rewiring an entire car - worth it??

[l1ttle_d3vil]

ive got a 1972 ke25 with a completely hacked loom. its the early model and pretty hard to find a replacement loom to just swap over.

what sort of work would be involved in rewiring the dash/engine wiring?
its had an engine conversion and running its own engine management, so all that is required is the standard dash / ignition / engine bay wiring for the indicators, headlights etc to be re-made.

is this a fairly straight forward job for a suitable qualified person?
the current loom works, but its cut up too much to "copy" from...

any thoughts?

[DeeCee]

Well I'm just going through the same thing with my Celica as I want to cut back the existing loom and extroneous wiring and hide my wiring in the engine bay.

You'll ideally need the wiring diagram for your car to determine which wire is which, relay and fuses boxes and a multimeter and all the plugs that connect to the factory fuse box, lights, indicators etc.

Its a long and tedious job as you have to seperate out the loom and then figure out which component needs what fuse and/or relay.

From there, you can either repin the wiring at the plug end and the fuse/replay end with new wire, or solder up the existing wiring and heatshrink.

As it is an older car, I can't imagine the work to be too tedious with a big pile of wiring. You just have to be systematic and patiently work it all out.

[Bling]

I've rewired half one of my projects, not hard at all, but if you are starting with not much to copy from... the hardest part would be working out the relays etc required as mentioned above. Things like indicators are easy. You could always grab a loom from another similar car and modify that.

[Lloyd]

You'll ideally need the wiring diagram for your car to determine which wire is which, relay and fuses boxes and a multimeter and all the plugs that connect to the factory fuse box, lights, indicators etc.

Its a KE25, relays hadn't been invented yet... much.



Rip it all out and start again man. The only stuff going to the dash cluster that wont be lighting related will be the oil pressure warning light and alternator light. Anything else under the dash will likely be for heater fan etc which isn't overly complicated, wipers... and nothing much else.

If you can understand relays then it should all be pretty simple, just time consuming depending on how clean you want it looking. Relay most of the lighting stuff and it'll be sweet

[Mr.Phreak]

is this a fairly straight forward job for a suitable qualified person?
the current loom works, but its cut up too much to "copy" from...

any thoughts?

It's a straight forward job enough, but a bit time consuming, so I don't know if I'd want to be paying an auto sparkies hourly rate while he does it.

Being a KE25, you shouldn't need anything to copy off as such as it's pretty basic, although I'd run relays for the headlights both for better performance and to save your stalk contacts a little longer. And there's a good chance your local library will have a copy of a Haynes manual or similar that should have the wiring diagram should you need it.....but yeah, there's really not much to it.

[DeeCee]

I did say it wouldn't be too tedious as it is an older car

[Lloyd]

Dunno if the US spec ones are the same or the same colours, but might be somewhere to start...






Edit, bugger its turned the resolution down. Can email it to you if you want

[evil_si]

looking at that diagram it would be easy to rewire,
old corollas are simple,

wait till you get into a late model injected car and decide to rewire it then think twice

[DeeCee]

wait till you get into a late model injected car and decide to rewire it then think twice

yep - where i'm at lol