Copper grease

[PeterEvo]

I saw a few pictures on this forum where they covered oilcase-gaskets and headgaskets with coppergrease. Can somebody explain me why that is done?I am rebuilding my 4g63 engine,and I have to mount the oilcase-gasket ..so should I or shouldn't I cover the gasket in coppergrease?

 

[BogusSVO]

its not a copper grease, but a copper coat spray, it is to help with the sealing of gaskets, it helps to fill in voids in the case where the gasket would get a less than perfect seal.

the choice is yours wear to use it or not... some people love it and swear by it... others hate it....

 

[LiquidX]

Just don't use the copper spray in areas where oil will contact the spray/gasket. There are small copper particles and you don't want metal flowing through your oil. So basically, don't use it on your front case gasket or oil filter housing.