Nissan 12036-7B000 Ring Set-Piston

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To install the number one (top) ring, use a piston ring installation tool, ensuring the mark is facing up. It's crucial to avoid mixing up the top and middle rings with different cross-sections during installation. Repeat this process for all pistons and rings.

If the end gap measurement of the top ring is larger or smaller than specified, ensure you have the correct rings before proceeding. For a too small gap, you may need to file the rings to fit or exchange the set, depending on the ring type and material. For an excess end gap, which is not critical unless it exceeds 0.040-inch, compare measurements to the maximum specified end gap and make adjustments if necessary.