Assembly disassembly «piston-rod»

1. Check the fit of the connection «piston-piston pin», trying to move the piston «back and forth» on the piston pin in a direction perpendicular to the axis of the piston pin. If there is noticeable play, replace the entire assembly.



2. Remove piston rings.

A) special tool (expander or screwdriver) remove both compression rings.



b) Manually remove the oil scraper elements (scrapers and ring expander).

Note: Arrange the rings in the correct order.

3. Disconnect the connecting rod from the piston.

A) Using a screwdriver, remove the circlips.



b) Gradually heat up the piston to a temperature of 80 - 90°C.

V) Using a plastic-tipped hammer and copper rod, knock out the piston pin and remove the connecting rod.

Note:

• If necessary, tag the piston and connecting rod to ensure correct assembly.
• Do not dismantle the piston and piston pin.
• Lay out the parts of the piston group as a set.