Nissan 350z Spark Plug Changing
Nissan 350z Spark Plug Changing
To get to the plugs there are several items that need to be removed. The strut brace, front cover and intake tubing.
Strut Brace
Loosen off the two locking bolts - 24mm spanner - (They both turn the same way as one end is a reverse thread.) then back off the strut brace tensioner. Turn this a few times to loosen off the brace and then undo the three nuts and one bolt on each end of the strut brace and lift the brace off. If you dont back the tensioner off first the brace pushes itself onto the stud each end and wont pull off!! - I know I did it!!
![[Image: 133_3345.jpg]](http://img.photobucket.com/albums/v96/EmperorMing/350Z/Engine%20Bling/133_3345.jpg)
![[Image: 133_3346.jpg]](http://img.photobucket.com/albums/v96/EmperorMing/350Z/Engine%20Bling/133_3346.jpg)
With the strut brace off taking off the front cover is only 4, 8mm bolts and the intake tube is one bolt on top of the plenum and two jubilee clips
![[Image: 133_3348.jpg]](http://img.photobucket.com/albums/v96/EmperorMing/350Z/Engine%20Bling/133_3348.jpg)
Now comes the awkward bit.
Each plug has its own individual coil pack on the top of the plug cap. This is bolted to the rocker cover with an 8mm bolt and gets its power from two wires connected to the pack by a simple click on connector. Fortunately it is quite a big connector and easy enough to get off with a little squeeze.
The easy way to do it is to remove the bolt that holds the coil pack to the rocker, pull up the coil pack and release the connector. the coil pack can now be removed whilst the plug is replaced.
![[Image: 133_3357.jpg]](http://img.photobucket.com/albums/v96/EmperorMing/350Z/Engine%20Bling/133_3357.jpg)
The back plug on the right hand bank - as you look at the car from the front - and the middle plug on the other bank have small brackets that get in the way of removal. The one covering the back plug can be bent out of the way enough to remove the coil pack but the other one has to be removed. (Only one bolt and easy to get to)
As you are removing the plugs there are several parts of the wiring loom that seem to be in the way but gently pulling them to one side or the other allows the items to be removed.
Allow a couple of hours for the first time and get yourself a 24mm spanner, a small plug socket with a decent extension and a normal tool kit and its a job any half competant spanner man can tackle.
Borrowed from another site but thought with the growing numbers here this may be of use
To get to the plugs there are several items that need to be removed. The strut brace, front cover and intake tubing.
Strut Brace
Loosen off the two locking bolts - 24mm spanner - (They both turn the same way as one end is a reverse thread.) then back off the strut brace tensioner. Turn this a few times to loosen off the brace and then undo the three nuts and one bolt on each end of the strut brace and lift the brace off. If you dont back the tensioner off first the brace pushes itself onto the stud each end and wont pull off!! - I know I did it!!
With the strut brace off taking off the front cover is only 4, 8mm bolts and the intake tube is one bolt on top of the plenum and two jubilee clips
Now comes the awkward bit.
Each plug has its own individual coil pack on the top of the plug cap. This is bolted to the rocker cover with an 8mm bolt and gets its power from two wires connected to the pack by a simple click on connector. Fortunately it is quite a big connector and easy enough to get off with a little squeeze.
The easy way to do it is to remove the bolt that holds the coil pack to the rocker, pull up the coil pack and release the connector. the coil pack can now be removed whilst the plug is replaced.
The back plug on the right hand bank - as you look at the car from the front - and the middle plug on the other bank have small brackets that get in the way of removal. The one covering the back plug can be bent out of the way enough to remove the coil pack but the other one has to be removed. (Only one bolt and easy to get to)
As you are removing the plugs there are several parts of the wiring loom that seem to be in the way but gently pulling them to one side or the other allows the items to be removed.
Allow a couple of hours for the first time and get yourself a 24mm spanner, a small plug socket with a decent extension and a normal tool kit and its a job any half competant spanner man can tackle.
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