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Cometic gaskets

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Old 03-20-2006 | 11:39 AM
  #21  
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Default 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.
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Old 03-20-2006 | 12:20 PM
  #22  
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Default Re: Cometic gaskets

Can someone explain 50 RA in laymans terms?
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Old 03-20-2006 | 01:13 PM
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Default 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.
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Old 03-21-2006 | 12:22 AM
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Default Re: Cometic gaskets

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
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