spark plug arcing

[frank213]

Hello i hope every buddy is having a great Halloween. ok i hope somebody can help me. ok i notice a week ago that i had spark plug arcing so i change the spark plug cables (msd) and spark plugs ( autolites)hoping that will fix the problem well it didnt i still had the same problem so i exchange the cables thinking that they mite me be defective so installed the new ones and i still had the same problem dos anybody have an idea of what can be going wrong....could it be the spark plug gap size cause when i installed them i didnt check them because the guy at pepboys told me that they where gaped already?

 

[HISSIN50]

What is your spark plug arcing to? Or is it the spark plug wires that are arcing?

A quality set of wires should be able to withstand a serious plug gap before allowing juice to seep.

As you can see, a little clarfication on the exact location and nature of the issue will help.

Good luck.

 

[frank213]

well it arcing from the spark plug boot into the engine block where the spark plugs go in. i have used 2 sets of msd cables and its still arcing from the same area

 

[HISSIN50]

The plug gap should not have been that car off out of the box..........

Are the boots seated all the way down over the plug? If you pull a wire that's arcing and put an old plug into the boot and set the plug's threads on the intake, does the wire leak (disable the fuel system so the car doesnt start)?

Getting two sets of bad wires would be weird but not impossible. I personally would be doing little goofy tests like above to see what gives.

I'm sure the other guys will have some good ideas for you.

Good luck.