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05-23-2012, 05:14 AM
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CC Member
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Join Date: May 2012
Cobra Make, Engine:
Posts: 1
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Not Ranked
The wiring in my cobra is a birds nest!
Can somebody help me? Where can i find a wiring diagram for my newest toy... A cmc cobra kit built in 1993... Or anything else that might be helpful in getting everything working again and looking good on the car...
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05-23-2012, 05:56 AM
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Senior Club Cobra Member
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Join Date: Dec 2001
Location: Shasta Lake,
CA
Cobra Make, Engine:
Posts: 26,597
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Not Ranked
I can't help you with a wiring diagram but you should have seen the mess in my Coupe. I had it all taken out and a brand new wiring harness put in. It not only looks a lot better but I am sure that once everything is all finished with the rest of it I won't have any problems with loose connectors and such.
Ron
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05-23-2012, 06:17 AM
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CC Member
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Join Date: Aug 2010
Location: San Antonio Valley Ca,
ca
Cobra Make, Engine:
Posts: 1,275
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Not Ranked
Quote:
Originally Posted by 93cmc
Can somebody help me? Where can i find a wiring diagram for my newest toy... A cmc cobra kit built in 1993... Or anything else that might be helpful in getting everything working again and looking good on the car...
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Where are you? Your probably not going to find a diagram. It may be the best easiest to tear it all out and start from scratch with a new harness as we did with Ron's coupe.
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05-23-2012, 06:20 AM
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CC Member
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Join Date: May 2009
Location: American Fork,
Ut
Cobra Make, Engine: 66 Cobra
Posts: 930
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Not Ranked
If you decide to re-wire it talk to Ken at Haywire. They make wiring harneses for Cobras. Every wire is maked where it goes and the cost is very reasonable.
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05-23-2012, 06:31 AM
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CC Member
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Join Date: Feb 2002
Location: Dadeville,
AL
Cobra Make, Engine: Sold my EM.
Posts: 2,459
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Not Ranked
93cmc,
How much do you understand about wiring and electricity? If the old wiring looks bad, doesn't work and is 20 years old, why not replace it all? Unless you've got a computer controlled, fuel injection wiring harness, there aren't many car wiring challenges simpler than a Cobra replica.
I replaced all the wiring in my car with a home built harness a few years ago. I started by listing all the electrical components and sketched out a wiring diagram. I then decided on wire colors and gauges, and routing for each wire bundle. I bought a bunch of wire and started cutting it to rough length and bundled it as required. In those cases where there were more than two wires of the same color, I attached labels to each end. I installed the bundles, trimmed each wire to the correct length, installed wire ends and connected each to its component. Along the way, I saw things I didn't like about the way the car had been wired, and I changed things that needed it.
__________________
Tommy
Cheetah tribute completed 2021 (TommysCars.Weebly.com)
Previously owned EM Cobra
"Never attribute to malice that which is adequately explained by stupidity." - Hanlon's Razor
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05-23-2012, 07:30 AM
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Senior Club Cobra Member
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Join Date: May 2001
Location: Florence,
AL
Cobra Make, Engine: RCR GT 40 & 1966 Fairlane 390 5 speed
Posts: 4,511
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Not Ranked
a lot of the old Cobras were wired by people who knew a "little bit" about wiring a car.
Most of the older Cobras I have worked on have a lot of wiring issue.
What type of fuel panel does you have? Fans, electric fuel pump, heater, wiper, push button start, etc.
Do you want to use what you have or can you afford to buy a new harness and start over? Harness should cost $300 to $500.
I draw my own diagrams for the components that I want to install. If you tell me what you have or want I could draw one for you. Something I like doing. It's more fun than watching TV.
I do have a lot of diagrams saved into a computer folder but not a full dawning for a Cobra.
Please feel free to email me if I can help.
Dwight algunruner@aol.com
__________________
''Life's tough.....it's even tougher if you're stupid.'' ~ John Wayne
"Happiness Is A Belt-Fed Weapon"
life's goal should be; "to be smarter than inanimate objects"
Last edited by Dwight; 05-23-2012 at 07:32 AM..
Reason: spelling
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08-18-2012, 02:01 AM
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CC Member
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Join Date: Jun 2012
Location: Naracoorte,
SA
Cobra Make, Engine: CR Cobra 3169
Posts: 818
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Not Ranked
I bought a complete doner car. Would it be easier to use the complete wiring loom from that car, and just cut out the stuff I don't need? Shorten or lenghten the wires to tidy it up. I got a new wiring loom with the cobra, but I would still have to use all the engine loom.
JD
P.S. Does anybody have a wiring diagram for a 92 Ford Fairlane?
Last edited by Jaydee; 08-18-2012 at 02:03 AM..
Reason: P.S.
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08-18-2012, 04:24 AM
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CC Member
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Join Date: Apr 2011
Location: adelaide south australia,
SA
Cobra Make, Engine: Adelaide cobra kit toyota 1uzfe
Posts: 19
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Not Ranked
I just finished wiring my car, and it was pretty easy really. My suggestion would be to steer clear of using chassis wiring off old cars.
Buy a whole roll of 7 core 10amp cable, 2-3 fuse small fuseboxes (about 15 total fuses) and depending on where you have your battery about 5m of battery cable (255amp heavy gauge stuff). 2 2pin flasher cans
Relays for headlights, hibeams, horn, thermo fans and fuel pump.
Mount the battery in your boot and mount the fuseboxes somewhere accessable and out of harms way.
Run 7 core cable to the rear of the car from your column (just loose), to the farthest point it will be used, and run a 7 core cable to the front to the furthest point.
Wire the rear of the car and make your own wire, colour list
eg (this was my coding)
Rear
Colour Does From which fusebox
red brake solid +
white taillights acc
yellow left indicator
green right indicator
brown reverse light acc
black fuel pump relay acc
blue fuel gauge sender acc
Front
red hi beam relay solid +
white headlight relay acc
yellow left indicator
green right indicator
brown parker lights acc
black horn relay solid +
blue thermo relay acc
tap into the loom only where you need to,and you can also use the unused wires at the end of the loom as earths.
Do the same at the front, but the loom should finish in a relay box. From the relay box, run heavier gauge wire to headlights, horn and thermo's.
Wire earths as you go, So you can check your wiring if you need to.
Wire a solid positive over to your ignition switch. Wire seven core wire all joined together at ign switch end to acc position on switch and run it back into one of the fuse boxes.
Run a 7 core cable to the other fusebox from battery+
place flasher cans and wire one (for hazards) from solid + fusebox and the other from acc
Run seperate looms from column for gauge signal wires and wiper/washers
If you put a short length of wire between a fuse and your loose looms and you should be able to use your chassis electrics
Then you figure out what does what with your column switching.
When connecting the final column to front and rear looms don't forget to tap into wire for dash lights for things you want to know are on. Hibeams, left and right indicators, thermos, fuel pump. Leave them long and loose for connecting into your dash.
You should then get the family in the shed and give them a light show
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08-18-2012, 12:26 PM
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CC Member
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Join Date: Oct 2006
Cobra Make, Engine: Former owner of Long Live the Bow tie Contemporary #102 427 Chevy .30 over Merlin heads 11to1, TBI injection
Posts: 749
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Not Ranked
The best thing to do is just remove all the old wiring and buy a new Painless Wiring kit. They are top quality and are very straight forward to put in.
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08-18-2012, 03:06 PM
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Senior ClubCobra Member
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Join Date: Feb 2006
Location: Northern,
Ca
Cobra Make, Engine: LA Exotics
Posts: 1,037
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Not Ranked
Agreed. Get a Painless wiring kit.
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08-18-2012, 03:34 PM
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CC Member
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Join Date: Jun 2008
Location: Chester Springs,
PA
Cobra Make, Engine: Kirkham 289 FIA #690, FRPP 427 Boss engine
Posts: 764
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Not Ranked
__________________
RCR GT40 SOLD to Fast 5
Kirkham #690 289 FIA
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08-19-2012, 07:07 AM
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CC Member
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Join Date: Oct 2006
Cobra Make, Engine: Former owner of Long Live the Bow tie Contemporary #102 427 Chevy .30 over Merlin heads 11to1, TBI injection
Posts: 749
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Not Ranked
Quote:
Originally Posted by Paul F
Agreed. Get a Painless wiring kit.
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That is the first time anyone on this site has agreed with me, "Life Is Good Today"
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08-28-2012, 01:51 PM
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CC Member
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Join Date: May 2008
Location: San Jose CA,
CA
Cobra Make, Engine: SPF_R_/BRG/FRBoss302/327CI/FordEFI/Under_Car_Exh/
Posts: 2,523
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Not Ranked
__________________
Steve SPF 2734 MK3 / Brock Coupe #54- panavia.com
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08-28-2012, 02:11 PM
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Senior Club Cobra Member
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Join Date: Dec 2001
Location: Glendale,
AZ.
Cobra Make, Engine: Cobray-C3, The 60's body lines on todays chassis technology
Posts: 2,302
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Not Ranked
Here is another vote for replacing the birds nest with a new harness. A 10 circuit harness works on a basic plain old cobra but the 15 or even 20 circuit kits are so close in price, well bigger is always better. another big bonus is having a diagram and place to jot down your install notes or whatever.
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