enkeivette
06-22-2011, 01:58 AM
So I was plumping my motor for a first fire since my 2nd piston replacement yesterday, and I connect the battery... smoke from around the starter... dead electrical system after that. Found a melted fusible link. So I did a continuity test between that hot wire and ground, and it was a short. The other wire was not.
So I traced the few wires that I touched (including an alternator that I replaced at the same time) found the alternator stud was grounding on my cylinder head. Took the alternator off, did the continuity test again thinking I solved the problem. Nope... still a short. Then I thought... maybe it's just a circuit (batt is disconnected) that is tripping up my continuity test. So I did an impedance test... 1.3 ohms between the hot wire and my valve cover.
Thinking there is no way there is only 1.3 ohms between hot and ground without a short, I figured I melted some hot wire to ground somewhere. I was seconds away from giving up, and seeing if Big Bird would let me hire him to fix this when I thought, maybe I'm just an idiot and 1.3 ohms is normal. So I tape a fuse inline with the two ends of the melted fusible link, hook up the battery and all is fine???
Really?! Just 1.3 ohms between hot and ground with the battery diconnected and alternator disconnected? What is constantly hooked up with an impedance that low?!
So I traced the few wires that I touched (including an alternator that I replaced at the same time) found the alternator stud was grounding on my cylinder head. Took the alternator off, did the continuity test again thinking I solved the problem. Nope... still a short. Then I thought... maybe it's just a circuit (batt is disconnected) that is tripping up my continuity test. So I did an impedance test... 1.3 ohms between the hot wire and my valve cover.
Thinking there is no way there is only 1.3 ohms between hot and ground without a short, I figured I melted some hot wire to ground somewhere. I was seconds away from giving up, and seeing if Big Bird would let me hire him to fix this when I thought, maybe I'm just an idiot and 1.3 ohms is normal. So I tape a fuse inline with the two ends of the melted fusible link, hook up the battery and all is fine???
Really?! Just 1.3 ohms between hot and ground with the battery diconnected and alternator disconnected? What is constantly hooked up with an impedance that low?!