Standard engine removal involves disconnecting the battery, draining fluids (oil/coolant), and removing the intake/exhaust manifolds before lifting the assembly with an engine lifter.
A vital, often overlooked task involves cleaning the battery air intake . This intake lacks a filter, meaning debris can accumulate inside the high-voltage battery system, potentially leading to overheating or performance loss. nissan e13 engine service manual
Beware of scanned PDFs from 2012 or generic aftermarket manuals. Here are the legitimate sources: draining fluids (oil/coolant)