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Piston and Connecting Rod Assemble (LDK, LHU)

Piston and Connecting Rod Assemble (LDK, LHU)



Special Tools

• EN-46745 Piston Pin Clip Remover/Installer

• EN-46745-4 Piston Pin Clip Remover/Installer Adapter


For equivalent regional tools, refer to Special Tools (LDK, LHU) .



1.
Note

Install the piston onto the connecting rod with the arrow oriented toward the front of the engine.


Assemble the connecting rod (2) and the piston (1).


2.
Warning

Install the piston pin retainers correctly in the retaining groove during assembly in order to avoid engine damage.


Use the following procedure to assemble the piston pin and the retainer:


2.1. Coat the piston pin with oil.

2.2. Using the EN-46745 installer (1) and the EN-46745-4 adapter , install one side of one piston pin retainer into the retaining groove. Rotate the retainer until it is fully seated in the groove.

2.3. Install the connecting rod and the piston pin. Push the piston pin until it bottoms in the previously installed retainer.

2.4. Using the EN-46745 installer and the EN-46745-4 adapter , install the second piston pin retainer.

2.5. Ensure that the piston moves freely.

3.
Warning

Use a piston ring expander to install the piston rings. The rings may be damaged if expanded more than necessary.


Install the following components of the oil control ring assembly - bottom ring (6):


3.1. The expander (5)

3.2. The lower oil control ring (4)

3.3. The upper control ring (3)

4. Install the lower compression ring - second ring (2). Place the manufacturer's mark facing up.

5. Install the upper compression ring - top ring (1).