DodgeForum.com - How do you change the spark plugs???

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breaking the porcelain shouldnt be a prob at all on the way out....hell your just gonna throw them away anyway...

Quote:

Originally Posted by dhvaughan (Post 2154237)

use a big pair of pliers, grab the heat shield and wiggle it loose - then throw them as far away as possible.

i threw mine away 4 years ago with no ill effects.

Chrysler put those there for a reason. It's to preserve the plastic on the spark plug wires, as there is some pretty intense heat down there above the exhaust manifold, even worse because of convection.

Quote:

Originally Posted by TheBigRedOne (Post 2156610)

well you think if they really wanted to keep the heat shield idea they would have gone with a half shield. more room to access the plug but it still guards from the heat. i don't know, its a toss up on this issue. i was gonna remove mine whenever i do my plugs. has anyone had problems after removing the shields?

Quote:

Originally Posted by truegent81 (Post 2156580)

i wish i could find CRC Knock'er loose. no auto store around here sells it. the only CRC product they sell for removing rusted bolts is something like Freeze Off. don't know if i would use freeze off on a plug put go for any CRC product..knock'er loose

I believe freeze off has very similar chemicals when compared to Knock'er Loose with the added freezing chemical. It won't damage anything with the freezing factor.

Quote:

Originally Posted by truegent81 (Post 2156583)

a lot of people say not to break the porcelain part of the plug, but if this happens, is the plug FUBAR? i could see why if you were installing them they would be a problem but removing them?

The porcelain breaking isn't a problem, the threads getting hosed up is. I've broken a couple, it just makes the plug unusable.

Quote:

Originally Posted by TheBigRedOne (Post 2156610)

My headers sit around 400º at idle just to give you an idea. I would think that the only concern would be the plug boot melting and allowing moisture to seep in there, or exposing the inner part of the wire and getting cross fire.