gasket compound cd-10 5.5

[Ray2]

anybody ever use k+w copper coat gasket compound on new head gasket,machinist at nappa recommended it,

 

[daselbee]

Re: gasket compound cd-10 5.5

Copper + steel + aluminum = dissimilar metals. In salt water, you will generate corrosion.

 

[Ray2]

Re: gasket compound cd-10 5.5

howabout fresh water only

 

[daselbee]

Re: gasket compound cd-10 5.5

I knew that was gonna be the next question. Any dissimilar metal combination in the presence of water will generate corrosion. Certain combinations are worse than others. It happens faster in salt water. The zinc eroding on a freshwater engine is an example of the presence of electrolysis even in freshwater. I wouldn't use the coppercote. You are making a little battery.....

 

[boobie]

Re: gasket compound cd-10 5.5

Use either OMC Gasket Sealing Compound Or Permatex #3.

 

[HighTrim]

Re: gasket compound cd-10 5.5

The new head gaskets don't require any sealer if they are pre coated with the shiny coating. Some even say, no sealer required.

Other wise, as Boobie stated, OMC gasket sealing compound coated evenly.