Miata Mailing List: October 1997, Message #278
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From: 	"Apsilon" <apsilon@magna.com.au>

Subject: Re: Magnacore Plug Wires

Date: 	Thu, 2 Oct 1997 04:27:44 +0000



My understanding, after speaking to the Australian distributor for a half

hour when I bought mine, was the connector in the well made poor "contact"

due to the mositure. The electricity flows along the mositure instead of

where it's meant to go. That's where the silicon spray they mention on

their site comes in. It helps keep the moisture away.



Not only that but it's possibly the reason for the high failure rate of the

stock wires. Not really a failure of the wire but just accumulated moisture

in the plug well.



The warranty we have here is 10 year or 200,000km.



Matt.

Sprintex SC '94 Laguna Blue Clubman



> 

> I'm no expert, but here's my take. The *wires* aren't the weak link in

the

> Miata. Its the insulation that covers the wires. I believe the insulation

> breaks down due to the extreme conditions inside the spark plug wells. So

> an ohm-meter still shows the wires to be good, but the dielectric

> withstanding voltage of the insulation is reduced.

> 

> Just my theory.  Never verified. FWIW.

> 

> 

> --

> 	Gary Fischman

> 	MFWIC@Miata.net

>