What Do You Know About Oily Plug Wires?

[Van]

My neighbor is helping me put this 7M back on the road: He said that oil on the plug wires mean they are going to be dodgy, and need replacing. What do you know about oily wires?

Cajunkenny wrote:

From an electrical stand point, oil is conductive. So, if you had one or more (oiled) wires, it would increase your chances of a misfire. Other than that, I can't think of what he could be referring to.

I'm trying to dehydrate the oily plug wires... I sprayed Chlorinated brake cleaner in the valley and in the plug wires. What effect will that have on the oiled wires? Van

 

[IJ.]

I'd finish cleaning with Prepsol Wax and Grease remover that you'd use before painting a car as it doesn't leave residue.

 

[GrimJack]

Not enough, I suspect. If the wires are modern, they probably don't care about the oil, they are made from materials that won't absorb it.

If, however, they are the wires that came on the car in 1987, they are likely toast, and it UNlikely as hell that they can be reconditioned to work properly.

 

[Van]

Not enough, I suspect. If the wires are modern, they probably don't care about the oil, they are made from materials that won't absorb it.

If, however, they are the wires that came on the car in 1987, they are likely toast, and it UNlikely as hell that they can be reconditioned to work properly.

The plug wires are three months old. Stock Supra wires.

I'd finish cleaning with Prepsol Wax and Grease remover that you'd use before painting a car as it doesn't leave residue.

Thanks for the tip. I'll see where I might buy that Stateside.
I still have a misfire under load, that I'm going to sort out, using these tips.
Thanks guys. Van

 

[IJ.]

Should be available at any paint supply store Van.