Nissan A2010-2Z064 Piston W/PIN

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If ridges are present due to carbon deposits or cylinder wear, they must be completely removed with a ridge reamer before attempting to remove the piston and connecting rod assemblies to avoid piston breakage.

Rotate the crankshaft to bring the number one connecting rod journal to bottom dead center and apply engine oil to the cylinder walls. Insert the piston/connecting rod assembly into the cylinder bore with the notch facing the timing belt end, ensuring the "W" mark is oriented correctly. Gently tap the ring compressor to ensure contact with the block and carefully drive the piston into the cylinder while guiding the connecting rod onto the crankshaft journal, avoiding any force that could damage the components.

A piston ring groove-cleaning tool should be used to remove carbon deposits from the ring grooves, or a piece broken off the old ring can suffice, ensuring no metal is removed or grooves are damaged.

Before installing the piston/connecting rod assemblies, you should ensure that the cylinder walls are meticulously clean, the top edges of each cylinder are chamfered, and the crankshaft is in position.

Use your fingernail to feel for ridges.

Ensuring clear oil return holes in the back sides of the ring grooves is essential to maintain proper lubrication of the piston rings and cylinder walls.

The new upper bearing insert should be placed in the connecting rod, ensuring that the tab aligns with the recess in the rod.

It is crucial to use new piston rings during engine reassembly to ensure proper sealing and optimal engine performance.

No, the pistons should not be separated from the connecting rods.