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Burnt cables to starter motor

Posted: Tue Dec 07, 2010 9:49 am
by nvr2low
Hey guys after I changed the starter motor everything was fine drove it home. I went back down a hour later to go out and their was no lights and alarm wouldn't turn off. Opened the bonnett and found the cables going to the starter motor were completely fried both positive and negative.
Now can something inside the starter motor cause this. In pulling the car apart after work and re wiring it.

Of course the battery is completely fried

Re: Burnt cables to starter motor

Posted: Tue Dec 07, 2010 10:55 am
by I8A4RE
The positive wire would have been touching the body (earth).

Re: Burnt cables to starter motor

Posted: Tue Dec 07, 2010 11:05 am
by Bennoz
Well Mitch is a sparky by trade... Im sure he'll figure it out. Melted wires = bad yeah? :lol:

Re: Burnt cables to starter motor

Posted: Tue Dec 07, 2010 11:07 am
by I8A4RE
Bennoz wrote:Well Mitch is a sparky by trade... Im sure he'll figure it out. Melted wires = bad yeah? :lol:

Yeah true, what the hell are you asking us for :facepalm2:

Re: Burnt cables to starter motor

Posted: Tue Dec 07, 2010 11:08 am
by Bennoz
Maybe its because there's more than 3 wires? Ie Active, Neutral & Earth? :lol:

Re: Burnt cables to starter motor

Posted: Tue Dec 07, 2010 12:03 pm
by nvr2low
Lol get out of it Ben haha it's because I deal with 415v not 12v lol I was just wondering if the starter motor could have caused it to short out lol

Re: Burnt cables to starter motor

Posted: Tue Dec 07, 2010 12:56 pm
by Bennoz
nvr2low wrote:Lol get out of it Ben haha it's because I deal with 415v not 12v lol I was just wondering if the starter motor could have caused it to short out lol
:cheeky:

Short answer is yes, it could have.

I've had an issue where a bad earth (big one from loom to chassis) caused the starter solenoid to fry & arc on permenantly. Fortunately for me, one of the legalities of relocating ones battery into the boot, is to fuse the main positive line, I had a 150amp fuse that popped... as opposed to what happened in your case & you melted that whole main line.

Re: Burnt cables to starter motor

Posted: Tue Dec 07, 2010 4:21 pm
by nvr2low
Ok ben were should I put all the negatives to.
Battery to the gearbox
battery to the chassis
is that all

Re: Burnt cables to starter motor

Posted: Tue Dec 07, 2010 5:33 pm
by nvr2low
Well took me all of 10 mins and I found the problem the rubber boot that sits over the active terminal on the starter motor had fucked up and it was arching on were the 6a13 oil filter sits

Re: Burnt cables to starter motor

Posted: Tue Dec 07, 2010 9:44 pm
by Storm
nvr2low wrote:Well took me all of 10 mins and I found the problem the rubber boot that sits over the active terminal on the starter motor had fucked up and it was arching on were the 6a13 oil filter sits
I bet you still charged yourself for six hours labour and parts though :lol:

Re: Burnt cables to starter motor

Posted: Tue Dec 07, 2010 10:42 pm
by nvr2low
Aha nah just flogged all the part out of the workshop haha.

Re: Burnt cables to starter motor

Posted: Wed Dec 08, 2010 8:28 am
by Bennoz
Storm wrote:
nvr2low wrote:Well took me all of 10 mins and I found the problem the rubber boot that sits over the active terminal on the starter motor had fucked up and it was arching on were the 6a13 oil filter sits
I bet you still charged yourself for six hours labour and parts though :lol:
Bahahahaha :lol: :lol: :lol:

Re: Burnt cables to starter motor

Posted: Wed Dec 08, 2010 11:27 am
by I8A4RE
Storm wrote:
nvr2low wrote:Well took me all of 10 mins and I found the problem the rubber boot that sits over the active terminal on the starter motor had fucked up and it was arching on were the 6a13 oil filter sits
I bet you still charged yourself for six hours labour and parts though :lol:
NICE!!!!! :lol: :lol: :lol: :lol:

Re: Burnt cables to starter motor

Posted: Wed Dec 08, 2010 11:40 pm
by dj_ules
bahahahaha sorry had to laugh the exact same thing happened to me when i replaced the starter, drove in town and the cables were touching the hot engine when i stoped to get some food and started the car back up i ended up melting the leads my battery terminals, deadly green smoke started coming out of the bonet... :alien: lesson learnt, new leads and battery fixed it right up .. and this time i tied the leads in the appropriate area !!
:clown: