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fritter

az supporter
Joined: Sun Sep 19, 2010 9:30 am Posts: 1163 Location: Wahroonga NSW
Vehicle: 89 Vit. The Desert Rat...
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 Posted: Tue Jun 14, 2011 10:16 pm |
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Hi all,
I was driving home last night when I suddenly lost all electrics.
I found that the ignition fuseable link had blown.
I replaced it but that blew straight away.
Tried a 50 amp this morning but that blew as well.
Can see any obvious shorts and I'm stuck on the side of the road in the rain.
Anyone got any clues where to look. It's an 89 but.
Thanks
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royce

omnipotent being
Joined: Sun Jun 11, 2006 11:30 pm Posts: 17216 Location: Pluto
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 Posted: Tue Jun 14, 2011 10:25 pm |
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blow straight away or blow once you turn the ignition on?
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fritter

az supporter
Joined: Sun Sep 19, 2010 9:30 am Posts: 1163 Location: Wahroonga NSW
Vehicle: 89 Vit. The Desert Rat...
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 Posted: Tue Jun 14, 2011 10:27 pm |
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Soon as I turn the ignition key.
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royce

omnipotent being
Joined: Sun Jun 11, 2006 11:30 pm Posts: 17216 Location: Pluto
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 Posted: Tue Jun 14, 2011 10:31 pm |
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that narrows the fault to post ignition switch at least
pull all the fuses related to ignition out and try again
Were your wipers on at the time?
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fritter

az supporter
Joined: Sun Sep 19, 2010 9:30 am Posts: 1163 Location: Wahroonga NSW
Vehicle: 89 Vit. The Desert Rat...
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 Posted: Tue Jun 14, 2011 10:42 pm |
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Yep wipes were on.
Tool out the fuse for wipers, heater as they were both on.
Checked the ignition coil fuse and It's ok.
Blew the link again.
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fritter

az supporter
Joined: Sun Sep 19, 2010 9:30 am Posts: 1163 Location: Wahroonga NSW
Vehicle: 89 Vit. The Desert Rat...
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 Posted: Tue Jun 14, 2011 11:53 pm |
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Pulled all the interior fuses and then tried it with a 60 amp link.
It blew as soon as I turned the key to the ignition position.
I'm guessing that it would have to a pretty chunky short to blow a 60 amp fuse without smoking first.
The only two cables from the battery heavy enough that I can see are the alt and the starter.
Could it be an internal short in the alternator?
Has anyone ever seen that happen? The alternator's 22 years old so it's about due to be replaced anyway.
Now to get it home where I can work on the car without trucks passing three feet away. 
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royce

omnipotent being
Joined: Sun Jun 11, 2006 11:30 pm Posts: 17216 Location: Pluto
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 Posted: Tue Jun 14, 2011 11:59 pm |
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none of those are on the ignition circuit
if you arent blowing any other fuses I would next check from switch to fuse panel
to save blowing links, fasion up a tester with a spotlight bulb, pull the fuse out and stick bulb positive in one terminal and negative on the other, when the bulb lights you are drawing power
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fritter

az supporter
Joined: Sun Sep 19, 2010 9:30 am Posts: 1163 Location: Wahroonga NSW
Vehicle: 89 Vit. The Desert Rat...
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 Posted: Wed Jun 15, 2011 12:08 am |
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Thanks Royce.
Good idea. At $6 per fuse it's getting expensive.
I'll start tracing it back from the switch as soon as I get it home.
Time dry off, warm up and have breakfast. 
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fritter

az supporter
Joined: Sun Sep 19, 2010 9:30 am Posts: 1163 Location: Wahroonga NSW
Vehicle: 89 Vit. The Desert Rat...
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 Posted: Wed Jun 15, 2011 10:19 am |
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All working again.
I'm not sure exactly where the problem was but I fiddled with the cables to the fuse box and it worked!
You were right Royce.
Legend. 
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jimbo_jones

az supporter
Joined: Sat Jul 19, 2008 11:30 pm Posts: 4361 Location: gong
Vehicle: 2015 Jimny, LJ50, Maruti
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 Posted: Wed Jun 15, 2011 10:41 am |
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you might want to find out what it was incase it happens again
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fritter

az supporter
Joined: Sun Sep 19, 2010 9:30 am Posts: 1163 Location: Wahroonga NSW
Vehicle: 89 Vit. The Desert Rat...
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 Posted: Wed Jun 15, 2011 11:07 am |
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yeah i plan to.
Next time I might not be so lucky and be alot more than 1km from home.
P.S. Your rig's looking good Jimbo.
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royce

omnipotent being
Joined: Sun Jun 11, 2006 11:30 pm Posts: 17216 Location: Pluto
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 Posted: Wed Jun 15, 2011 11:27 am |
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if jiggling around the fusebox sorted it try unscrewing it and just looking around for maybe a bit of metal stuck in there or a rubbing wire
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