14.
Note

Observe correct fitting position, observe alignment.


Remove the connecting rod bearing (1, 2).


15. Check the components. Refer to Piston, Connecting Rod, and Bearing Cleaning and Inspection .