Offshoreonly.com - Cometic gaskets

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Offshoreonly.com (https://www.offshoreonly.com/forums/)

- General Q & A (https://www.offshoreonly.com/forums/general-q-20/)

- - Cometic gaskets (https://www.offshoreonly.com/forums/general-q/124209-cometic-gaskets.html)

HARDCORE A/O

03-20-2006 11:39 AM

Re: Cometic gaskets

I've just checked Cometic's website and the correct finish standard is 50 ra.
Also, the gaskets layers are Stainless Steel and the outer layers are coated with a .001" layer of Viton. They are intended to be installed without any sealers.
From what I've seen and heard, it seems they're the way to go.

BadDog

03-20-2006 12:20 PM

Re: Cometic gaskets

Can someone explain 50 RA in laymans terms?

mkulikow

03-20-2006 01:13 PM

Re: Cometic gaskets

RA is roughness average and it is exactly what is sounds like. Think of it as the machining equivalent to a sandpapers grit.

2112	03-21-2006 12:22 AM

Re: Cometic gaskets

Quote:

Originally Posted by Raylar

If you have properly torqued the Cometic head gaskets once , thats all they will ever need.

Ray @ Raylar

Thank you Ray :D

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