echris 1,425 #1 Posted June 7, 2020 (edited) Today I was troubleshooting a blowing headlight fuse on my 1989 310-8. Both times it happened was after mowing with the lights on for 30 minutes+ so it was clearly an intermittent short. After two instances of me being an idiot: One: checking for voltage and not finding any when the battery was sitting on the bench behind me. Two: checking for shorts using a continuity meter set on beep and thinking my headlight was shorted to ground. (It is dummy, literally a high resistance short to ground) Anyway, after a lot of poking around, checking with a meter, being dumb, I found the black/blue wire under the engine was squished. I'm not positive, but I suspect it was the Attach-A-Matic. I cut the squished part out of the wire, stripped, soldered, shrink wrapped it. I just thought I'd post this here in case someone else has the same problem. Perhaps it's a common pinch point for the headlight wire on these models. Edit: Title word bad. :\ Edited June 8, 2020 by echris 7 Share this post Link to post Share on other sites
echris 1,425 #2 Posted June 7, 2020 I forgot to mention how I found the short. After inspecting everything under the battery, I put it back in and troubleshot it the old fashioned way. I turned the key and headlights on and jiggled wires. I heard the tell-tale sparkles from somewhere under the front frame rails. And smiled. Found you, you stinkin' why I oughta... 2 5 Share this post Link to post Share on other sites
squonk 43,443 #3 Posted June 9, 2020 The real old fashioned way is to let the smoke bomb out. Tried and true method perfected by Joseph Lucas “The Prince of Darkness “ 3 Share this post Link to post Share on other sites
echris 1,425 #4 Posted June 9, 2020 I'm an IT guy by trade and our saying is, "Sometimes you have to release the magic smoke to find the problem." Share this post Link to post Share on other sites