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Advise with electrical connectors

3457 Views 13 Replies 5 Participants Last post by  retro
So I have my carb off for rebuild on my 98 450ES and see a number of connectors that I can easily have access to clean. When taken apart they are very dirty inside both sides, what do you do to clean inside the small areas by the pins? I do have contact cleaner but think it needs to be scrubbed to make it right. Also after the cleaning I will fill with white lithium to waterproof them. Eventually will do all of them but doing what I can get to first.
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I use these little plumbers acid brushes and contact cleaner

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Oh used those exact brushes at work a few years ago. Not sure where you get them tho but can't be hard to find. I still think q-tips might work ok also, just have to make sure part of it doesn't get left....
I saw those brushes at menards in plumbing. I use them mainly to dislodge/wash the dirt out of the connectors. Especially old dielectric grease.

Oh yeah Mac mentioned the backshell pin removal tools; I鈥檝e used them to replace backshells and reset pins when the anchor tab gets bent
Fill with dielectric grease when you're done cleaning them to waterproof them. The best you can really do is use contact cleaner to clean them unless you have the correct tools to take them apart and clean the pins individually. Or maybe have teeny tiny brushes and the patience of a god, that would work also....
Do NOT put dielectric grease on the electrical contacts as the grease is an insulator.
I understand it鈥檚 an insulator but check out these instructions on the grease Pak

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