mk1 1960 wiring

[captain]

having a problem on the rebuild, refitted loom and most electrics. seem to have something wrong somewhere in the wiring,the layout,off the wires on the back of the fuel guage ie green, green and black ect? when switching the ignition on the fuel guage flies to full, even stays up with the tank unit, disconnected,the problem is the old loom wiring is very difficult,to establish the colour code on the cloth covered wires and they are all black underneath the cloth.got a wiring diagram but still strugling any help would be much appreciated

[JC T ONE]

its the wire that goes to the float in the fueltank, its connected to earth/body somewhere .

Try to disconnect it, above the wiper motor, where the rear & front looms meet.

[814CWE]

looking from engine bay 2 greens go to left
green/black goes to right of gauge

make sure you have correct sender ,with nut/stud fittings on wires

spade type senders do not work-on the pre autumn 64 gauges... just reads full !!!

[captain]

thanks for your advice boys the wires on the gauge were wrong as you pointed out brookshaw,the only problem i have now, is the oil light has gone very dim thanks again captain

[814CWE]

bloody minis

[zippypinhead]

"...the problem is the old loom wiring is very difficult,to establish the colour code on the cloth covered wires and they are all black underneath the cloth...."

Ahhhhh, the holistic approach to old British car wiring......
Well, this gray-ish/black-ish hunk of half burnt wire could have been green with a red trace at some time during it's life.... Let's just hook it up and find out.... psssssshhhhhht, burning smell.... Okay, maybe it was just a black wire....

One of the tricks I picked up from a magazine was to make up a "ground jumper" to be used whenever you're messing around with the sparkies:
Get an in-line fuse holder and 30amp fuse. Figure out how to make up connectors for your battery ground post and chassis ground. Any time you're messing around with the electrics, just remove the battery ground wire and replace it with the fused one. It allows you to check any circuit exept the starter without letting out any expensive Lucas smoke.