2. Wipe the back surface of the new upper connecting rod bearing and place it in the connecting rod. Make sure that the protrusion on the bearing fits into the groove in the connecting rod and the lubrication holes match (photo). Do not lubricate the bearing. Install the lower bearing into the connecting rod cap in the same way.
22.2 Installing the liner in the connecting rod
3. Arrange the piston ring joints according to the diagram (photo).
22.3a Arrangement of piston ring joints (until 1990.)
1. Upper compression ring; 2. Upper disc of oil scraper ring; 3. Oil scraper ring expander; 4. Crankshaft rotation plane; 5. Finger axis; 6. Lower disc of oil scraper ring
22.3b Arrangement of piston ring joints (after 1990.)
1. Upper compression ring; 2. Upper disc of oil scraper ring; 3. Lower disc of oil scraper ring; 4. Lower compression ring; 5. To the front of the engine
4. Lubricate the pistons and rings with clean engine oil, compress the rings with the device (photo), leaving a protruding section of the piston.
22.4 Preparation of the piston and connecting rod for installation in the cylinder is no different from the procedure for the main bearings (see above). Rotation of the crankshaft or the slightest contact of oil with the liners during measurements are not allowed. Tighten the connecting rod cap nuts to the specified
5. Turn the crankshaft to the bottom dead center in the first cylinder, lubricate the cylinder walls with engine oil.
6. Orient the piston so that the F mark or punch (on V6 engine) were facing towards the front of the engine (photo).
22.6a Mark F on the piston of a 4-cylinder engine
22.6b Punching on a V6 engine piston
[The article was copied from here: www.NissanBook.ru]
7. Carefully insert the lower part of the piston with the connecting rod into the first cylinder until the ring compressing device stops against the cylinder block. Lightly tap the upper edge of the mandrel for uniform contact with the cylinder block plane.
8. Insert the piston into the cylinder, carefully tapping the bottom of the piston with the wooden handle of the hammer (photo). Do not apply too much force.
22.8 Inserting the piston into the cylinder
9. Pull the connecting rod to the crankshaft journal and check the clearance in the connecting rod bearing (photo).
22.9a Section of gauge for measuring clearance in connecting rod bearing
22.9b Definition of the gap
Verification procedure
10. Carefully remove the remaining gauge, lubricate the bearings and crankshaft journal, install the cover and tighten the nuts evenly to the specified torque.
11. Repeat these operations for the remaining connecting rods.
12. After final installation of the pistons with connecting rods, check the freedom of rotation of the crankshaft.
13. Check the connecting rod axial play (see above). Keep in mind that after installing new parts, the play may be less than normal and the connecting rods will need to be ground.
14. Assemble and install the engine following the relevant sections.