Pistons and connecting rods 1. Replace the bolt, lubricate the threads and the contact surface with oil, 30 Nm + 90°, to measure radial runout, tighten the old bolts to a torque of 30 Nm, but do not tighten them; 2. Connecting rod cover, thanks to the structural fracture method (cracking) for connecting rods, the connecting rod cover is installed only in one position and only on the corresponding connecting rod, mark the correspondence to the cylinder with a colored pencil -B-, installation position: marks -A- should be facing the pulleys; 3. Bearing shell, mark previously used bearings, but not on the working surface, the upper and lower bearings are not interchangeable: upper (piston-facing) made of more wear-resistant material. Distinctive feature of the new liner: black line on the working surface in the separation area, check the reliability of fastening, maximum axial play: 0.37 mm; 4. Connecting rod, replace only the entire set, with a broken connecting rod bearing cap, mark the correspondence to the cylinder with a colored pencil -B-, installation position: marks -A- should face the pulley (to the crankshaft toe); 5. Retaining ring, replace; 6. Piston pin, if the pin enters with difficulty, heat the piston to 60°C; 7. Piston, with combustion chamber, the image does not correspond to the version in the vehicle. Mark the mounting position and cylinder affiliation; 8. Piston rings, compression rings, place locks offset by 120°, installation position: when installed, marked "TOP"", or the side with the inscription must face the piston crown; 9. Piston ring, oil scraper ring, move the joint 120°to the lower compression ring
Mounting position of bearing shells in connecting rods
- 1. Bearing shell with oil hole -arrow- for connecting rod
- 2. Bearing shell without hole for lubrication of connecting rod bearing cap
Center the bearing shells into the connecting rod or connecting rod bearing cap. Size -a- on the left = size -a- on the right.
Removing the new connecting rod
It may turn out that the new connecting rods are not completely fractured at the forced fracture site. If the connecting rod bearing cap cannot be removed by hand, do the following: To prevent damage, lightly clamp the connecting rod in a vice with protective jaws, as shown in Fig. Clamp the connecting rod under the dash line. Unscrew the bolts -arrows- approximately 5 turns. Using a plastic mallet, carefully hit the connecting rod bearing cap -arrow- until it loosens.
Oil nozzle and pressure reducing valve
- 1. Bolt with pressure reducing valve, 27 Nm
- 2. Oil nozzle (for cooling pistons)
Installation position: Center the centering edge of the injector in relation to the machined surface of the cylinder block. Do not bend the oil nozzles to spray oil. Curved oil spray nozzles must be replaced.
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