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Quote:
Originally Posted by Werner
Guten Abend Brent,
I didn't understand everything correctly because of the foreign language. But if a newly ground C-head still seeps a little past the composite seal, then a stronger torque must cause a higher pressure = joint tightness?
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Hey Werner, -the thing that you must realize is a Model-A head is very flimsy and will distort easily. When resurfacing the head, it is easy to distort the head just when anchoring it down however if it is within 0.001 or so, it will seal. The surface finish is what is critical.
As mentioned, the RA finish of the head must be quality. In other words, if you cannot see your reflection from the head and block's gasket surface, then the surface finish grade is too low. My Kwik Way surfacing machine will consistently produce a 70+ RA finish. If the surface finish is above a 65 and the surface is flat within 0.0005 of each other, then there won't be any seepage. Just because it is a "newly ground" does not ensure the RA finish is acceptable.