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Cam journal wear mark

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ImageUploadedByThumper Talk1408198801.760936.jpg

I have this brown heat mark in my cam journal. Exhaust, left side.

Can any conclusions be drawn from this?

The camshaft surface for that journal is shiny on one side and darker on the other.

ImageUploadedByThumper Talk1408198898.317507.jpg

ImageUploadedByThumper Talk1408198912.683384.jpg

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What does the journal cap look like?  That is where most of the force and contact is.  Pretty sure what I see in the pictures means nothing.

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No scoring or grooves. Looks good to me too, for peace of mind, you could bolt cam in with out followers and spin cam if it does freely that's good, also check with a dial indicator for up and Down movement. If you don't have this tool, just bolt it together and run it, I believe it's alright anyways

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Didn't get a good photo of the cam cap. The surface in the cam cap is undamaged.

 

I'm going to put it back together and ride it like this, but I'm wondering if this is a heads up signal that something is wrong. Or maybe it's just had a few seconds of oil starvation after a previous teardown.

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