Re: Can spark plugs that look healthy be sick?

On Mar 25, 1:26 pm, cuhu...@[EMAIL PROTECTED]
 wrote:
> There are a lot of sites on the internet about, How to read spark plugs
>
> The resistors in spark plugs are for cutting down on RFI, Radio
> Frequency Interference.If you could find some NOS, New Old Stock, spark
> plugs that dont have resistors and will fit your engine, you would
> probally hear a lot of static in your vehicle's radio.Nowadays with all
> of that computerized stuff in vehicles, I can only guess what RFI would
> do.
> cuhulin

        Those resistors cut down on electrode erosion by cutting off
the spark sooner. They should be in the range of 5000 ohm, measured
between the external terminal and the "hot" end. Aircraft plugs have
similar resistors, and they're the biggest cause of plug failure.
          Resistor ignition wires cut down some on RFI.

         Dan