List of ShPG parts with technological notes on repair to drawing VC3.013:
1. Piston rings:
- the locks of the rings must be located at an angle of 120°relative to each other;
- removal and installation by means of pincers for installation of piston rings;
- marking «TOR» should be directed towards the bottom of the piston;
- before installation, check the thermal gap (gap in the castle);
- checking the clearance in height between the groove and the ring.
2. Piston with combustion chamber:
- mark the mounting position and belonging to the cylinder;
- the arrow on the bottom of the piston must be directed towards the timing drive;
- at installation to use the adaptation for compression of piston rings;
- if cracks and scuffs appear on the piston skirt, replace the piston;
- measure the protrusion of the pistons from the cylinder block in position.
3. Piston pin:
- if installation is difficult, heat the piston up to about 60°C;
4. Retaining ring.
5. Connecting rod:
- mark belonging to the cylinder with a colored pencil at points (A);
- mounting position: mark (IN) must face the timing drive;
- the connecting rod is made by breaking off on covers from the connecting rod blank, be careful - even minor damage to the fracture surface is unacceptable.
6. Liner:
- top and bottom liners are not interchangeable: top (towards the piston) made of more wear-resistant material; marking: black stripe on the working surface, at the edge of the joint;
- do not change previously operated liners;
- install in the center;
- check the reliability of fixation;
- limiting value of the axial clearance during wear: 0.37 mm;
- measure the radial clearance in the connecting rod bearing using the Ptastigage plastic gauge:
- wear limit: 0.08 mm;
- do not rotate the crankshaft when measuring the radial clearance.
7. Cylinder block:
- before assembly, check the diameter of the cylinders.
8. Connecting rod bearing cap:
- install according to the labels.
9. Nozzle for cooling the piston with oil.
10. Injector screw: 25 Nm (install without sealant).
11. Connecting rod bearing cap screw: 30 Nm and tighten 1/4 turn (90°):
- when assembling, replace with a new one;
- lubricate the thread and bearing surface;
- to check the radial clearance, use the old fastening screws.
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