Piston

Piston

Special tools, testers and auxiliary items required

• Pilot Drift (VW 222 A)

• Engine and Transmission Holder (VAS 6095)

• Piston ring compressor, commercially available

Removing

• Engine secured to the (VAS 6095). Refer to => [ Engine, Securing to Engine and Transmission Holder ] Procedures

- Remove the cylinder head:

• => [ Left Cylinder Head, Removing ] Left Cylinder Head, Removing

• => [ Right Cylinder Head, Removing ] Right Cylinder Head, Removing

- Remove the upper oil pan. Refer to => [ Upper Oil Pan ] Upper Oil Pan.

- Mark the installed position of the connecting rod bearing cap for the cylinder for installing later. Refer to => [ Mark Connecting Rod ] Pistons and Connecting Rod Overview.

- Remove the connecting rod bearing cap.

- Remove the piston and connecting rod upward.

• Warm the piston to approximately 60 °C (140 °F) if it is difficult to move the piston pin.

- Remove the locking ring from the eye of the piston bolt.

- Remove the piston pin using (VW 222 A).

Installing

Install in reverse order, paying attention to the following:

• Tightening specification, refer to => [ Pistons and Connecting Rod Overview ] Pistons and Connecting Rod Overview.

• Replace bolts that are tightened to the specification.

- Coat the contact surfaces on the bearing shells with oil.

- Install the piston and piston ring compressor.

Installed position:

• Piston, refer to => [ Piston Installed Position ] Pistons and Connecting Rod Overview.

• Connecting rod, refer to => [ Connecting Rod Installation Position ] Pistons and Connecting Rod Overview.

- Install the connecting rod bearing cap according to the marking.

- Install the upper oil pan. Refer to => [ Upper Oil Pan ] Upper Oil Pan.

- Installing cylinder head. Refer to => [ Cylinder Head, Installing ] Cylinder Head, Installing.