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Whots involed in making a car wiring loom

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Old 16-10-2007 | 02:58 AM
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Default Whots involed in making a car wiring loom

As above whots involed Yes the car Loom not the engine loom side just the Lights ect i can buy every thing i need localy Ie wire Fuse boxs relays But whot i dont know is whot would run on the relays Ie Lights ect do they need to have a Relay

Realy I would like to find a Cossie wiring loom whitch has'nt been cut around and had Alarms ect put in it and just go from there but i cant find one without Alarm ect being cut into it

I realy dont know whot to do
Old 16-10-2007 | 06:16 AM
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I am not being funny but if you are not sure at all it would not be a good idea to attempt this.
The subject is not going to answered in a few sentences.
A relay would be used on anything that needs an electrical load higher than the switches will pass(comfortably), so headlights would be one but there are loads of others, you will also need a DECENT crimper set to make the joins at terminals, plus soldering iron etc.
Might it not just be easier/cheaper to get a alarmed one and just repair the cut out wires.
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Old 16-10-2007 | 06:21 AM
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buy one from ryan ....
Old 16-10-2007 | 06:39 AM
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try dingy mate
Old 16-10-2007 | 07:59 AM
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Yip - Ryans is a good bet IMO
Old 16-10-2007 | 09:09 AM
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would be easier to repair a loom than make one from scratch. wiring is not that difficult, and the ford colour schemes are very easy.

it might be worth pulling a whole loom from a scrapper and untaping it as a guide, but it's a lot of work to remove a whole loom as virtually every trim panel has to be removed.

a whole car loom for a beginner to make would be nigh on impossible

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Old 16-10-2007 | 09:09 AM
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not worth my agro doing full car looms, there a fucking ball ache.

i bet people think there easy, and not much work involved on a road car
Old 16-10-2007 | 09:13 AM
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Alan s1


must be able to find a loom dude.
Old 16-10-2007 | 09:15 AM
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Alan,

The concept of making a car loom aint too difficult, there are a couple of difficult(ish) circuits to consider, all depends on what type of car you are building. Pure track car is very basic, as Tabatha says relays are only really necessay when the load exceeds the switch rating or you want to control a circuit from several points.

The diificult circuits to get right are the wiper circuits, and hazard warning. Most other circuits just need sketching out before you begin laying cable.

Remeber ohms law when sizing cable/switches/relays....

V = I × R

I = V/R

R = V/I

where:

V = voltage in volts (V)
I = current in amps (A)
R = resistance in ohms
Old 16-10-2007 | 09:23 AM
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ian sibbert

Old 16-10-2007 | 09:34 AM
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ian also tell them the cost of doing a proper loom, with ETA's breakers aswell

Old 16-10-2007 | 10:13 AM
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what makes doing a complete loom such a ball ache ryan ?
Old 16-10-2007 | 10:23 AM
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1, ever car is different. so making a pattern loom isnt really an option.
2, i swear people think its just lights and wipers that runs a car. (for example heated front and rear screens, indicator and wiper stalks, central locking, possibly remote boot pop and petrol cap (could be cable pulled), ABS, interior lights, head lights, side lights, spots, fogs, number plate lights, heater control, wipers front and rear, screen wash pumps front and rear, idiot lights, and cluster lighting and minor interior lighting. starting loom, charging loom,Thats just some of them, not forgetting fuel pump wiring, and then you have all the extra gismo's that the customer wants to add in

3. The working involved in doing a car loom doesnt take 1 or 2 days. it takes a while.
4 costs involved
5 costs involved

6 and importnantly, alot of the plugs are no longer available for alot of the ford components, so you would have to pick apart all the unavailable plugs and then research and research to find the corresponding terminals.

race cars are a completely different matter though.
Old 16-10-2007 | 10:29 AM
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If financially viable Ryan and no major timescale was required would you consider quoting on doing a full loom (allready have one of your engine looms) ?
Old 16-10-2007 | 11:23 AM
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Ryan - thought about doing replacment starter / alternator looms for 3drs/saphires/escos by chance?
I can see they'd be too much work, and I'd have thought most will have seen better days (esp given the postsion of the alternator)
Old 16-10-2007 | 11:28 AM
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yes there no problem at all, can be made with new better grade cable.

could use proper cable
Old 16-10-2007 | 11:30 AM
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Ryan - whats that stuff that the engine looms you make are wrapped around in - is it called Melamide or something (the fireproof stuff?). If so how much does that cost per metre?

Chris
Old 16-10-2007 | 11:33 AM
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Cool- if you're up on saturday, i'll have a chat with you about it then
Old 16-10-2007 | 11:56 AM
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sorry to hijack the thread but how easy is it the replace the engine loom yourself with a pre made loom like one of ryans.
Old 16-10-2007 | 12:10 PM
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Originally Posted by cfoster
Ryan - whats that stuff that the engine looms you make are wrapped around in - is it called Melamide or something (the fireproof stuff?). If so how much does that cost per metre?

Chris
Chirs,

Its megamide and its quite dear..on average i'd say about 5 - 10 quid a metre....

http://www.hellermanntyton.co.za/proddetails.asp?id=562

Ian
Old 16-10-2007 | 12:33 PM
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Originally Posted by Metpol
sorry to hijack the thread but how easy is it the replace the engine loom yourself with a pre made loom like one of ryans.
very. hour or 2's work
Old 16-10-2007 | 12:38 PM
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what about a full car loom ryan could you be bribed to do one for the right money, or can you reccomend someone who could
Old 16-10-2007 | 12:41 PM
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Originally Posted by cfoster
Ryan - whats that stuff that the engine looms you make are wrapped around in - is it called Melamide or something (the fireproof stuff?). If so how much does that cost per metre?

Chris
as ryan said the melamide stuff is real expensive....if you want the same stuff (not fireproof) it can be had quite cheap from here

http://www.vehicle-wiring-products.e...ng.php#braided

very similar to what we use at work (we get ours from RS)
Old 16-10-2007 | 12:47 PM
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From my experience of designing, prototyping and instaling a loom and then reworking it to eliminate problems like back feeds etc. I'd give 1 man a full time job for 6-8 working weeks to make a car loom from scratch depending on lots of factors.
Old 16-10-2007 | 01:32 PM
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o dear im having one made for mine now



pants down
Old 16-10-2007 | 01:33 PM
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jsut for info aswell the megamide stuff isnt fireproof, it does have a high melting point, but its certainly not burn proof should your engine bay go up in flames.

i would suggest DR25, but i think you boys will pass out if you see the price of that
Old 16-10-2007 | 01:35 PM
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is that the rubber looking stuff?


thats what i was gonna be going for, but came across a engine and car loom half started in megamide
Old 16-10-2007 | 01:53 PM
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yes mate probably the stuff.

awesome stuff to work with and excellent properties, but damn expensive.
Old 16-10-2007 | 01:54 PM
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Nice one cheers Ryan! I have about 6 metres of it at home and didnt know how much to sell it for!!
Old 16-10-2007 | 02:29 PM
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i was thinking about making my own car loom but just coppying the one removed but leaving out allot of stuff like rear wiper motor, electric windows,central locking etc as i found this site to get all thats needed, hopefully

http://www.vehicle-wiring-products.e...e/homepage.php
Old 16-10-2007 | 03:08 PM
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Bollock not righting it out for the 3rd time
Ok i get the idea its going to be alot of work for me to do it

I have asked RYAN in the past and he's also helped me out with other wiring issues i've had on the phone BIG THANKS for that But a complete car loom he said would cost ALOT to do and alot of wire

And THANKS to all that have replied i did right a reply to you all in 1 big list but lost it all twise so not doing it a 3rd time
Old 16-10-2007 | 03:45 PM
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I think I should bet my arse down to night school to do auto electrics...
Old 17-10-2007 | 07:32 AM
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Alan s1 little tip for you when writing long replies mate. before clicking the submit button, press Ctrl & a to select all the text in the reply box, and then Ctrl & c to copy it to the clipboard. then press the submit button and if you get an error you simply go back a page to the reply and press Ctrl & v to paste the text in the box again so that you don't have to write it out again
Old 17-10-2007 | 07:38 AM
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Alan s1
Why not find a boggo sierra loom? Apart from a few wires, its practically the same as the cosworth loom (bar the engine loom and the ABS) I dont reckon mant base models had alarms spliced into them
Old 17-10-2007 | 11:58 AM
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Originally Posted by Daveysaff
Alan s1
Why not find a boggo sierra loom? Apart from a few wires, its practically the same as the cosworth loom (bar the engine loom and the ABS) I dont reckon mant base models had alarms spliced into them
I've done that already but im have alot of problems when it comes down to the the ABS

Nick thanks for the the tip but im usless with cumputers
Old 17-10-2007 | 12:26 PM
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Originally Posted by Alan s1
Nick thanks for the the tip but im usless with cumputers
how do you even switch it on if you can't even follow simple instructions like that?
Old 17-10-2007 | 12:29 PM
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Originally Posted by foreigneRS
Originally Posted by Alan s1
Nick thanks for the the tip but im usless with cumputers
how do you even switch it on if you can't even follow simple instructions like that?

Ons the easy bit
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