9 replies to this topic

[Tumbletim]

Hi there,

Just finishing a rebuild on my 1984, 998cc Mini City. I’ve connected the coil wires up but I’m left with a plain white wire with connector. Could this be for the oil pressure sensor fitted??

Also, sorry to sound silly but where does the long pink/white wire connect. It says ignition switch. Does this mean inside on the column? Sorry to sound stupid but stumped here!! ?

[cal844]

Clean the plain white wire, it may be oil pressure (white/brown) or the white/yellow which gives 12v to the coil during cranking.


Pink/white(ballast resistor) goes from coil positive to the white wires at the top of the fuse box, if you cut the loom tape back you'll find the connection.

Personally I'd recommend you remove the pink/white wire as if it overheats it will destroy the rest of the loom.

[Spider]

I've moved your post to the Technical Section.

[Ethel]

Your car's about the right age to have an unballasted* coil supply hidden away in the loom. If it is plain white it's an unfused, ignition switched, live feed so don't earth it! 

 

If your car has ballasted ignition the coil +ve will have pink/white and  yellow/white wires. Be sure to use the correct coil either way.

[Cooperman]

Do not use the pink/white wire and a 9 volt coil, ever. As someone who has twice had to rebuild a front loom due to the 'effing pink wire' burning the loom out

Use a normal wire and a 12 volt coil.

[cal844]

Do not use the pink/white wire and a 9 volt coil, ever. As someone who has twice had to rebuild a front loom due to the 'effing pink wire' burning the loom out

Use a normal wire and a 12 volt coil.

I agree with this, I have done the delete to a few cars now.

What I usually do is to retape the loom without the new wire and then run the new wire down the outside of the tape.

I know it looks messier but it keeps the damage to a minimum

[viz139]

The Pink/white wire is part of the circuit for a ballast coil system, one end has a piggyback connection that goes onto the fuse board with the other end on the coil. 

As referenced above it is important if using a ballast system that all wiring is fitted correctly and that all the correct components are used or you may get over heating. Alternatively you may switch to a standard 12 volt coil but again it is important to alter add and remove the right cables and change the necessary components to match . Mixed up wiring and components will lead to unreliability so if your unsure have somebody look at it.

[Tumbletim]

Thank you everyone. Still not sure where the Brown/White wire goes. It’s hanging freely in the coil area. Can anyone shed any light on this wire goes please? Many thanks!

[Ethel]

Brown/white is for the oil pressure switch.

[Tumbletim]

Thank you everyone but I’m still struggling! With ballast ignition wired correctly with new ballast coil from minispares...it started to burn straight away and engine just turns over. When I earth the engine block to the body, that wire gets hot. Why the earth is now getting hot, I have no idea! Any ideas?

Have now cut the pink/white wire and am going to get a standard 12v coil. I presume we still keep the other wires on the coil and do I need a separate feed from coil to fuse box? I have a white wire on the coil already. ???