Hi,

I have changed my sparkplugs many times. Last year I installed a new set of bosch sparkplug wires. Removing the wire/boot was a breeze with the old set but one pain on the neck with the new set.

Two months ago or so I was able to remove the first three sparkplug boots (300E) damaged the third boot when trying to remove it. (Basically the inner plastic was so stuck to the plug that when pulled out the plastic came outward from the metal casing.

After that happened I was so bummed out that I didn't try changing the other three plugs.

Below is a picture of my sparkplug boot metal casings.
http://ecx.images-amazon.com/images/I/512BTSYC70L._SS500_.jpg

Any suggestions on how to go about loosening them up? I need to finish the job and replace the other three sparkplugs as the car is starting to run rough, changing the first three plugs actually help but I definetely need to replace the last three.

I read somewhere else that applying some WD40 externally may soften the boot plastic and make it easier to remove. Seems like it can be a challenge since the boot is inside the metal jacket. - Any other suggestions, Any idea of what tool may work with this specific issue?

Thanks

__________________
89 300E - 240k +