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. |
mikedsilva |
Mar 15 2015, 07:10 AM
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#2
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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 |
guys
great suggestions... i will check tomorrow after work and report back. thank you. |
thieuster |
Mar 15 2015, 07:39 AM
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#3
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Member Group: Members Posts: 447 Joined: 31-January 15 From: 275 mls NW from Stuttgart. Member No.: 18,384 Region Association: Europe |
Here's a tip.
Don't use a new fuse to test the system. Use a test system: 2 wires, 2 clamps and a small bulb (mine is a red warning light). Make sure the wiring is long enough to make the warning light visible from the point where you reconnect the wiring (e.g. als from under the bonnet). Personally, I prefer hang the lamp on a hook above my cars, so that I can see it from all angles when working on the car. Remove the fuse and connect the contraption to the fuse terminals. Start re-attaching the connectors from 'iffy system' one by one. The moment the light comes on, you've found the culprit! I hope that this is clear enough - I can not explain this better in English... Menno EDIT 1: a buzzer can be great as well when working in a spot where you cannot see the lamp... EDIT 2: lots of info about this on YT. Try 'Test Lamp' (IMG:http://www.914world.com/bbs2/uploads_offsite/i211.photobucket.com-18384-1426426771.1.jpg) |
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