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check my intake chamber pic - whats this from ?
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What exactly are you referring to? The uneven deposits?
yes sir that black ring that goes half way around the valve
Does your car smoke/burn oil?
no sir its from a head that i purchased and am going to refurbish and install
i checked valve clearance and found it to be to large - out of spec
so i was interested in knowing if that perhaps that black ring around the valve was a direct result of that ? perhaps normal ? interested in opinions - head we be refurbished as needed irrespective
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looks pretty normal.89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505
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Looks pretty normal to me, too-
but my current hobby horse is eccentrics with flat spots, so if it
was mine, I'd change the eccentrics. Flat eccentrics might not promote
valve rotation, so that's one possible internet guess as to why the deposit's
not more evenly distributed.
tnow, sometimes I just mess with people. It's more entertaining that way. george graves
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is this exhaust or intake? exhaust valves are exposed to much more extreme conditions due to the movement of heat from the cylinder to the exhaust.
if they are the same on every cylinder i dont think you should worry much about it.Originally posted by unloadedakIt's brand new. I've gripped the shaft a couple times and that's about it.
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You can look at the eccentrics. They're supposed to be round. Few used ones are-
if the valves are regularly adjusted, there's a secondary arc worn onto them.
If they're never adjusted, there's a big flat.
tnow, sometimes I just mess with people. It's more entertaining that way. george graves
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