These days, i actually spending more times on rx7club.com. Other day, i read about spark plug broke inside the housing. I figured it's good to share pictures with my350z guys, since FI guys loves DIY. Hey, i never used TQ wrench when i replaced plugs, but i guess i gotta watch out.

 

Wow! That sucks. I just changed my plugs yesterday too, and I didn't use a torque wrench. Maybe I should invest in one. On a side note my car feels like it accelerates alot better now. So far no more misfires.

 

i've never used a torque wrench.. usually when the plug gets snug.. i do another 1/4 turn

 

^^ Same here. When you feel the washer start to crush, you know it's good

 

Thats how my pops taught me and i still use it. This last time the plugs were all a touch looser than I'd like (hey 30psi right) so i gave them a little extra bump too

tom

 

Didn't say how they got it out, Huh?

 

Use Anti-Seize Compound on Threads and do not over tighten and you will have no problems