Now on to gasket matching the exhaust to spec I pull the other head to.
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I started by bringing fixed points into spec.
F=.45in
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E=.755in
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D=.625in
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Getting on to the next step ran into to major problem. Them cheap burrs wear a round edge that digs and bites hard, so will spin round in the port. This burr is dangerous and don't recommend its use, get a quality one for this work. This snap-on may be getting dull but has not rounded its edges, so is safe to still use. It also makes a cleaner cut that dose not leave scales like the cheap one dose.
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With A&B, not a lot is taken off A but a bit of digging is done at B. B is pulled straigt in the port and made a clean radius to D.
A=1.675in
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B=1.800in
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This is what it looks like after cutting A&B.
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Now on to making a paper dragon
C=1.725in
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I made this cut as flat as I can.
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Then went to blend it into the port.
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Then just knocked off the sharp edge on the chamfer that was made.
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Now its a mirror copy of the other head.
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