Insert a new piston ring into a flute of the piston and щупом measure a backlash between a piston ring and a flute wall. If the backlash exceeds maximum permissible value, replace the piston.

Щупом measure a backlash in the lock of a piston ring.

Check up working surfaces of loose leaves шатунных bearings on absence of strips, scratches, local corrosion, development and other damages. If necessary, replace loose leaves. If working surfaces of loose leaves шатунных bearings are strongly damaged, check up a condition шатунных necks of a cranked shaft. If the cranked shaft also is damaged, replace it or for a reuse перешлифуйте necks till next reduced size.

Measure internal diameter of loose leaves шатунных bearings and diameter of necks of a cranked shaft. If the oil backlash exceeds admissible limits, replace loose leaves and, at necessity, a cranked shaft.

Combine forward labels and insert a piston finger. The piston finger should enter smoothly into the piston by pressing it a hand (at a room temperature). In the presence of the big backlash replace a piston finger.

Establish on the piston a dilator маслосъемного rings and маслосъемное a ring. Пассатижами for a release of piston rings establish компрессионное a ring №2, then establish компрессионное a ring №1. Be convinced that labels on piston rings are directed to the piston bottom.

Arrange locks of piston rings, as is shown in drawing.

The special adaptation compress piston rings on the piston. The hammer handle press the piston into the cylinder so that the bottom head of a rod was established on a neck of a cranked shaft.

Establish шатунный the loose leaf in a rod cover. Establish a cover of a rod and fix nuts. The inhaling moment: 25 Nm to tighten on a corner 90 .

Do not use more than three times bolts of fastening of covers of rods.

Щупом, inserted between a rod and cranked shaft, measure a lateral backlash of a rod.