4.4.13. Replacement of piston rings

Replacement of piston rings

1 — the Top compression ring
2 — the Lower compression ring
3 — the Oil scraper ring

4 — the Spiral spring of a dilator
8 — the Spring ring of a dilator
10 — Nippers


1. Measure gaps between rings and pistons and gaps in locks of rings (see Specifications).
2. Remove piston rings by means of nippers (10).
3. Measure width of piston rings.
4. Establish piston rings only with the identified width.
5. Establish rings by a tag of "TOP" up.
6. Establish a ring (8) of a spring by the lock opposite to the lock of an oil scraper ring (3) (on 180 °).