Wiring replacement

[tim wood]

Evening to all,
Over the winter I’m planning to replace the main and dashboard harnesses. I’ll probably buy the parts from Autosparks . My existing cables have been modified many times - quite often by me and during the RHD conversion I extended the existing and also swapped to toggle switches. So I have a bit of a rats nest to contend with.

I’ve read the guides from the knowledge base.
Any other tips would be useful from those who have done this job.

Thanks

[MSM]

Hi Tim

If you have not done so already renew the fuse boxes. Buy yourself a copy of the Coventry whatever wiring diagrams. Get a set of replacement grommets and stock up on patience!!

Mike

[tim wood]

Thanks Mike,
I’ve done the fuse boxes , the grommets is thing I hadn’t thought of.

Tim

[MSM]

Tim

Another couple of thoughts. As you are grovelling about under the dash replace the instrument voltage regulator with a solid state version.

I have a recollection that I had to extend some leads at the RH end of the dash cable, maybe something to do with the ignition switch?

[DWW]

If your ignition switch/key is on the dash, as on a series 1, install a 40A ignition relay.

[tim wood]

Thanks Danny, yup that’s in place

Tim

[mgcjag]

Hi Tim...would reccomend laying out a new harness on the floor/table and taking the time to lable each wire both ends and buzz it out.....iv had a few connectors that wernt crimped correctly so I always pull off the plastic sleeve and solder each one.....time worth spending now on the table rather than fault finding in the car....Steve

[Jack the lad]

I bought a Series 2 full wiring harness (3 parts) and was delighted with it. Every lead had the correct connector fitted and all the wires were the correct colour code and length. I tied small labels to each end with the name of where it went then offered it up to the car. I had previously bought a grommet kit (big bag without any clue as to where they went) and as I removed each grommet in turn matched it to the new one from the bag, this was the worst part of the job. All the wires fitted perfectly and were well connected to their end connectors. I have no connection (no pun intended) to Autosparks and cannot recommend them enough, my harnesses were perfect in every respect.

[tim wood]

Thanks for all the comments - useful stuff.
I may well go to the stoneleigh spares day and have a chat with the guys.
I’m not afraid of wiring issues and am competent with a meter and iron but this is a fairly involved job

Tim