03-08-2022, 11:41 AM
(This post was last modified: 03-08-2022, 11:45 AM by John Cornforth.
Edit Reason: addition
)
Hi
Most people needing a wiring diagram are faultfinding and trying to understand the electrical function, which is why I drew a modern style functional diagram for the Dorset club website.
However, if you need to know the physical layout, the diagram from the Austin handbook is perhaps more relevant. These were presumably drawn up by draughstmen steeped in mechanical tradition, who drew a birds eye view of the car with its various looms. This tradition carried on to the 1950's, until electrics became so complicated that there were more lines than clapham junction !
You will see from the 1935 Ruby handbook 1316A diagram below (with my additions) that there were originally a number of non-loom wires. Some of these e.g. the trafficator arm and wiper feeds are threaded up the windscreen pillars. At least one of the horn wires goes through a grommet in the centre of the bulkhead above the battery box near the bonnet hinge. The diagram suggests that the pink or purple/black feed to the trafficators might be another non-loom wire, it only goes from the fuse to the junction box a few inches away. Both these items sit on the small flat platform to the offside of the battery box.
Aftermarket looms may reflect common modifications such as double dipping headlights and twin rear lights, so may not follow the original exactly.
Ruby Wiring Nov 1935 Handbook 1316A.jpg (Size: 83.22 KB / Downloads: 550)
Most people needing a wiring diagram are faultfinding and trying to understand the electrical function, which is why I drew a modern style functional diagram for the Dorset club website.
However, if you need to know the physical layout, the diagram from the Austin handbook is perhaps more relevant. These were presumably drawn up by draughstmen steeped in mechanical tradition, who drew a birds eye view of the car with its various looms. This tradition carried on to the 1950's, until electrics became so complicated that there were more lines than clapham junction !
You will see from the 1935 Ruby handbook 1316A diagram below (with my additions) that there were originally a number of non-loom wires. Some of these e.g. the trafficator arm and wiper feeds are threaded up the windscreen pillars. At least one of the horn wires goes through a grommet in the centre of the bulkhead above the battery box near the bonnet hinge. The diagram suggests that the pink or purple/black feed to the trafficators might be another non-loom wire, it only goes from the fuse to the junction box a few inches away. Both these items sit on the small flat platform to the offside of the battery box.
Aftermarket looms may reflect common modifications such as double dipping headlights and twin rear lights, so may not follow the original exactly.
Ruby Wiring Nov 1935 Handbook 1316A.jpg (Size: 83.22 KB / Downloads: 550)