Piston pins and connecting rods (Scorpio 1)

1. Press out the piston pins using a press.

2. Place the connecting rods on a plate and check that they are not deformed.

3. Place fixture 21.014 in a vice and pull out its guide pin until it stops.

4. Install the piston with the "Front" sign in the same direction, as well as the connecting rod with an oil spray.

5. Insert the guide pin into the piston hole until it stops.

6. Press the piston pin into the hole in the foot on the opposite side of the piston so that its head is level with the inner edge of the foot.

7. Install a spacer sleeve in the fixture that matches the engine type.

8. Apply marks to the connecting rod head with a thermochrome pen (Faber-Castell 2815) and heat it until the mark changes to a color that matches the outer color of the pen. This means that the connecting rod head has heated up to the temperature required for pressing the pin into the head bushing (260–300°C).

9. Quickly move the connecting rod and place it inside the piston on the mounting shank. Insert the piston pin until it stops.

10. Wait until the connecting rod has cooled down and check that the piston is connected to the connecting rod correctly.

11. The connecting rods are not subject to wear during engine operation, however, in some cases, such as engine seizure, they may become deformed. This can be noticed visually, but if there is any doubt, the connecting rods can be checked and replaced if necessary.