Dielectric grease on spark plugs

[jerry S]

I just got a new MSD universal wire set up. The instructions recommend using dielectric grease on the boots. Is this really necessary?

 

[Hack]

If you don't use the grease, everything will still work.

The grease helps to repell moisture and keep good electrical connections. I would also assume that the boots will come off the plugs more easily in the future with a little grease in there. It really sucks when a boot tears when you're checking the plugs or something.

I also highly recommend anti seize grease on the spark plug threads.

Grease is your friend!

 

[ashford]

a friend of mine has an msd setup, and when it would rain he ocassionally heard a pop then he had a misfire. he'd open the hood and an a wire would be off the cap. greased the boots and it went away, only thin i could think of was moisture got under the boots to the connection and had some steam power going on.

 

[ssppiitt]

You can also use silicone spray.