CJ5 Headlight Upgrade Help

John Strenk said:

One thing guys, Pull those relays and fuses out and fill the cavities with dielectric grease.

You will thank me if you ever need to change a fuse or relay later.

Don't forget all 3 headlight plugs.

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John Strenk said:

clarkg said:

John- I have seen several posts on here where people have recommended using dielectric grease on electrical connections. I have used antioxidant grease such as http://www.lowes.com/pd/IDEAL-4-oz-Tube-Noalox-Anti-Oxidant/3128351, but I always thought dielectric grease was for rubber parts such as plug boots to keep moisture out. Dielectric grease is nonconductive I believe. Or maybe I misunderstood?

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I put dielectric grease to prevent corrosion on the contact surface. It makes it easier to separate a connection years later. It is NON-Conductive but that grease is just pushed out of the way in a connector where it makes contact. The grease fills in voids where corrosion can start without it.
It also helps in preventing voltage leaks like around spark plug wires.
http://www.amazon.com/Permatex-22058-Dielectric-Tune-Up-Grease/dp/B000AL8VD2

Noalox is similar in it in that it forms a covering to prevent oxidation but it contains Zink particles to break through any oxidation that has already formed on the surface of the conductor.
This is very very important on aluminum to aluminum or aluminum to copper connections. Noalox is 'Conductive' but not by much.

Either can be used but when starting out with new copper or tinned contacts, I just use grease.

Apparently vasoline has been used but it has a melting point around 100*F so it will leak/evaporate away and leave you with no protection.

Here is a good read:
http://www.w8ji.com/dielectric_grease_vs_conductive_grease.htm

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