Hi Folks, thought I would post up with an issue I am having on my personal truck. 1996 FZJ80. Plug #4 keeps loosening for some reason. It seems about every 5k miles I get a rough idle and yup each time the plug is loosened in the block. A few turns of snugging it up solves the problem. I am taking off on a long trip into the wilderness here soon solo with the kids and wondering if I should be concerned about this. In the past I have only snugged plugs up by feel. I put 20# on the #5 plug today (FSM torque is 14# I believe) and am hoping it will stay put. I have tried changing the plug with no change in symptoms. Has anyone had an issue like this? I am considering buying one of those rethreading kits to have in case of emergency. Thanks for your opinions, experiences.