Hello folks. I am currently rebuilding a 1977 series III, 2.285, 5 brg crank diesel vehicle.
I am at the wiring stage and whilst most is pretty simple there are one or two aspects that throw me.
The first is not related to the title but the pin outs shown on the ignition key wiring seem to be incorrect in all the manuals. After buying a new switch and bussing out the connections it seems term 1 is power in, 2 is glow plugs, 3 is white stage 2 feed and 4 is red/white to start solenoid. Not as in all the book diagrams. And, on testing in off position 2 and 4 are connected, grounding glow plugs and start sov. Stage 2 is power to system 3 ( white), stage 3 is power to glow, 1 & 2 connected, stage 4 is power to glow and start sov, 1 & 2 & 4 connected. Then you return to stage 2, which is what you would expect, power to systems. Am I missing something?
Then on to the brake fail harness … so none of the wiring diagrams seem to work because of the fact that, when you switch to start (red/white) to sov, 3 (white) is disconnected during the starting crank. Therefore no power to light the brake fail light when the start power energises the brake fail relay. What am I missing here. I have white from fuse box, through light, down to PDWA, then back ( black/ white), I have a relay energised on start ( red/ white) to ground, then the relay switch ( black/white) to ground. But, nothing to power the light during start. Going bonkers trying to figure this out.
I am at the wiring stage and whilst most is pretty simple there are one or two aspects that throw me.
The first is not related to the title but the pin outs shown on the ignition key wiring seem to be incorrect in all the manuals. After buying a new switch and bussing out the connections it seems term 1 is power in, 2 is glow plugs, 3 is white stage 2 feed and 4 is red/white to start solenoid. Not as in all the book diagrams. And, on testing in off position 2 and 4 are connected, grounding glow plugs and start sov. Stage 2 is power to system 3 ( white), stage 3 is power to glow, 1 & 2 connected, stage 4 is power to glow and start sov, 1 & 2 & 4 connected. Then you return to stage 2, which is what you would expect, power to systems. Am I missing something?
Then on to the brake fail harness … so none of the wiring diagrams seem to work because of the fact that, when you switch to start (red/white) to sov, 3 (white) is disconnected during the starting crank. Therefore no power to light the brake fail light when the start power energises the brake fail relay. What am I missing here. I have white from fuse box, through light, down to PDWA, then back ( black/ white), I have a relay energised on start ( red/ white) to ground, then the relay switch ( black/white) to ground. But, nothing to power the light during start. Going bonkers trying to figure this out.
