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Old 06-22-2011, 01:58 AM   #1
enkeivetteenkeivette is offline
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Default Electricity is Magic

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?!
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Old 06-22-2011, 02:01 AM   #2
enkeivetteenkeivette is offline
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Oh ya... Vette runs Next time Im in OC I'll pick up an intercooler and start plumbing that bitch. Should be at the next run hopefully! It's been long enough.
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Old 06-22-2011, 11:24 AM   #3
94cobra69ss39694cobra69ss396 is offline
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I wish I knew more about electrical but unfortunately my knowledge is limited. Fortunate for me there hasn't been an auto electrical question I've had that either Phil or my dad couldn't help me with. I'll give Phil a call today and see if he can chime in for you.
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Old 06-22-2011, 02:14 PM   #4
enkeivetteenkeivette is offline
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It's ok, the car runs so it's more curiosity at this point. My Dad is an electrical engineer and he even said it was impossible.
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Old 06-22-2011, 05:40 PM   #5
BRUTAL64BRUTAL64 is offline
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