Fuse Keeps Blowing- advice? |
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Fuse Keeps Blowing- advice? |
mikedsilva |
Mar 15 2015, 05:38 AM
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#1
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Member Group: Members Posts: 90 Joined: 23-February 15 From: Australia Member No.: 18,462 Region Association: Australia and New Zealand |
My new to me, 1970 914/4, has some iffy electrics..
The fuse in the number 7 spot, keeps blowing as soon as I turn the key to ignition on. So, this means I dont have any indicators or wipers working.. etc. Electrics are a little mysterious to me to be honest.. I do have a multimeter.. but I am not sure how to track this problem. I'm thinking I have a short somewhere on one of those systems.. Should I start by trying to unplug each and every component that uses that circuit, then reinstall another fuse, and turn the ignition on? How would an experienced auto electrician pinpoint a problem like this? Any and all advice appreciated.. Cheers Mike. |
Dave_Darling |
Mar 15 2015, 10:10 AM
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#2
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914 Idiot Group: Members Posts: 14,990 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California |
A weird one that drove me to distraction for a long time--
The fuse panel was moving slightly in the plate that it is mounted to. When it shifted in one direction far enough, one of the hot leads would touch the mounting plate, and it would pop the fuse. This usually happened when I hit a bump in the road, but the fuse panel would shift back into place after that one brief touch. Eventually, it didn't move back into place, and I noticed that it was mis-aligned. I tightened up the loose mounting screws, and put some slit tubing along the edge of the hole in the plate to act as an insulator. But I've also had the license plate lights hooked up backwards before, too. --DD |
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