Ever heard of anyone filling spark plug boots, distributor cap connection wells and coil well with dielectric grease--and then the truck won't start? Would the spark make it through a thick goopy film that gets inside the connectors, or can it only make it through a thin film?
Too Much Dielectric Grease?
- Thread starter jaymar
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Typically dielectric grease is just to block moisture. Shouldn't really need very much of it. But if the metals are in contact the current won't pass through the grease as it doesn't need to. I would say something isn't making contact. The grease doesn't conduct either, so maybe there is too much grease in there that you can't push one of the sockets in all the way. If you have a good seal I bet it would feel like you are hitting a hard stop when you are just trying to compact the grease.
Dielectric grease is an insulator. It should be used sparingly for corrosion resistance. Yes, if gooped on too heavily, it will cause issues.
Can't see how it can cause any damage at all.... but probably going to use a lot of qtips to clean them out. Really never used it on spark plugs, but if you do, just a thin film maybe. I usually use it to seal other wire plugs, not the actual contacts.
Another thing dielectric grease can be very helpful with, preventing the rubber boots on the end of spark plug wires from sticking fast to the spark plugs.
Anytime i install new plugs i always make it a point to apply a thin coat of dielectric grease to the inside of the rubber spark plug boot.
Since starting this practice I've never had a problem removing a spark plug boot, or had the boot tear, or pull off of the end of the plug wire.
