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Electrics caught fire #1012567 11/09/10 06:16 AM
Joined: Dec 2006
Posts: 108
Szia Offline OP
Wheeler
I have been using a radio transmitter to listen to my ipod in the car. The crap came apart without me noticing and a nice piece of metal was lying in the 12V hole starting to heat up. After a while smoke was coming out of the ventilation and the 12V hole was shining orange. Turned off car, removed the garbage and all was fine except the fuses went.

I tried replacing the fuses (interior lights + posterior, and tail) but sparks are flying when inserting new ones and they immediately burn off.

What could cause this annoying behavior? Not sure where to start.

Last edited by Szia; 11/09/10 06:17 AM.

Karl
1989 Mitsubishi Montero 2.6, 2 dr, 5spd.
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Re: Electrics caught fire [Re: Szia] #1012568 11/09/10 08:32 AM
Joined: Jan 2000
Posts: 16,227
off-roader Offline
Web Wheeler
*****
Short somewhere. Probably where the other one was glowing orange...


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Re: Electrics caught fire [Re: off-roader] #1012569 11/09/10 07:41 PM
Joined: Jan 2001
Posts: 13,649
fasteddy Offline
Web Wheeler
*****
You melted the insulation off some wires and shorted them, probably in the lighter wiring...


Not responsible for advice not taken...
Re: Electrics caught fire [Re: fasteddy] #1012570 11/09/10 08:36 PM
Joined: Jan 2000
Posts: 16,227
off-roader Offline
Web Wheeler
*****
Quote
You melted the insulation off some wires and shorted them, probably in the lighter wiring...


FE, I would guess this 'normally' wouldn't happen with the stock cig plug wiring unless you've severely overloaded it (isn't there a fuse for this?) or the heat damage was caused externally by what was plugged into it. <img src="/forums/images/graemlins/confused.gif" alt="" />


Off Roader
98 Montero with the Winter Package
89 Montero minty clean and reserved for overlanding trips or Cars and Coffee events
96SR (3.15:1 xcase, 35's) gone to the rust gods
96SR Build Up Thread
Old web page
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Re: Electrics caught fire [Re: off-roader] #1012571 11/09/10 08:54 PM
Joined: Jan 2001
Posts: 13,649
fasteddy Offline
Web Wheeler
*****
THe lighter draws a lot of juice, so the fuse is large amps, and the wiring can get hot enough to melt the insulation withoug popping the fuse. Been there, too, with a triple outlet adapter into the lighter outlet, then a large inverter plus two other loads into that, and the inverter suddenly got a heavy load (18v battery charger).


Not responsible for advice not taken...
Re: Electrics caught fire [Re: fasteddy] #1012572 11/09/10 09:04 PM
Joined: Jan 2000
Posts: 16,227
off-roader Offline
Web Wheeler
*****
Quote
THe lighter draws a lot of juice, so the fuse is large amps, and the wiring can get hot enough to melt the insulation withoug popping the fuse. Been there, too, with a triple outlet adapter into the lighter outlet, then a large inverter plus two other loads into that, and the inverter suddenly got a heavy load (18v battery charger).


Hmmm, I wonder how good they are in the gen II's. I'm running a quad plug adapter, cell phone charger, TomTom street gps power, & a 450W inverter off of it (no huge but probably enough) to power my laptop. <img src="/forums/images/graemlins/shiner.gif" alt="" />

Well, at least I have a separate 12v Aux jack wired in for the fridge using heavier gauge wire & a 15A fuse (stock fuse is 10A) that can handle the extra load it pulls.

Re: Electrics caught fire [Re: Szia] #1012573 11/10/10 04:23 AM
Joined: Feb 2005
Posts: 7,458
rxinhed Offline
Trail Leader
*****
If you find melted wires on the radio console anywhere,
I have numerous pieces I could donate to the repair. <img src="/forums/images/graemlins/smile.gif" alt="" />

If something in the chassis wire, passed my pieces. <img src="/forums/images/graemlins/frown.gif" alt="" />


1987 Raider - Roxy
1988 Mighty Max 2.6L Turbo - Pearl
1997 Mountaineer V8 - Freddy
2000 Excursion V10 - Freya
Re: Electrics caught fire [Re: off-roader] #1012574 11/10/10 04:28 AM
Joined: Jan 2001
Posts: 13,649
fasteddy Offline
Web Wheeler
*****
That's not a lot of load. Cell charger and Tomtom together may draw an amp or two. Inverter, now, may draw as much as 40, if straight math holds. 450w @ 120v, or a little under 4amps, and if you do a straight transform thats a little under 40a at 12v. This gets a little screwed up as one is ac and the other dc, so one is wrms amps and the other is constant current. At least this is the way the 'lectron 'splained it to me the last time I caught one and got it to talk... 'Lectrons are devious, however, and may have been foolin' old Eddy....


Not responsible for advice not taken...







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