[Shop-talk] Fuses

[DAVID MASSEY]

A 50W headlamp will limit current to 5 amps or so.  Just about any wire used in a British car harness will carry that easily enough.  If you are concerned about the wire size you can place two headlamps in series to limit current to 2.5A.  A short to ground will just look like a ground connection to the headlamp.

Dave 


 

    On Friday, January 12, 2024 at 05:22:00 AM CST, Moose <eric at megageek.com> wrote:  
 
 Dave,

This is brilliant (figuratively ANDliterally) 8>)

But is this safe?  Couldn't itmelt wires if there is a short?

This is a really great idea I neverhear of, so thanks for sharing!

Best tip of the year!

Moose



From:       DAVID MASSEY <dave1massey at cs.com>
To:       "shop-talk at autox.team.net"<shop-talk at autox.team.net>, Moose <eric at megageek.com>
Date:       01/11/2024 07:59
Subject:       Re: [Shop-talk]Fuses



The trick I learned is to replace the fusewith a headlight.  The short will cause the headlight to glow fullbright.  Once the short is cleared the other lights will illuminatedimmly as will your fuse replacement and now it is safe to reinstall thefuse.

Dave 




On Wednesday, January 10, 2024at 10:11:39 PM CST, Moose <eric at megageek.com> wrote: 


OK, I'm sure I'm missingsomething here, but I figured I'd ask.

My Jeep had a short circuit and blows a fuse if I turn on the lights.

So I remove all bulbs on the circuit and try again.  Blown fuse.

I take some other items off the circuit and try again, blown fuse.

Moving around and trying different things, blowing fuses all around.

I found the short, fixed it and all is well.

My question is, is there a way to do this without having to blow fuses? I'm guessing a meter should show 0ohm resistance if there is stilla short, but I was not getting a open circuit.

Any ideas so I don't have to go through a hand full of fuses next time?

Thanks. 

Moose
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