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Guest Message by DevFuse
 

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78 Brat electrical snafu... HELP!!!


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12 replies to this topic

#1 ninefourteener

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Posted 13 June 2010 - 08:53 PM

So.... she's painted, got all the trim and parts back together.... looking GREAT.

Started her up this afternoon..... engine running great.... Headlights worked.... turn signals came on but didn't blink... dome light worked.... even the windshield wipers worked.

Couple minor issues..... but all in all..... pretty good.

Went out to test the fuses after dinner...... and poof.

Now NOTHING works.... no lights.... no wipers..... and the car will turn over all day long but won't fire and start.

Like my entire electrical system took a crap.

It has to all be related..... something?? suggestions??? HELP!!!

#2 ninefourteener

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Posted 21 June 2010 - 06:24 PM

WOW!!!! USMB is back up!!!!

I got a tip that the fusable link may be causing my problems. After locating it... it looks TERRIBLE (see picture).

So can I just replace it with a wire. If so, what gauge?

Or.... should I just put a new fuse in there? If so what size?

Any suggestions?

Posted Image

#3 biffanyus

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Posted 21 June 2010 - 08:31 PM

Im haven the same problem with my blinkers as well. They light up but dont blink. Let me know what you find out and good luck. Love to see pics of your newly painted brat.:)

#4 ninefourteener

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Posted 22 June 2010 - 09:18 AM

I have a progress thread on both clubwrx, as well as my forum.... www.slcsubaru.com. id post a link, but I'm on my phone.

Its hot rod black.... which is a flat/matte black...... and silver brat decals/striping are on their way here :) ill definitely post up once I get them on

Just gotta figure out this electrical issue first.

#5 Datsunrides

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Posted 23 June 2010 - 12:13 AM

I would NOT just replace it with a regular wire. Not a big fan of fusable links either. I would replace it with either a maxi fuse of around 40/50 amps (good) or a circuit breaker (better). The benefit of the curcuit breaker is once it cools down, it will reset and get you back runing again. With a fuse or link, you better have a spare with you. Non blinking turn signals may be as simple as a bad flasher can or a burned out bulb.

Mark

#6 Twitch de la Brat

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Posted 30 June 2010 - 02:25 AM

I would NOT just replace it with a regular wire. Not a big fan of fusable links either. I would replace it with either a maxi fuse of around 40/50 amps (good) or a circuit breaker (better). The benefit of the curcuit breaker is once it cools down, it will reset and get you back runing again. With a fuse or link, you better have a spare with you. Non blinking turn signals may be as simple as a bad flasher can or a burned out bulb.

Mark


Good call, yeah, I had the same issue with my 85 BRAT.
I had smoked the main fusible link.
I just replaced mine with a 60amp stereo fuse.
10 gage wire clips will clip right onto the big fuses, then all you have to do is
adapt to your main plug.

Although a breaker would be a better option, price wise, a fuse is gonna be
cheaper in the here and now.

Twitch

#7 ninefourteener

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Posted 01 July 2010 - 10:36 AM

60 amp stereo fuse seems to be working well for you then???

#8 Twitch de la Brat

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Posted 01 July 2010 - 01:28 PM

Yes, even with my offroad lamps, fogs and an 80amp GM Alt.
It handles all of it beautifully.

Twitch

#9 ninefourteener

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Posted 09 July 2010 - 10:52 PM

Thanks for all the help folks!@!!

I replaced the fusable link with a 40 amp circuit breaker... cleaned up a nasty corroded fuse box, replaced all the fuses with new (and appropriate) fuses.... and dug out a crapload of nasty corroded light bulbs, and replaced both flasher units.

Long story short...... EVERYTHING works

High beams, low beams, marker lights, license plate lights, dome light, dashboard lights, turn signals, and brake lights..... EVERYTHING

..... except my reverse lights.... and I KNOW the bulbs are good.

Suggestions?????? Where should I start????

#10 bratgrl

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Posted 12 July 2010 - 09:10 PM

I Would be interested in the backup light issue also. Mine quit working last year.

#11 ninefourteener

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Posted 12 July 2010 - 10:38 PM

Funny thing.... I crawled up underneath it today, on the aft section of the passenger side of the tranny.

Jiggled the wire and kidna pushed it on the tranny a little.... backup lights came right on :)

#12 biffanyus

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Posted 12 July 2010 - 10:54 PM

What do you mean by the aft section of the tranny?? My backing lights are a no go as well. What wire did you fiddle with?? How far under by the trannty were you?? Just want to know for sure so I can try the same thing. Thanks, Tommy..

Edited by biffanyus, 12 July 2010 - 11:09 PM.


#13 ninefourteener

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Posted 13 July 2010 - 08:38 AM

At first, I thought it was the speedometer cable, but then realized it was a "wire"

Plugs in on the passenger side of ther tranny, near the crossmember... about the size of a chapstick cap, with a wire coming off the top of it.

I just turned the car on (not running)... put it in reverse.... and started pushing and jiggling until the lights popped on.

Also got a new thermostat installed yesterday, and a new heater hose, eliminating the unneeded inline arctic heater (I have no idea if it worked, and it could be clogging something)

Start it up today after the RTV dries.... hopefully that will solve the overheating problem

Oh..... also got the horn working with my aftermarket steering wheel :)




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