| 1. Remove a deposit formed on the bottom of the piston and in flutes of piston rings, and from lubricant channels of the piston and a rod remove all adjournment.
| 2. Carefully check up, whether is not present on details of damages. Cracks of any character on the piston, piston rings, a finger, a rod and a cover are inadmissible and replacement of details demand. If on a working surface of loose leaves deep risks or they are worn too out, replace loose leaves new.