Join Date: Mar 2002
Location: Austin, TX, USA
Re: Main Engine Harness Connector--GOOP?
I don't believe the factory put any kind of dielectric grease on the connectors, but it's a good idea to do so. The dielectric grease is typically a clear silicon grease - not silicon sealer (RTV). Silicon grease has a "creaping" property that allows it to seep into inaccessable places - keeping out moisture and oxygen to prevent corrosion. I use it on just about every electrical connection I touch. But due to the creaping properties, you sometimes have to be conservative if you don't want the grease to creap out and make a mess. It will collect dust and dirt and there are some connections where you might not want that to happen.
The OEM stuffed black polyurethane sealer in the wire side of the connector to keep water and road grime out. This is also a good idea. The dielectric grease won't do this for you so both dielectric grease and urethane sealer are warranted.
68 Coupe, 350 w/ Edelbrock Performer RPM heads, cam, intake, 700R4, Dave's small body HEI