Pic. 2.17. Piston rings and piston pin: 1 - section of the upper ring; 2 – section of the second ring; 3 - cross section of the oil scraper ring; 4 - side rings; 5 - expander
The following piston rings are used. top barrel ring. The second cone with a groove. oil scraper ring - two rings and an expander. The piston pin is made of chromium steel alloy, which has increased rigidity (pic. 2.17).