hey, i'm changing my plugs tomorrow for the first time. ive done it before in other cars, just wondering if there are any tips for the z31. i vaguely remember a post a while back that said there was a trick to one or two of the plugs, but i think it was lost back when they were changing the site around. oh yeah, i'm using ngk.

 

most importantly:
blow out the area surrounding the plugs BEFORE you remove them. You do NOT want to get any debris in your cylinders.

 

yes, thats a given, anything in the cyliders besides fuel and air is obviously a very bad thing. but wasnt there some trick with a length of rubber tubing to get one out?

 

Nah. The only trick is to use the spark plug tool that came with the car.

Number 6 is actually easier to push the boot on with your arm below the plenum. Number 4 is easier with the throttle cable plate removed. Number 2 is easier with the idle control sensors (those cadmium colored things) out of the way.

Numbers 1, 3, and 5 are all fairly straight forward.

Oh, and when installing the new plugs, turn them counter-clockwise until they click into place to prevent stripping the threads.

 

cool, thanks. i completely forgot about the tool kit in the car. luckily its all still there.