I just had a bad thing happen this morning. I had my temp gauge temporarily hooked up, just taped to the dash mount area for the engine checkout and all. I was fooling around reaching down in the pocket that is formed between the fender and inner shell (radius area) and accidentally knocked the temp guage wire onto the positive of the battery, The outer protective coil glowed red hot. I pulled it free, but the coil had burned through leaving just the copper tube (apparently unharmed) I was able to bring the two ends of the coil together and get them wound up a few turns on each other and i think it will be ok, but man that scared me. I should have pulled loose the neg battery lead.racingenglishcars said:You're not kidding about bad things happening without a good engine ground. Hot cables mostly and melted things.
BTW, here is a pic of the ground bolt hole. For orientation, up in the pic is forward on the car and left in the pic is right on the car. The bolt hole is at the top left.
Sorry, that picture is here