Oil Level Sender wire colour, save my sanity

[Sharkbitemarky]

911 Coupe 2.7 1976 Sportomatic, UK delivered, RHD.
1975 built, 1976 model.

So I have a bunch of current flow diagrams & wiring diagrams that cover 1976 911 USA & Euro and all identify the oil level sender signal wire (The one with the rubber cover) as being a Green/White wire and the earth wire as a White however, my 76 signal wire is White/Red with a an earth wire that is White all looking very original ! Plot thickens if you look for a spare cable assembly on the internet 91161203901 any images that I can see have a White/Red or Red sender signal wire and White earth (Same/Similar to mine).

Why is this important ? I'm about to embark on the complete reassembly of the car as the body shell comes out of painting in the next week or so the area I am most concerned about is the reinstallation of the cable harnesses, so thought I'd make sure I have the correct wiring diagram for my car, as I was cleaning my original 91161203901 cable assembly at the time I thought this would be a good item to check against the diagrams..........first thing I check I have a problem ! So now I have doubts about my wiring diagrams or am I missing something ?

Your thoughts much appreciated.
Mark

[timmy2]

Are you looking at the cloth covered wires coming from the rear light fixture harness?
They are not color coded like the rest of the harnesses. The green/white wire is in the through body harness starting at the rear small 6 pin connector and ending behind the dash gauges.

Hope that helps.

[Sharkbitemarky]

Dennis,

Thanks for the speedy response

Yes the 2 wires inside the white ~5mm ID heat resistant sleeving.

If I understand correctly, you are advising that although the wire diagrams show Green/white cable connected to the actual oil level sender unit this is not actually true ? Just my luck picking this as an example !

Note: The other wires in this RH rear light cluster harness seem to follow the wiring diagram, just not the Oil Level Sender signal wire ! I wonder why this wire would be treated differently ?

Cheers
Mark T

[Hellraiser]

because it is making contact with the (sometimes very hot) oil tank.

[Sharkbitemarky]

Originally Posted by Hellraiser

because it is making contact with the (sometimes very hot) oil tank.

Hellraiser, thanks for this and understood however, my question was about the wire colour coding inconsistency .

Maybe it's something to do with the harness being dual use part i.e. L & R rear lighting with both fog light & oil level sender wiring included . !?

Cheers
Mark

[76FJ55]

I took a quick look at the 84 diagram as my 76 diagram doesnt list color. the 84 confirms the change from GN/WT to WT/RE at the sensor harness connector.

[Sharkbitemarky]

Many thanks, the 76 diagrams I have do not show the transition of colour change either side of the connector, the 84 diagram has more detail in this area. Mystery solved.

What a great forum

Mark.