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Mystery wire

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Rex.keene Rex Keene
Tårnby, Sjælland, Denmark   DNK
Can anyone tell me where this white with black trace wire goes to? I don't seem to be able to find it on the autowire diagrams.

The only things I can think of in this area of the engine bay are the coil or distributor, possibly the alternator but the wire is much too short for that.

The car is a LHD '70 GT.

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RAY 67 TOURER Avatar
RAY 67 TOURER Ray Marloff
Fort Bragg, CA, USA   USA
1967 MG MGB "My Girl"
That would have been the color of the stock wire going from the coil to the distributor points. Being cut and reconnected, it's difficult to tell. RAY

Rex.keene Rex Keene
Tårnby, Sjælland, Denmark   DNK
Just realised the photo is a bit ambiguous: The wire going left to the coil is plain white.
The mystery white with black trace emerges from the loom at the same point.
The photo may look as if I'm asking about the wire attached to the coil but in reality the photo is showing two separate wires, the white running left and attached to the coil, and a white with black trace emerging from the same place on the loom, pointing off to the right and ending with a space connector.

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riley1489 Avatar
riley1489 Gold Member Bruce H
Great White North, QC, Canada   CAN
1953 Jaguar XK120
1959 Riley 1.5 "King George"
1973 MG MGB
Rex

Ray is spot on.

The White/Black trace wire from negative side of coil to distributor


B



Check your ego Amigo!

dickmoritz Avatar
dickmoritz Gold Member Dick Moritz
Philly 'burbs, PA, USA   USA
If that wire is actually white with a brown tracer then it was likely for the electrical oil pressure sending unit as was used for just a couple of years...

Dick



Errabundi Saepe, Semper Certi
(Often wrong, but always certain)

riley1489 Avatar
riley1489 Gold Member Bruce H
Great White North, QC, Canada   CAN
1953 Jaguar XK120
1959 Riley 1.5 "King George"
1973 MG MGB
I thought we were discussing WB wire?

another colour blind chap perhaps? grinning smiley

B



Check your ego Amigo!

dickmoritz Avatar
dickmoritz Gold Member Dick Moritz
Philly 'burbs, PA, USA   USA
Time can play tricks with wiring colors...

Dick

In reply to # 3535796 by riley1489 I thought we were discussing WB wire?

another colour blind chap perhaps? grinning smiley

B



Errabundi Saepe, Semper Certi
(Often wrong, but always certain)

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Rex.keene Rex Keene
Tårnby, Sjælland, Denmark   DNK
Ah, thanks for that, I hadn't thought of the oil pressure sender, and I do have an electric gauge.
I'll have to double check it, but I'm sure it was black, not brown, but I've been wrong before!
.

BumbleB74 Avatar
BumbleB74 William Milholen
Tidewater, Tidewater VA, USA   USA
Also the white/black runner goes to the tach?



1974-1/2 Roadster, "Bumble Bee", Corvette Yellow - in shambles, wire wheels
1976 Roadster, "Virus", Sandglow - "driver" condition (stock + 32/36 Weber DGEV, cast iron header, 25D distributor), bolt on wheels, ON the road!

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ClayJ Avatar
ClayJ Silver Member Clay Johnston
Mt. Olive, MS, USA   USA
1972 MG MGB
William,
The tach sense is either white (using a current sensing tach) or white-black (if using a voltage sensing tach). A 70 should be white wires at the tach that in-turn power the <pos> side of the coil.

As noted above, white-black is always trigger from dizzy.

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