Pistons and connecting rods — removal and disassembly [Toyota Carina T170]

• The pistons and connecting rods are removed from the inside of the cylinder with the hammer handle facing upwards, after removing the connecting rod bearing caps and bearing shells. When performing these operations, the instructions for marking, installation position, etc. must be observed.
• Number each piston and the corresponding connecting rod according to the cylinder number they are being removed from. This is best done with paint on the piston crown. Also mark the piston crown with an arrow pointing towards the front of the engine.
• When removing the piston with the connecting rod, take into account the exact installation position and immediately after removal apply the cylinder number on one side of the bearing cap. This is best done with a punch (cylinder No.1 - one blow, etc. Fig. 22).
• Mark the bearing shells in relation to the connecting rod and to the bearing cap. Also mark the lower and upper bearing shells with paint on the back side.
• Remove bearing caps and liners and remove parts as mentioned above. If necessary, remove the ring of burnt oil deposits from the top of the cylinders.
• Using piston ring pliers, remove the piston rings one by one (Fig. 87). If the rings are to be reinstalled, mark them accordingly. If you do not have piston ring pliers, you can slide metal strips under the ring on opposite sides of the piston and slide the ring. To avoid scratches, place the strip under the ring joint.

Pistons and connecting rods should be disassembled only when absolutely necessary. To check the condition of the pistons and connecting rods, hold the connecting rod in your hand as shown in Figure 88 and tilt the piston to either side. If the piston "tilts over", replace the pistons and connecting rods as a set. The pins are pressed into the connecting rods and must be released with a press.

(The text is quoted from the source website: «www.ToyotaMan.ru»)