The wiring diagram of the Triumph TR3 gives a detailed description of the wiring system, which is used to power several components within the car. Knowing how to read and understand the wiring diagram can help an owner or technician better diagnose and troubleshoot any potential problems with the vehicle's electrical system.. 1960 TR3. I finally got myself motivated to start tackling the new wiring harness. Everything looks good but I'm having trouble with the wiring diagram in my old triumph manual because there wires in the old harness that are not there in the new one. I'll start with the centre gauge.
Does anyone have an enlarged or colorized wiring diagram for a 1957 TR3? I have a digital copy of the service manual but I was not able to copy the one page and then enlarge it. Also does anyone have a list of the wire sizes and color codes used for each application on the TR3?. I am currently finishing up a restoration of a 1960 TR-3A (after 60,000 VIN). I printed off a wiring diagram from ' www.advanceautowire.com ', but the more I use it, the more errors I find. I've also got a TR-2 Factory Shop Manual, and one for a TR-4. But, of course, one is too early, and the other too late. If anyone knows where I can purchase an accurate wiring diagram for this car, please.