Once again, another midnight shows you how not to do it

[midnight]

This is what happens when you tq down on a plug on the #8 cyl. Missed like a mother f er

[Trail X]

Over torque can cause a misfire?

How so? Teach me!

[bartonmd]

Overtorquing without using a spark plug socket can...

Otherwise, it was just a bad plug, if you were using a spark plug socket with the rubber doughnut inside it...

Mike

[midnight]

i was using a plug socket with rubber holder in side. the #8 plug is a bitch to. when i went to tq down on it and the angle i was at with my tq wrench, i loaded the end of the plug to mush and cracked the porcelain. then it started to arc. it took a week for this to cause a misfire that the computer picked up as a cel.

[bartonmd]

Wow, sounds like fun!

Mike

[Trail X]

Oh, so it's really a matter of bending the insulator and fracturing it, not so much over-torque.

[midnight]

what he said^^^^