why are the four back ports of my heads black?
05-20-2005, 03:05 PM
#1
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Join Date: Mar 2004
Location: Davie, FL
Posts: 1,109
why are the four back ports of my heads black?
Just a ? ive been meaning to ask since ive been tearing the motor down, the ports to the back of the motor on the heads are filthy, but the front ones still look nice. What gives?
05-20-2005, 03:30 PM
#2
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Join Date: Dec 1969
Location: PORTLAND, OR, MULTNOMAH
Posts: 3,499
Re: why are the four back ports of my heads black?
If you are talking about the exhaust ports, maybe your manifold/header gaskets are bad (if headers maybe the flanges aren't flat.
Black also denotes rich condition and if the black is NOT on the flanges themselves it may not be a leak, but just too rich a condition in those cylinders for one reason or another --to be determined. JMHO
Black also denotes rich condition and if the black is NOT on the flanges themselves it may not be a leak, but just too rich a condition in those cylinders for one reason or another --to be determined. JMHO
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