How do I find a short?

after oil · Post by **after oil** » Tue Apr 21, 2015 2:42 pm

One of the fusible lines blew this morning. It's one of the wires from the harness to a connector behind the battery. I replaced it with a 30A inline fuse. I have been fiddling with my WVO system, and had the battery cables and connectors all off then back on again. Is there any process for finding a short? Is there anyway I can test w/o blowing a fuse each time?
Thanks
Ari

macro · Post by **macro** » Wed Apr 22, 2015 4:05 am

Could one of the cables have shorted out when you were fiddling around maybe?

Post by **Big-Bird** » Wed Apr 22, 2015 4:30 am

You could install a breaker instead of a fuse. The breaker would trip and click.

Look at electronic supply on ebay and get a similar amp rating to the fuse.

after oil · Post by **after oil** » Wed Apr 22, 2015 8:44 am

I'll go back in this morning and make sure no cables are shorting, but it doesn't appear as if any are.

Maybe I'll eventually install a breaker, but if I cant get it locally (Powell River), I can't wait for one to come from far away.
As for amp rating for the fuse: unknown. I searched the forum and read as many posts on the subject as I could, but this is an unsolved Delica problem apparently.

Post by **FalcoColumbarius** » Wed Apr 22, 2015 11:45 am

I had an issue recently where I was blowing a 15amp fuse all the time, so I pulled the batteries to have a look and one of the big lead (+) extensions had melted a bit. I cleaned all the terminals and cable ends and put her back together and the fuse has not blown since. Why? I'm not sure. I'm thinking that because of the corrosion build-up on the terminals, there was a matching charge build-up? It's currently a mystery to me but I did clean the terminals and the problem stopped.

Falco.

after oil · Post by **after oil** » Wed Apr 22, 2015 9:06 pm

I am a very lucky man. I dug up a replacement link that is from my parts van that I was sure was a burned one from my van, but its a good one. The 30a just isn't enough for that circuit. Rolling again. I wonder how to test the fuseable link to get the amperage?

Post by **Big-Bird** » Thu Apr 23, 2015 3:54 pm

You can't test a Fusable Link to get its rating. This is done by the manufacturer when they build them. They actually do destrucitve testing to verify they will blow once an overamp-draw occurs. Its more about the melting temp of the metal in the fusable link.

You need to know what is attached to the entire circuit to get the AMP rating OR you need to get the factory manual that would show the Link inline.

after oil · Post by **after oil** » Fri Apr 24, 2015 7:38 am

As far as I know, this is a Delica mystery that has never been solved. Nothing on the forum to say.
It was discussed in this thread two years ago
http://www.delica.ca/forum/viewtopic.ph ... 53#p126553

Delica Canada | Mitsubishi Van Club

How do I find a short?

How do I find a short?

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