Saturday 5 February 2022

FHC resto nr. 140; Door harness refurbishing

With the brake and fuel pipes finished, I moved back to the cars wiring. And in particular one of the door harnesses (TKC3831). These were never fitted to ’76 cars. But I have the complete and (more important) unmolested wiring harnesses, from a late Solihull FHC, which I will be using on this car. But as I have decided not to use the door mounted interior lights, only part of these two harnesses is needed. And one harness needs a few alterations to switch the roof mounted interior light. But the easiest one first


As expected it was in pretty good shape. But I decided to strip it down completely nevertheless. Just in case! Unwrapping the wires and removing the terminals from the connector block didn’t reveal any hidden horrors. Only the female spade terminals for the door light and door switch were removed, as they were badly corroded.
For the tools used, I refer to THIS earlier article in my blog


Next job was cleaning the connector blocks, after which the terminals could be refitted to them.



Speaker connectors

Final jobs were fitting the new female spade terminals together with new (soft PVC) electrical insulation sleeves. After which the harness could be re-wrapped. For this I used non-adhesive PVC wrapping tape.

Door harness TKC3831

As I had some time left l also cleaned and refurbished (where necessary) two small leads;

Backlight feed UKC2427

Coolant lead ULC2353

A few hours well spent! Next I will subject the wiring diagram to a proper study, to work out what is the easiest way to connect the roof mounted interior light to the door switches. And what changes are necessary to the other door harness.

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