Make my own loom

[geeman]

Hi all,
Ive recently been contemplating on the thought of making my own loom from scratch, just using the existing connectors from the original sierra loom, i kno i could buy one or use my existing sierra loom, but i wondered what is involved in making my own. I have a 1.8 carb cvh, and wondered what are the minimum connections to it are actually necessary to pass the iva, ie, do i need most of the sensors on the engine. Also i plan on using the sierra Haynes diagrams to build it, but does anyone have any suggestions as to if there are more useful diagrams available to build my own loom. Also i remember reading on here somewhere that someone else had made their own loom? should i use my existing fusebox as well? Thanks

[geeman]

just one other thing, i know this may sound stupid, but im on a card cvh, but the digram has a hybrid ignition module, and electirc choke, does my cvh even have these? if so, do i need them?
Thanks again!!

[AshG]

i made my own loom one 10 core trailer cable to the front one to the rear job done. the only sierra bit i used was the plugs for the sierra steering column.

there are some good wiring diagrams on westfield world that will help you split the wiring down into manageable tasks

[twinturbo]

1) Haynes diagrams are pants. The official ford diagrams are the best.

2) the Engine loom is a seperate part to the body loom. Keep that in one bit. Don't get rid of any sensors. All it whould need is a +12V, and ignition live to get it running.

3) Yes you need the Module, unelss yout want to build your own ingnition system.

4) If your building your own loom then there's no point in useing the sierra fuse box.

TT

[Bonzo]

Personaly I would bin the Sierra fusebox .........A hulking great lump, full of fuses & relays that you'll never need

Besides the engine loom.....The rest of the wiring is very basic & will prove to be quite simple if you break it into smaller individual circuits.

As said, if you are using the CVH engine as originally fitted to the car, try to keep the engine loom in one piece & don't bin any sensors.

Multi-core wire will be your best friend if you want to keep things nice & tidy

[deezee]

I used the wiring and fusebox out of my 1.8 CVH. I'm using a Megajolt ignition, so I had to make my own engine loom anyway. Stripping down, shortening and re-taping the Sierra wiring took around 6 hours shop time and around 2 hours reading the haynes manual and marking it up properly. I'm also using the Sierra stalks on the steering column and the instruments, so it made more sense.

Obviously the advantage of this is I now have a complete wiring loom, relays and fuse box, at zero cost. But the whole thing was very easy to do.

[Jezzer99]

Originally Posted by twinturbo

2) the Engine loom is a seperate part to the body loom. Keep that in one bit. Don't get rid of any sensors. All it whould need is a +12V, and ignition live to get it running.

TT

That's quite insightful... I've stripped my loom but didn't realise the engine loom could be detached. I'm sure it's obvious when the loom is stretched out, but what does the connection point for the engine loom look like?

[twinturbo]

Depends on the modle year.

Pre 90 cars have 3 plugs on the inside of the car. 3,6,9 pin.
Post 90 cars have 3 plugs behind the batery ( two oval and one square )

All Sierras should have these plugs.


If you look at,
http://www.claytune.org.uk/

Weblinks, Other resources, "Loom plugs ( granada to sierra)".

That gives most of the info on the plugs although it's intended for a slightly different audience.

TT

[AshG]

if you follow the engine loom towards the bulkhead there is a big round oval connector. detach it from there. you then need to work down from the ignition switch wires to the other half of the connector. separate all the ignition wires away from the rest then cut the rest away leaving the ignition sw ones on the connector. you then have the ignition switch wiring and the engine wiring.

that was how it was on the 1600 pinto although i would suspect the cvh will be quite similar.

edit doh twin turbo beat me to it