11 replies to this topic

[nickcooper]

Hi there.
Im coming to the end of my restoration and have just realised that I dont have much of a clue about the wiring, I do have common sense but I think the last owner whos bodged the wireing didnt lol. Alot of the wiring has been Spliced and replaced and relays but its a mess!
I want to start again in my engine bay and renew all the wiring. But as I dont have a good basis to go on, does anyone have any clear pictures of a 1275 carb engine which shows the wiring?

Also would be nice to see some bays with the wiring hidden, as im thinking of this option.

Thanks nick

[Bungle]

why not just buy a new loom, as you said this is a restoration so why skimp on something that could cause your mini to catch fire

did you also reuse all the old brake and fuel lines ?

[nickcooper]

Because I just found out im having a baby and need the money now lol, im not going to bodge it just so it works, I want to make my own loom thats long to run in the wing to hide it, and to make it neet.
Cheers

[bourney]

Because I just found out im having a baby and need the money now lol, im not going to bodge it just so it works, I want to make my own loom thats long to run in the wing to hide it, and to make it neet.
Cheers

I've being wanting to do this myself, as the previous owner of my mini was a little too eager with the old snips and scotch locks (thats when he was good enough to use them, most of the wires behind my dash were electrical taped!! together).

Anyway, i don't think it's going to be as hard as you think, just get a wiring diagram off t'internet so you know where each wire goes and work off that. I'm going to use the oppostunity to relocate the fuse box and hide the wiring.

[nickcooper]

Cheers for your help, thats what im planning. I was thinking of keeping the fuse box on display and hiding the wiring from there

[dklawson]

Keep in mind that if you do fix rather than replace your car's loom that color coded wire is not something you will pick up at the DIY center. If you replace all the damaged wires/wiring with the same color, troubleshooting future problems will be a nightmare for you and any future owners of your car.

One method I have seen used for budget solutions is to replace the damaged "middle" sections of wire with some generic color (NOT black) and solder that to wires of the correct color at each end. The solder joints then are covered with heat shrink tubing and the bundle re-wrapped with loom tape. Do not use electrical tape over the loom. With the exception of mid-span failure of the wires this will still allow you to troubleshoot the various circuits referencing the stock wire color codes.

[nickcooper]

Thanks for your help, thats a good idea but most of the wireing has been changed and is mostly 2 colours already lol
I was thinking of them little plastic printed labels that fit on the wire as I should be able to get them.
I think ive worked out parts of the ignition but im definatly going to consult the haynes when I find it.
Cheers

Edited by nickcooper, 15 November 2011 - 05:54 AM.

[sayli]

As above plus the fan motor electric can run in the fan property from the within of the plan.

[nickcooper]

Sorry I might be being daft but I dont quite understand?

[charliedurrant]

Nick,

I have just done what you are about to do. My wiring in my bay was okay in terms of it being 'correct' but it was very brittle and had cracks in the sleeving all over the place.

1) You'll need two types of wire

a - thin wall 2.7mm2 1 reel. For some reason I chose red and black (was having a senior moment) just choose black

http://www.autoelect...70/category/114

code 010703

b - thin wall 3.3mm2 - black again - 6 meters (to be on the safe side)

http://www.autoelect...70/category/114

code 010704

b - 5 meters of thin wall

2) For colour coding, I used some clips (not printed ones as the print falls of, but colour coded)

http://www.autoelect...345/category/67

I chose the smallest and they are okay (ish) in terms of clipping but once I got the colours right I used super glue to hold them fast

3) Cable wrap - I chose yellow as it was on offer - go for black!

loom tape http://www.autoelect...348/category/68

4 rolls will do the engine bay and have some spare

also get some sticky tape!

4) BMC chose to join their left and right front lights in the middle, I joined them in the left hand side of the front engine bay - better I think.

In terms of photos - if I'm honest it's a hard thing to photograph and a lot of detail is required. I took my time checking each wire and it all worked fine. Follow the wiring diagram and it will all be fine.

I have to go now but I hope it goes well.

Charlie

[charliedurrant]

Oops, I forgot

5) Spade crimp connectors (I don't like bullets as they bind too strongly)

6.3mm (fully insulated)
Blue male and female x 50
Red male and female x 10 (approx)
Yellow male and female x 10 (approx)

10mm
Yellow female x 5 (just in case)

6) Ring crimp connectors

Yellow (6 or 8mm, can't remember) x 5 - solenoid connection

7) Crimping tool

Charlie

[nickcooper]

Thanks for your help, much apprecated!