Cylinder liners and cylinder block seating surfaces under the liners should be wiped with a napkin and blown with compressed air
Install the cylinder liners in the diesel block
The protrusion of the cylinder liner flanges above the block plane when pressing the liner with a force of 9±0.1 kN should be 0.05-0.11 mm.
Before installing in the block, the rubber sealing rings and the lead-in part of the liner should be lubricated with M10G2 GOST 8583-78 engine oil.
When installing cylinder liners in the block, cutting the rubber sealing rings is not allowed.
After installing the cylinder liners and tightening the bolts (nuts) for fastening the process heads, the block must be checked for leaks with water under a pressure of 0.6 MPa for 1 min.
Water leakage and dripping are not allowed.
The non-roundness of the inner surface of the cylinder liners after installing them in the block and tightening the bolts of the process head must not exceed 0.04 mm over a length of 100 mm from the lower end of the liner and 15 mm from the upper end.
The maximum pressing force for the liners is no more than 3000 N.
Camshaft with gear must be installed taking into account the maximum axial movement - no more than 0.25 mm.
The cylinder head gasket must be installed with the wide side of the edging to the block.
Cylinder liners by the inner diameter and pistons by the outer diameter of the skirt are sorted into three size groups.
The designation of the groups (B, C, M) is applied to the upper flange of the liner and on the piston bottom.
The dimensions of the inner surface of the liner by size groups are given in the table.
Size groups of pistons and cylinder liners
Group "B":
- Piston skirt diameter - 110-0.05-0.07 mm;
- Cylinder liner diameter - 110+0.06+0.04 mm;
- The gap between the piston and the cylinder liner is 0.09-0.13 mm
Group "C":
- Piston skirt diameter is 110-0.07-0.09 mm;
- Cylinder liner diameter is 110+0.04+0.02 mm;
- The gap between the piston and the cylinder liner is 0.09-0.13 mm
Group "M":
- Piston skirt diameter is 110-0.09-0.11 mm;
- Cylinder liner diameter is 110+0.02 mm;
- The gap between the piston and sleeve - 0.09-0.13 mm
It is allowed to install sleeves of repair size 110.7 mm.
In this case, the gap between the sleeve and the piston of repair size 0.09-0.13 mm must be provided by selective selection.