This is one of the toughest DIY job I have done. The Nissan engine mount 17mm nut is crimped and not to be replaceable by an average DIYer. With a 600Nm torque wrench, I can bearly loosened the crimped nut. There is not enough space for an impact wrench and using an angled adapter will reduce its torque. It takes me almost 3 hours as I have no idea how to do it as there is not much information on the internet or the workshop manual.
This is taken under the car. The 1st front mount 17mm nut is loosened with impact wrench.
The rest of the 2 17mm nut is loosened from above. The fan is better to be removed to allow more working space.
The tranny is jacked. Here is the wrong illustration without a piece of wood. Don't jack too far 1-2 inches is enough to loosen all 3 screws.
This is the hardest part to think out how to remove the mount. Finally I get it from above, easily once the engine is jacked up enough. The front mount can be slide forward easily.
The mount is removed, showing the space. Remember, the mount can only by slide forward ( towards to radiator)
Left old mount with compressed rubber and some cracks.
New mount is slide into space with some leverage.
17mm nuts and screw can be easily inserted ( with appropriate engine jacked up sequentially) and then tightened with.
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