Toyota 4Y 2006 Manual page 75

Note:
Sort the removed pistons, connecting rod caps, and bearings
into the order of the cylinders.
[Point 51
Disassembly:
Disassemble the piston and the connecting rod.
1. Remove the piston ring and the oil ring.
2.
Use the SST and a press to push out and remove the piston
pin.
SST 09221 -76002-71
(09221 -2501 8)
Note:
The removal should be performed at room temperature.
Sort out the removed parts for each cylinder, and be sure
not to mix them up during reassembly.
[Point 61
Inspection:
lnspect the cylinder block.
1. lnspect for any distortions on the upper face of the cylinder
block.
Limit: 0.05 mm (0.0020 in.)
Check that there are no considerable scratches on the cylinder
wall surface. If there are scratches, rebore the cylinder.