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543 Posts
Discussion Starter · #1 ·
I'm in the process of gutting my engine electrical harness('72 Elky) and noticed when I pulled the main connector off the firewall, the pins were covered with what looked like thick oil or dark grease. This connector has never been opened so I'm not sure if this is
just old crud from years of oil and engine cleaner or some sort of conductive grease. Plus, most conductive grease I've seen is white. BTW... I haven't had any problems with the electrical.. I'm just replacing everything for cosmetics. Thanks for any info,
Bill T.

Almost original owner of '72 Elky SS - 415cu Motown,AFR 210's, Hyd. Roller;
Baer 13" discs front/rear, 17" x45ZR tired "Grocery Getter"
-- also an '87 German Corvair (Carrera Targa - "The Heartbeat of Germany")

Premium Member
1,404 Posts

The factory weathersealed the outside of the main connectors. It was more like a hard sealer of sorts. When I replaced a few connectors on my new harness it looked the the new mfgs of harnesses use a silicon. I used either a black silicone or RTV, with great results.


69' SS396 Chevelle
L78 396/375hp
M-21 Close Ratio
Cortez Silver
10 year Resto
It's brand new again!
02' Harley FatBoy, Diamond Ice pearl.
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