Thread: Specs for surface finishes?
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Old 09-13-2004, 10:50 PM
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Lightbulb Re: Specs for surface finishes?
I found this in Steve Dove's "Guide to Buick Performance Engines" in the chapter titled "Turbo V6 Engine Building Tips" (page 123 in my edition):

"...Although the spec for a crank journal is 8 to 12 RMS, the spec for a seal surface is 10 to 20 RMS with 15 RMS a good target..."

RMS means "Root Mean Square"

I'll keep digging.
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