Pic. 2.361. Scheme of installation of compression rings
Install the expander and two oil scraper ring expanders. Use a piston ring expander to install two compression rings; moreover, the marks of the rings should be facing up (pic. 2.361).
Pic. 2.362. Scheme of the correct installation of piston rings
Install the piston rings in the grooves so that their locks are located as shown in Figure 2.362.