>> D << Piston Connecting Rod Assembly Installation

WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.

Apply a sufficient amount of engine oil to the circumference of the piston, piston rings and oil ring.
Arrange end gap positions of piston rings and oil ring (side rail and spacer) as shown in the illustration.
Insert the piston and connecting rod assembly from the top surface of the cylinder block with the front mark of the piston top face facing toward the timing belt side.

Fig 1: Identifying Piston Pin Side Rail
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

CAUTION: Driving it in hard causes breakage of piston rings and damage to the crank pin.
Firmly tighten the piston ring with a ring band and insert the piston and connecting rod assembly.

Fig 2: Tightening Piston Ring
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.